It is made of alloy steel and has six radial lines on the top of the bolt head. The carbon content in steel can range from 0.1%-1.5%, but the most widely used grades of steel contain only 0.1%-0.25% carbon. An example using a hex bolt with property class 10.9. 10 x 100 = 1,000 N/mm2 (MPa) The Yield stress ratio 9 x 10 = 90%. Thin Pattern. Eg. Size 7, 0.407" Large End Diam, Uncoated Steel 3/8-24 Threaded Taper Pin. Also, Kodur et al [6] (2012) proposed relations for variation of thermal and mechanical properties of All America Threaded Products will dual certify to ASTM A354 BD and SAE J429 Grade 8. Zinc-plated, zinc yellow-chromate plated, and chrome-plated steel washers are corrosion resistant in wet environments. They are then heat-treated to achieve a hardness of 33 to 39 on the Rockwell C . (See R m,nom in the table of next page) So property class 8.8 . Used in automotive and related industries, these fasteners can be found in small quantities in automotive and home improvement stores. It operated from December 1944 to November 2001. Alloy Steel: Properties, Processing . blown240 . Physical Properties of steel grade Class 8.8 Heat Treatment of steel grade Class 8.8 Heat treated : 1714°C - 1432°C Technological Curves of steel grade Class 8.8 No Curve Cross Reference Table (Equivalent Grade) of Class 8.8 2.2The property class symbols, indicating the most important mechanical properties, consist of two figures, one on either side of a dot. ASTM A194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1/4 through 4 in. The Nominal tensile strength of a 10.9 bolt is calculated. SAE J429 covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in sizes to 1-1/2" inclusive. As can be seen, the grade 10.9 bolts indicated better post-fire performance in comparison with the grade 8.8 steel bolts. Grade 3.6. 101,530. A variety of Grade 8 bolts are available from Lighting Bolt & Supply. SAE J429-Grade 8.2 Medium carbon boron steel: quenched & tempered ASTM F1554 Anchor Bolts, Steel Grade 36 Low or medium carbon steel 1/4 - 4-in 58,000(min) 80,000 (max) . PROPERTIES OF GRADE 8.8 BOLT & NUT (ISO) BOLT SIZE PITCH STRESS AREA MM2 BOLT/STUD/SCREW ISO 898-1 Gr.8.8 NUT ISO 898-2 Gr.8 PROOF . AISI 4140 is a low alloy steel. Grade 8 bolts are medium carbon alloy steel, quenched and tempered at a minimum temperature of 800 degrees Fahrenheit. ASTM Standards. Continue Shopping View Your Cart. Many other grades exist but are used far less often. The additions of chromium and molybdenum are why AISI 4140 is considered a . Your Price: $8.81 Qty. SAE threaded rods do not require permanent grade markings on the ends of the rods like many ASTM specifications do. 90% of 1,000 = 900 N/mm2 (MPa) Bolts and Studs can be supplied in Property classes. This is a medium carbon steel bolt specification. Black ultra-corrosion-resistant coated and zinc-aluminum coated steel washers resist chemicals and withstand 1, 000 hours of salt spray. 3. Steel Black Oxide. SAE J429 covers a number of other grades and grade variations not covered in this summary, including 4, 5.1, 5.2, 8.1, and 8.2. Mechanical Properties ; Proof Load (MPa) Min. Grade 8 basically just says they want a minimum strength, and could really care less about the material. Dia: M10 - M110. is 2.0 no maximum value While every care has been taken in preparation of the information,the company accepts no liability for any loss or damage either direct or consequential. 2.2The property class symbols, indicating the most important mechanical properties, consist of two figures, one on either side of a dot. Profile Page. 18.8 stainless steel has superior corrosion resistance, (compared to the 400 series stainless) is generally non-magnetic and is hardenable only by . Joined: Aug 2, 2005 Posts: 1,770. They are sometimes referred to as Allthread or Threaded Bar. Mechanical properties of fasteners made of carbon steel and alloy steel Grade 8.8. 800. Grade 2, Grade 5, Grade 8, and Alloy Steel. Grade 8 Nut Properties A six sided internally threaded fastener made from steel. Discussion in 'The Hokey Ass Message Board' started by blown240, Mar 16, 2008. Low alloy steels rely on elements other than just iron and carbon to enhance their mechanical properties. Geneva Steel was a steel mill located in Vineyard, Utah, United States, founded during World War II to enhance national steel output. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter. J11697 is the UNS number. Dia: 1/2" - 4.0". and metric M6 through M100 nominal. Grade 8. With a minimum tensile strength of 150 ksi and minimum yield of 130 ksi, Grade 8 has a greater tensile and yield strength compared to other steel grades such as Grade 2, Grade 5 and B7. Besides, the alloy has other favorable properties, including excellent fabrication characteristics, low-temperature non-magnetic strength [down to -320 °F (-196 °C)], and ductility. will probably do the job though. Length: 1/2" - 52". The table below shows the typical properties of steels at room temperature (25°C). SAE Grade 5 - 120,000. High-Strength Grade 8 Steel Flanged Hex Head Screws Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. 8 Grade Nuts, 8.8 Grade Bolts & other Fasteners AISI 15B25 0.23 / 0.28 0.90 / 1.30 0.30 max 0.10 / 0.20 0.03 0.03 0.0005 / 0.003 - - - . Carbon improves steel hardness. A grade 8 bolt is stronger than the more commonly used grade 5. 8 - Low Head - DIN 7984, 102 products available to order online (QFT6009046G,QFT6009075F,QFT6009076G,QFT6009139K,QFT6009045F,QFT6009099K,QFT6009156B,QFT6009160F,QFT6009026G,QFT6009081M) 8 Bolts belong to the DIN 933 grade 8 Made from Grade 8 steel, these bolts can be used in high-stress applications, such as valves Carriage bolts have a smooth . Grade 8 (SAE J429) is a medium carbon alloy steel with one of the highest tensile strengths available. SAE J429 covers a number of other grades and grade variations not covered in this summary, including 4, 5.1, 5.2, 8.1, and 8.2. Yield Strength (in.) . Standard. China AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Steel Round Bar, Find details about China Steel Bar, Alloy Steel from AISI 4140 Scm440 42CrMo4/1.7225 En19/709m40 Forging Steel Round Bar - HUNAN QILU INDUSTRIAL CO., LTD. SCM440 reacts well in heat treatment and it is easy to process under heat treatment conditions. SAE J429 bolts from Glaser and Associates are available in three grades, 2, 5 . 90% of 1,000 = 900 N/mm2 (MPa) Bolts and Studs can be supplied in Property classes. SHARE POST #9. hexagon mild steel bar Cited properties are appropriate for the heat treated (HT) condition. Because of the properties and the characteristics that these fasteners have they are used in a large number of industrial applications such as marine industries, aerospace, automotive, defence, etc. ASTM A36 is a steel grade, not a . A few of the most common grades of steel plates and sheets are: A36 - a low carbon steel with good strength, formability that can be securely welded with a minimum yield strength of 36,000 PSI. Tensile Strength Min. Grade 8.8 Bolts Class 8.8 Nuts They have good hardness and their strength makes them suited to withstand the load or stress in automobile assemblies. (psi) Min. Below is a basic summary of the most common grades. Silicon strengthens the steel strength. Class 10.9 is similar to . An example using a hex bolt with property class 10.9. A572-50 - higher strength steel with a minimum yield of 50,000 PSI and increased corrosion resistance. Grade 8 Washers do not crush and deform when torque is applied in tightening. The flange distributes pressure over the surface, eliminating the need for a washer. Manufacturer & supplier of ASME SA 194 Gr 8 Heavy Hex Nuts Material in india . SAE J429 covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in sizes to 1-1/2" inclusive. For example, 8.8, the first figure indicates 1/100 of the nominal tensile strength in N/mm2. Thanks to . (psi) 1 100,000 - Alloy steel: quenched & tempered 10.9 M5 - M39 830 1040 (150,800 PSI) Alloy steel: quenched & tempered 240 8.8 Low or medium carbon steel Medium carbon steel: quenched & tempered Material Core Hardness Rockwell . The bolts are typically made of a medium carbon alloy steel that is plated in zinc for extra resilience. Hardnesses are Brinell Hardness Numbers. ASTM A563 - Grade B: Carbon Steel: 1/4 thru 1: 120: B69: C32: 3,4: over 1 thru 1-1/2: 105: ASTM A563 - Grade C: Carbon Steel May be Quenchedand Tampered: 1/4 thru 4: 144: B78: C38: 5: . Add to Cart. The wide ranges of tensile strength, yield strength, and hardness are largely due to different heat treatment . SSAW: outer diameter:219-3200mm thickness:5-25mm. Grade Identification Marking C39 C44 1100 C32 C39 940 12.9 M1.6 - M39 970 . BS970 080M40 material or En8 steel equivalent to European EN (German DIN EN, French NF EN), ISO, Japanese JIS and Chinese GB standard (for . ASTM A564 Stainless Steel Age Hardened. ERW; outer diameter:21.3-660mm thickness:6-25mm. Mechanical Properties of Metric Stainless Steel Per . ASTM A178 Grade C. ASTM A29 Grade 1034. Joe Miranda, 9100 liked this post 02-22-2018, 08:06 PM #4 DJ2 Aluminum Join Date Feb 2007 Location Ontario, Canada Posts 186 8.8 NUT BS . Diameter 20 to 100 Milimeter / Inch 3/4 to 3.1/2. Steel can be broadly categorized into four groups based on their chemical compositions: Carbon Steels. SAE J429 Grades 2, 5, and 8. . The grade 8 bolt can be identified via the flat, hexagonal head marked by six radial lines and occupy the highest position on the bolt . SAE Grade 8- 150,000. or alloy steel and when tested at room temperature. Elements such as manganese, phosphorus, and sulfur are found in all grades of steel, but, whereas manganese provides beneficial effects, phosphorus and sulfur are deleterious to steel's strength and durability. 8.8 Grade Washer Size Metric. EN Class 8.8 EN ISO 898-1 chemical Carbon, Silicon, Manganese, Phosphorus, Sulfur are called "Five Elements". We recommend using grade 8 nuts, flat washers and high alloy lock washers with any grade 8 bolts / hex cap screws. There is little difference in corrosion resistance among the 18-8 types, although slight differences in chemical composition do make certain grades more resistant than others to specific chemicals or atmospheres. Mechanical Properties of Common Stainless Steel Fasteners in Accordance with ASTM F593 Nominal Dia. En8 Steel Equivalent Grade. They are generally manufactured from variants of medium carbon steel. Below is a basic summary of the most common grades. SAE J429. Viha Steel & Forging is a leading manufacturer and supplier of the different types of ASME SA 194 Gr 8 Nut fasteners. SAE J429. The Yield stress is therefore. - - - 10.9 Grade Fasteners TYPES OF STEEL CHEMICAL COMPOSITION (%) USED FOR HIGH TENSILE FASTENERS C Mn Si Cr S(Max)P(Max) B Mo Pb Ni AISI 1541 0.36 / 0.44 1.35 / 1.65 0.15 / 0.30 - 0.05 0.04 - - - - . LSAW; outer diameter:325-1524mm thickness:6-50mm. Panel Nuts (Pipe) Reversible Hex Lock Nut, 2-Way. In Fig. Equivalent Materials to ASTM F568M Class 8.8. The Grade 8.8 Bolts, screws, and studs with specified property classes — coarse thread and fine pitch thread. Grade 9 structural bolts, also known as grade 9 hex cap screws, are one the strongest structural bolts that can be used today. The hardness of the medium carbon steel Metric Grade 8.8 can be increased by heat treating them. 5, and 6, the average reduction factor of the mechanical properties is demonstrated. Class 10.9 is stronger than class 8.8. Threaded Rod Grade 8.8 Steel (DIN 976) Our Grade 8.8 Steel Threaded Rods are generally fully stocked in 1 metre lengths in thread sizes above M3, both as Steel and Zinc plated options. Grade 3.6. In AISI 4140, additions of chromium, molybdenum, and manganese are used to increase the strength and hardenability of the steel. For example, 8.8, the first figure indicates 1/100 of the nominal tensile strength in N/mm2. We use high carbon steel material and . It is also quenched and tempered at 800 F leading to its strength. Its unique name came from a resort that once operated nearby on the shore of Utah Lake.. $24.56 ea. Also if 800 degrees is reached or exceeded in the end use, the fastener will continue to soften and eventually be grade 2. Check Grade 8.8 Threaded Rod Specifications, Buy Din 933 Grade 8.8 Studs And M10 En 15048 Bolts at best price. They list two types of steel, grade 8 high tensile and grade 6 high tensile. So much for all the strength specs. The ISO 898-1:2013 Grade 8.8 specification covers carbon steel bolts and studs ranging from M-6 to M-64 diameter. Grade 8.8 Bolts belong to the DIN 933 grade 8.8 standard. Yield Strength (MPa) Min. Grade 8.8 high tensile steel is often referred to as the structural grade for bolts. What that means is that the 8.8 has give to it, is more forgiving and can move some, where with stainless, the steel is rigid IE: will snap much easier. See the latest inventory on Grade 8 Bolts currently available by looking through the online catalog. SAE Grade 2 - 74,000. Its a shackle steel listed in Van Beest's Green Pin range. SAE J429 covers fasteners sizes up to 1-1/2" inclusive. ASTM A194 Grade 8 Nuts belong to the specification for high pressure and high temperature services. 18-8 Stainless Steel. The steel mill was used in a dance scene in the 1984 film Footloose with Kevin Bacon. For technical drawings and 3-D models, click on a part number. 116,000. Tensile Strength (MPa) Class 8.8 Medium carbon steel, quenched and tempered: All sizes below 16mm: 580: 640. . Manganese contributes to increase the steel firmness, strength and wear resistance. SAE J429 Grade 8 U bolts US $1000 . Alloy Steels. The second figure signifies that the fastener will begin to yield at 80% of the Ultimate Tensile Strength, i.e. SAE J429 is the standard specification for inch-series steel bolts, screws, studs, SEMS screws and U-bolts in sizes up to and including 1-1/2 inches. (See R m,nom in the table of next page) So property class 8.8 . Thick. ASTM A356 grade 8 is an alloy steel formulated for casting. Chemical composition (mass fraction) (wt.%) of the ASTM Grade8 Mechanical Properties of steel grade ASTM Grade8 Physical Properties of steel grade ASTM Grade8 Heat Treatment of steel grade ASTM Grade8 Heat treated : 1993°C - 1466°C Technological Curves of steel grade ASTM Grade8 No Curve Cross Reference Table (Equivalent Grade) of ASTM Grade8 They are at least 25% stronger than medium-strength steel screws. Size. Grade 18-8 stainless steel density is 7.93 g/cm3 (0.286 lb/in3), yield strength at 0.2% is minimum 30 ksi (205 MPa), tensile strength is minimum 75 ksi (515 MPa), maximum Brinell hardness is 201 HB, maximum Rockwell hardness is 92 HRB. Joined: Sep 1, 2007 . Grade 8 bolt Gr 8 bolt capability in yield (stretch) = 130,000 lbs / in2 x .03349 in2 = 4354 lbs minimum High tensile Grade 8 bolt capability in tension (failure) = 150,000 lbs / in2 x .03349 in2 = 5024 lbs minimum Grade 8 hex bolts have 6 marks on the head. 10 x 100 = 1,000 N/mm2 (MPa) The Yield stress ratio 9 x 10 = 90%. Advanced High Strength Steel: Nomenclature, Grades, and Applications. 1931S/X, Mar 16, 2008. Metric Nylon Lock Nuts. It is recommended that a Grade 8 Flat Washer be used with Grade 8 Nuts and Bolts. Properties shown are those of coarse 8-pitch thread heavy hex nuts. Light Hex, Regular Height. Under the 800, no significant hardness or strength degradation. A516-70 - steel with a minimum tensile strength . Flange Grade F, Steel Zinc. ASTM A1018. View Product Details . A screw of 5.8 Steel Grade means 500MPa is Tensile . The size of the nuts range from 2mm to 20mm and the diameters range from 4mm to 30mm. Inhouse manufacturing facilities for Hardened BS 3692 Grade 8.8 Steel Punched Washer and 8.8 High Tensile Machined Washer in all sizes and dimensions. The digit after the decimal .8 stands for its Tensile Yield Strength which is 0.8 times to its UTS. Heat Treated Alloy Steel - Yellow Zinc Plated. Chart for easy comparison of US / Metric screws and bolts. Some equivalent materials may be stricter whereas others may be outside the bounds of the original material in selected parameters. Grade 2, 5, and 8 are usually plated with a slightly blue-ish or yellow zinc coating, or are galvanized, to resist corrosion. ASTM A479 Stainless Steel . Welding Grade 8 Steel Nuts/Bolts. For instance, the Class 8.8 Bolts have an increased hardness, ductility, yield strength, and impact resistance. Grade 8 bolts are specified for high strength applications and are commonly used in heavy manufacturing, such as tractor and truck fabrication for instance. There's no more information than that. For information on 18-8 stainless steel material properties see our Material Grade Identification and Properties Chart. It is commonly found in high strength automotive applications. It is always a bit unusual to compare them as they use different measurement systems (PSI vs. Mpa). Grade 18-8 SS material is non-magnetic in the annealed condition, but may be slightly magnetic after cold working. Katalor Is the ASTM A334 Grade 8 steel pipe distributor and stockist,In addition,we have Machining equipment for steel pipe deep . Fig. A grade 8.8 fastener can be manufactured from any material whose mechanical properties meet or exceed the requirements set forth in the relevant harmonised standards.The two-digit nomenclature is . Holding Down Bolts Grade 8 (Bolt Failure) Chart - Standard 48 52 In Stock Zinc II plated yellow 8=640 MPa The Gr 4 Bolts are composed of different grades of steel, the greater the tensile strength of the steel, the The standards for the strength grade of bolts are set according to a system ideated by the Society of Bolts are composed of . It is titled: Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners. ASTM A29 Grade 1035. Lower than grade 10.9 in terms of tensile strength, these high tensile grade 8.8 Stainless Steel Bolts are generally used in the automobile industry. Is Grade 8 or 10.9 stronger? Download : Download high-res image (296KB) Download : Download full-size image. Length: 12 - 1200MM. There are ASTM specifications that have similar strength properties which may be easier to find in the form of all thread rod than their SAE equivalent. Mark's Standard Handbook for Mechanical Engineers lists Grade 8's as 150 ksi fasteners meaning the tensile strength is 150,000 lbs per square inch. SAE J429 Grade 8 Fasteners Useful Information. MSC #: 67704882. It has a fairly low thermal conductivity and a moderately high embodied energy among cast alloy steels. SAE J429 Grade 8 Alloy Steel Bolts: SAE J429 Grade 8 Shoulder Bolts: SAE J429 Grade 8 Fasteners Price List. Light Hex, Thin Height. The size of ASTM A334 Grade 8 carbon and alloy welded pipe/tube. 4, Fig. Military Standards. 2 - Steel Grades, Properties and Global Standards Outokumpu steel name International steel designation Typical chemical composition, % Products EN ASTM UNS JIS C N Cr Ni Mo Others FERRITIC GRADES 4600 1.4600 - - - 0.02 11.2 0.85 Ti H S 4512 1.4512 409 - SUS409 0.02 11.5 0.2 Ti H C S 4003 1.4003 - S40977 - 0.02 11.5 0.5 P H C S . Grade 8.8 Washer Size Inch. AISI 304 (1.4301) Stainless Steel. Stainless Steels. Download equivalents as an Excel file. Heat treatment is also used to improve their mechanical characteristics. If you don't find what you need, give us call at + 225-272-6200 or email us at sales@lightningboltandsupply.com and we'll be more than happy to help. Max. According to EN1993-1-8 § 3.6.1(4) the design shear resistance F v,Rd should only be used where the bolts are used in holes with nominal clearances not exceeding those for normal holes as specified in EN 1090-2 'Requirements for the execution of steel structures'. They are the main impurities in steel. Stainless steel-grade 13-8 can be heat treated in the following conditions: CONDITION A: Soak at 927°C (1700°F) and cool for 1 h below 16°C (60°F). Heat treated Grade 8.8 Bolt is known to exhibit good tensile strength and perform well in most . While the typical grade 8 bolt has a tensile strength of 150,000 PSI, a grade 9 bolt has a tensile strength of 180,000PSI. I have of course contacted the company, and they have given me the tensile and yield strengths for the grade 8 material as TS=860Mpa and YS=580Mpa. The following tables summarize En8 steel properties, and specifications including chemical composition, mechanical properties, welding, hardness, heat treatment, etc. grade 8.8 hexagonal head bolts, at temperatures up to 800°C. i.e. . is 0.5 and max is 0.7 . This is a structural grade for bolts. ASTM A108 Carbon and Alloy Steel Bars. 180,000. We are also generally able to stock the vast majority of thread sizes in 2 metre and 3 metre lengths . The government bought off on it. you will put so much heat into them the properties will change. What is a Class 8 nut? For use with bolts of a minimum tensile strength equal to or less than 150,000 psi. Grade 2 requirements for sizes 1/4" - 3/4" are applicable only to bolts 6" and under, and also to to all lengths of studs. Please refer Original standards for details. ASTM A356 Grade 8 is the ASTM designation for this material. Heat Treatment. The Nominal tensile strength of a 10.9 bolt is calculated. Heat treating the En 15048 Grade 8.8 leads to a change in the mechanical fasteners. 0.5 - 0.7 min. -0.8 max is 0.8 no minimum value Eg. Grade 8 SAE Flat Washers are manufactured from High Strength Alloy Steel. DIN ISO EN 4017 & 4014 DIN 933 / 931 & IS 1363 / 1363. I came across a specific requirement of M6 Steel Screws from Mild Steel Grade 5.8 From the internet, I knew that 5 stands for the Tensile Ultimate Strength (UTS) in MPa divided by 100. $24.56. Only bolt assemblies of classes 8.8 and 10.9 may be used as preloaded bolts. It can be plated in many other coatings.For high tensile steel grade 8.8, a torque wrench will be required for the tightening of said product. "alloy steel, 150ski minimum tensile strength" would have been a better way to put it, unless the bolt can actually made by modifying an off the. Stainless Steel A286 is a precipitation-hardenable super-alloy based on iron. The two figures indicate the tensile and yield strengths of the bolt or screw. These bolts are heat treated by quenched and tempered methods. AISI 316 Stainless Steel: Specification and Datasheet. With a minimum tensile strength of 150 ksi and a minimum yield of 130 ksi, Grade 8 has a higher tensile and yield strength than other steel grades such as Grade 5 and B7. Stainless works okay for toe rails on a sail boat or to lock a winch down to the deck or for fishing pole holders, but on a bike other than decorative things, I'd be leery to run them in places . In the case of a 8.8 grade bolt the first figure signifies that the Tensile Strength is at least 800MPa. or alloy steel and when tested at room temperature. Navstar Steel is a leading manufacturer and supplier of the Grade 8.8 Bolts in different types. 4142 quenched & tempered qt steel round bar. ASTM A53 Carbon Steel Pipes. 75,420. at least 640MPa. It is kind of a stupid way of putting it. Grade 9 bolts are ideal for heavy-duty applications and are also often used in heavy machinery . Surface Finish. Tool Steels. 2.0- min. ASTM A311 Grade 1035 Class A. ASTM A394 Type 1. * Torque value based on 75% of proof load and finish as recieved steel NOTES: Left hand side of '-' is minimum value Right hand side of '-' is maximum value Eg. Grade 8 Steel Properties - manufacturer, factory, supplier from China. Grade 8 Medium carbon alloy steel, quenched and tempered: 1/4" thru 1-1/2" 120,000: 130,000: 150,000: Grade A325 Carbon or alloy steel with or without boron . Grade 8 bolts have a tensile strength of 150,000 pounds per square inch. . Properties of 18.8 Stainless Steel. It is the most common form of high tensile material and is usually stocked in plain finish or zinc. Grade 8 Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or both. BOLT SIZE PITCH STRESS AREA MM2 BOLT/STUD/SCREW BS 3692 Gr. tensile strength is 150,000 lbs per square inch ultimate shear strength Grade 5 bolt 0.145" Shank Diam, 7/8" Washer Diam, Grade 1062 Steel Powder Actuated Drive Pin with Washer MSC #: 77486736. CONDITION RH 950: Treat Condition A material for 2 h at -73°C (-100°F), air warm to room temperature, heat the cold treated material to 510°C (950°F) for 4 h and finally cool . The material finds use in applications requiring high strength, paired with corrosion resistance up to 1300 °F (700 °C). The Yield stress is therefore. The standard was withdrawn in 2012. and has been replaced by ISO 898-1

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grade 8 steel properties

grade 8 steel properties