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Production, Supply, Stock Range of ASTM A193 B8M Cl 2
Thread Diameters : Up to 2-1/2
Threads Configuration : ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification : Dual Certified As per ASTM & ASME Codes
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service
ASTM A193 specification covers alloy steel and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. Several grades are covered, including ferritic steels and austenitic stainless steels designated B5, B8, B8M and so forth. Selection will depend upon design, service conditions, mechanical properties, and high temperature characteristics.Material according to ASTM A193 B8M Class 2 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
ASTM A193, Grade B8M Class 2 Stainless steel, AISI 316, carbide solution treated. Stainless steel, AISI 316, strain hardened.
ASTM A193 B8M Class 2
ASTM A193 B8M Class 2 | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
ASTM A193 B8M Class 2 Mechanical Properties / Tensile Strength / Hardness Chart
Grade | Description | Diameter | Tensile Strength, min. | Yield Strength, min. | Hardness, max. | Marking |
ASTM A193 B8M class 2 | S31600 (316) | 3/4” and under | 110 | 95 | 321 HB or 35 HRC | B8MSH |
over 3/4” to 1” | 100 | 80 | 321 HB or 35 HRC | |||
over 1” to 1 1/4” | 95 | 65 | 321 HB or 35 HRC | |||
over 1 1/4” to 1 1/2” | 90 | 50 | 321 HB or 35 HRC |
ASTM A193 B8M Class 2 Chemical Properties
Element | B8M Class 2 (AISI 316) |
Carbon | 0.08% max |
Manganese | 2.00% max |
Phosphorus, max | 0.045% |
Sulfur, max | 0.030% |
Silicon | 1.00% max |
Chromium | 16.0 - 18.0% |
Nickel | 10.0 - 14.0% |
Molybdenum | 2.00 - 3.00% |
ASTM A193 B8M Class 2 Bolts Mechanical Properties
Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
---|---|---|---|---|---|
B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
7/8 - 1 | 100 | 80 | 20 | 45 | |
1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 |
ASTM A193 B8M Cl 2 Bolts Manufacturer, SA193 Cl 2 Bolts Supplier in India- ASME, DIN, AS, BS
Tarq Bolt is a leading manufacturer and exporter of astm a193 b8 cl2 bolts in India. Our inventory includes astm sa193 b8 class 2 stud bolts in many grades including stainless steel 316 bolts are readily available in all standard sizes and schedules.