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Material | Specification | Standards | Size | Length |
ASTM A193 B8C Bolt
| IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 – 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 | |
| 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 |
| Element | B7 | B8 | B8M |
| Carbon | 0.37 – 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 – 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 – 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 – 1.20% | 18.0 – 20.0% | 16.0 – 18.0% |
| Nickel | 8.0 – 11.0% | 10.0 – 14.0% | |
| Molybdenum | 0.15 – 0.25% | 2.00 – 3.00% |
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We supply these ASTM A193 B8C Bolts in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: ASTM A193 B8C bolts are manufactured from AISI 347 stainless steel, a material that provides outstanding corrosion resistance, particularly in settings where oxidation and elevated temperatures pose challenges. This quality makes them well-suited for chemical processing, petrochemical, and other corrosive applications.
High Temperature Strength: These bolts are engineered to retain their mechanical properties under high temperatures, reaching up to 800°F (427°C). This strength at high temperatures makes them perfect for uses where heat resistance is essential.
Chemical Compatibility: AISI 347 stainless steel, employed in ASTM A193 B8C bolts, demonstrates strong chemical compatibility across a broad spectrum of substances, such as organic acids, oxidizing acids, and salts. This improves their dependability in chemical processing and related industries.
Mechanical Properties: B8C bolts are recognized for their outstanding mechanical properties, such as high tensile strength and toughness. They are capable of bearing considerable loads and stresses while preserving their structural integrity.
Versatility: These bolts are adaptable and are used across numerous industries, such as oil and gas, power generation, and aerospace, where their blend of corrosion resistance, temperature stability, and mechanical strength is greatly appreciated.
ASTM A193 B8C Bolts serve uses as varied as the sectors they support, led chiefly by the aerospace, railway, construction and automotive fields along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
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