Luke Steel, a prominent manufacturer and supplier based in Houston, Houstan, focuses on crafting top-notch Alloy Steel Gr B6 Fasteners designed specifically for high-temperature and corrosive industrial settings. These fasteners are produced in line with ASTM A193 standards and are made from stainless alloy steel, which offers remarkable strength, resistance to oxidation, and long-lasting durability. Luke Steel provides a range of B6 fasteners—including bolts, nuts, studs, and washers—in various sizes and finishes, ensuring they meet the needs of demanding mechanical and structural applications. Known for their precision manufacturing, reliable quality, and timely delivery, Luke Steel caters to industries like power generation, petrochemical, and refining.
Alloy Steel Gr B6 Fasteners are primarily made from martensitic stainless steel, similar to Type 410, and contain chromium (11.5–13.5%), carbon (≤0.15%), along with trace amounts of manganese, silicon, and sulfur. These fasteners are usually hardened and tempered to achieve a minimum tensile strength of 585 MPa and a yield strength of 415 MPa, providing good hardness and moderate corrosion resistance. Their mechanical properties make them ideal for moderately corrosive and high-temperature environments while ensuring they maintain structural integrity under stress.
Specification :Â ASTM A193 / ASME SA193
Dimension :Â DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range :Â M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length :Â 3 mm to 200 mm
| Alloy Steel B6 | C | Mn | Si | P | S | Co | Cr |
| 0.15 max | 1.00 max | 1.00 max | 0.040 | 0.030 | – | 11.50-13.50 |
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
| 666 (≥) | 997 (≥) | 42 | 14 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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Hexagon Bolts / Set Screws |
Stud Bolts |
Hexagon Nuts |
Socket Capscrews |
|---|---|---|---|
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DIN 931 |
BS4882 |
DIN 934 |
DIN 912 |
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DIN 933 |
DIN 976 |
BS 1768 |
DIN 6912 |
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BS 1768 |
BS 1769 |
DIN 7984 |
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UNI 5731 |
BS 1083 |
ANSI B18.3 |
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UNI 5739 |
BS 3692 |
ISO 4762 |
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ISO 4014 |
ISO 4032 |
UNI 5931 |
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ISO 4017 |
ISO 4033 |
BS 2470 |
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BS 1769 |
ANSI B18.2.2 |
BS 4168 |
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BS 3692 |
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ANSI B18.2.1 |
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Socket & Slotted Set Screws |
Socket & Slotted Countersunk Screws |
Studs |
Washers |
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DIN 913 |
DIN 963 |
DIN 938 |
DIN 125 |
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DIN 914 |
DIN 7991 |
DIN 939 |
DIN 9021 |
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DIN 915 |
BS 4168 |
DIN 2510 |
BS 4320 |
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DIN 916 |
BS 1981 |
BS 4439 |
BS 3410 |
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DIN 551 |
BS 483 |
BS 2693 |
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DIN 553 |
BS 2470 |
Spring Washers |
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DIN 438 |
DIN 127 |
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BS 4168 |
BS 4464 |
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BS 1802 |
Alloy Steel Gr B6 Fasteners find extensive use in refinery equipment, steam and gas turbines, valve assemblies, chemical processing, and high-temperature service pipelines. They are particularly well-suited for bolting components that are exposed to heat and oxidation, such as pressure vessels and flanged connections. Their ability to retain strength and dimensional stability at elevated temperatures makes them perfect for both static and dynamic load applications. B6 fasteners offer a cost-effective and durable solution for installations where corrosion resistance is important, though not as critical as in chloride-rich or marine environments.
Luke Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Houstan, USA.
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