Carbon Steel Fasteners are among the most reliable and cost-effective components used in a wide range of industrial applications. At Grafton Pipe Fittings, we take pride in offering premium quality Carbon Steel Fasteners that conform to international standards such as ASTM A307 and UNS K03005. These fasteners are designed for durability, excellent mechanical properties, and high tensile strength, making them suitable for a variety of structural and engineering environments.
Grafton Pipe Fittings manufactures a comprehensive range of Carbon Steel Bolts, Nuts, Washers, Studs, Hex Screws, and Threaded Rods using superior grade carbon steel that ensures both reliability and performance. These components are known for their ability to withstand high pressure, harsh environments, and elevated temperatures. With strong resistance to wear and fatigue, our carbon steel fasteners offer long service life and reduce maintenance costs across operations.
Our products are manufactured under strict quality controls and are accompanied by detailed Material Test Certificates (MTC), in compliance with ASTM standards and other international specifications. The ASTM A307 Grade A and B fasteners we supply are used in a variety of industries including oil & gas, petrochemical, power generation, construction, and shipbuilding. The UNS number K03005 is the universal designation for this grade of carbon steel, recognized for its mechanical strength and weldability.
These fasteners are processed using advanced CNC machinery and heat treatment technologies to improve their tensile properties. The surface finish can be customized with black oxide coating, hot-dip galvanizing, zinc plating, or phosphate coating based on the application requirements. Grafton Pipe Fittings provides both standard and customized fasteners in multiple thread types such as UNC, UNF, BSW, and metric dimensions.
Specification | ASTM A182 / B564 / A105 / A350 / A694 / B381 |
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Dimension Standard | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
Size | 1/2" (15 NB) to 48" (1200 NB) |
Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64, etc. |
Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673 |
JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
BS Flanges | BS4504 PN 6, BS4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS4504 PN 64, BS4504 PN 100, BS4504 PN 160, BS4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H. |
Stainless Steel Socket Weld Flanges | 304, 304L, 304H, 310S, 316, 316L, 316H, 316Ti, 317/317L, 321/321H, 347/347H, 904L, 446 |
Duplex Steel Socket Weld Flanges | S31803 F51, S32205 F60 |
Super Duplex Steel Socket Weld Flanges | S32750, S32760 |
Carbon Steel Socket Weld Flanges | A105, LF2, IS 2062, F42, F46, F52, F60, F65, F70 |
Alloy Steel Socket Weld Flanges | F1, F5, F9, F11, F12, F22, F91 |
High Nickel Alloy | 200, 201, 400, K500, 600, 601, 625, 718, 800, 825, C22, C276, B2, X |
Alloy 20 Socket Weld Flanges | Alloy 20 |
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