And the ASTM A320 Grade L7m Bolts and ASTM A320 Bolts has a minimum Charpy impact value of 15 ft-lb at this temperature. Standard ASTM A320 Grade L7 Stud Bolts covers up those fittings in which the alloy has been rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts. ASTM A320 Grade L7 Studs Bolts and ASME Sa 320 L7m Asme Sa 320 L7 Stud bolts and L7m Nuts Manufacturer and supppliers in india. ASTM A320 Bolts are made under the specification covering alloy steel and stainless steel materials and are intended for use under low temperature services. It covers forged, rolled and strain hardened fasteners. Viha Steel & Forging is a leading manufacturer and supplier of the different types of Astm A320 Grade L7
Both are similar in the chemical composition but have differences in the mechanical properties. The grade L7M has higher hardness values than the L7 bolts. The ASTM A320 Grade L7 Material has carbon, manganese, phosphorus, sulfur, silicon, 24% nickel, 13% chromium, molybdenum, titanium, aluminum, vanadium and boron in the composition. This composition allows the bolts to have excellent ASTM A320 L7 Studs - AmeriBoltAmeriBolt, Inc. is your source for ASTM A320 L7 Studs and A320 L7 Stud Bolts in a variety of finishes including A320 L7 Blue Teflon Studs, A320 L7 Zinc Plated Studs, and A320 L7 Hot Dip Galvanized Stud Bolts. A320 L7 Studs in custom lengths from 1/2 to 3 Diameter. ASTM A320,A194 High Tensile Grade L7/7 FastenersAlloy Steel Gr.7 Wing Nuts, Alloy Steel Gr 7 Spring Washers, Alloy Steel 7 Heavy Hex Nuts, Chrome Moly Grade L7 J Bolts, Alloy Steel Grade L7 Star Washer, Alloy Steel Gr.L7 Tap End Stud Bolts, Alloy Steel Gr L7 Hex Bolts, Alloy Steel L7 Flat Washers, Alloy Steel Grade L7 Weld Nuts, Chrome Moly Grade 7 Heavy Stud Bolts, ASTM A194 Alloy Steel Grade 7 U Bolts, High Quality Alloy Steel Grade L7/7
Grade L7. This is the most common A320 bolt grade. A320 Grade L7 bolts and threaded studs are manufactured from alloy steel with chromium, manganese, and molybdenum. The bolts undergo a heat treating process to reach their required mechanical properties. L7 threaded studs and short, headed bolts are readily available in the marketplace. Nuts and Washers ASTM A320 - ASTM A320 Powered by A320 bolts will use A194 heavy hex nuts. There are multiple grades within the A194 specification. The appropriate grade of A194 nut will be determined by the chemistry and strength of the fastener grade. The chart below matches the compatible grade of nut with the specific grade of bolt. Stud nut Manufacturers & Suppliers, China stud nut ASTM A193 Grade B7 Stud ASTM A194 Grade 2h Heavy Hex Nut. ASTM A325 Heavy Hex Stud Bolts and Nuts. SA320 L43 L7 PTFE Coated Stud Bolt and Nuts.
ASTM A320, Grade L7 This grade is intended for low temperature service down to minus 150° F and has a minimum Charpy impact value of 20 ft. lbs. at this temperature. (-50° to 1100° F) ASTM A320, Grade L7M Similar to L7 studs except that the minimum yield and tensile strength requirements are reduced and the hardness controlled to 235 Brinell maximum.