We are at Star Steel Works are leading Manufacturer, Supplier, & Exporter of ASTM A320 grade L7 Bolts in india.
A320 Grade L7 is intended for low-temperature service down to -150° F and has a minimum Charpy impact value of 20-ft-lbf at this temperature.
This Alloy Steel Bolts are developed with the use of hi-tech machines and instruments at the sound manufacturing unit. ASTM A320 gr L7 Fasteners is a solid solution alloy that can only be hardened by cold working, where quality is the most important parameter for customer satisfaction. A320 ASTM Grade L7 Fasteners as Bolts is often used in chemical processing, transport and storage – tanks, piping, pressure vessels, and heat exchangers. Financial stability, credibility, goodwill and reputation are some of the key parameters that our quality controllers appoint our manufacturing staff for ASTM A320 L7 SS Bolts. Adding lead to the brasses in amounts of 0.5 % to 4 % over L7 AS Bolts, results in free cutting of free-machining alloys in which the elemental lead is present as uniformly dispersed particles.
|Grade||Size||Tensile ksi, min||Yield, ksi, min||Elong, %, min||RA % min||Charpy Impact
|L7||Up to 2-1/2||125||105||16||50||-150° F|
|Element||L7 (AISI 4140)|
|Carbon||0.37 - 0.49%|
|Manganese||0.65 - 1.10%|
|Silicon||0.15 - 0.35%|
|Chromium||0.75 - 1.20%|
|Molybdenum||0.15 - 0.25%|
|L7||A194 Grade 4 or 7||F436|
|Grade L7 Bolting||Astm A320 Gr L7 Threaded Rods|
|Grade L7 Stud Bolts||Sa320 Gr L7 Screws|
|Sa320 L7 Specification Hex Cap Screws||A320 Gr L7 Square Bolts|
|Grade L7 Studs||Grade L7 Heavy Hex Screws|
|Asme Sa 320 Grade L7 Hex Bolts||Asme Sa 320 Gr L7 Bolts|
|Astm A320 Grade L7 Square Bolts||Astm A320 Gr L7 Screws|
|A320 Gr L7 Studs||Astm A320 Gr L7 Stud Bolts|
|Grade L7 Hex Bolts||Asme Sa 320 Gr L7 Hex Cap Screws|
|Astm A320 L7 Heavy Hex Screws||Astm A320 Grade L7 Threaded Rods|
|Astm A320 Gr L7 Heavy Hex Screws||Astm A320 Grade L7 Heavy Hex Screws|
|A320 L7 Specification Hex Bolts||Asme Sa 320 L7 Hex Cap Screws|
|Grade L7 Cap Screws||A320 L7 Specification Hex Cap Screws|
|Asme Sa 320 Gr L7 Hex Bolts||Astm A320 Gr L7 Studs|
|Sa320 Gr L7 Square Bolts|
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