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Owing to its purpose accurate dimensions and specific designs, these ASTM A320 L7 Screws are widely used in various industries. Offered AISI 4140 Stud Bolts is used in pump industry, engineering industry and also in automotive industry. AISI 4142 Fasteners are circumferential welded into the system at its neck which explains that the reliability of the welded area can be easily scrutinized by radiography. These ASME SA 320 L7 Fasteners are designed to offer a super combination of heat resistance, corrosion resistance, toughness, strength and high temperature. Offered AISI 4140 Nuts can be availed in bulk quantity by our valuable customers at market leading price.
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ASTM A320 AISI 4140 12 Point Bolts, ASTM A320 Grade L7 AISI 4142 Bolts, ASTM A320 L7 Hexagon Head Cap Bolts Manufacturer in Mumbai, India.
Production, Supply, Stock Range of ASTM A320 L7 (AISI 4140 / 4142)
Thread Diameters : Up to 2-1/2
Threads Configuration : ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification : Dual Certified As per ASTM & ASME Codes
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
The ASTM A320 specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts used for pressure vessels, valves, flanges, and fittings. Like the ASTM A193 specification, unless otherwise specified, the 8UN thread series is specified on fastener larger than 1” in diameter.
|ASTM A320 L7 Alloy steel||AISI 4140/4142 Quenched and tempered|
ASTM A320 Grade L7 Chemical Properties
|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%|
ASTM A320 Grade L7 Mechanical Properties
|Grade||Size||Tensile, ksi min||Yield, ksi, min||Charpy Impact||Elong, % min||RA, %, min|
|L7||up to 21/2||125||105||-150° F||16||50|
ASTM A320 L7 AISI 4140 / 4142 Bolts Manufacturer, SA320 AISI 4140 / 4142 Bolts Supplier in India- ASME, DIN, AS, BS
Tarq Bolt is a leading manufacturer and exporter of astm a320 L7 aisi 4140 bolts in India. Our inventory includes astm sa320 L7 aisi 4142 stud bolts in many grades including stainless steel 304 bolts are readily available in all standard sizes and schedules.