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TorqBolt Private Limited is a known exporter of ASTM A320 L7 (AISI 4140 / 4142) Fasteners, which are precise and definite making the clinching job very smooth. We owned a position of leading manufacturer and supplier of ASTM A194 Grade 7 nuts for ASTM A320 L7 bolting amongst clients, which are used in the world’s most technically demanding industries. By keeping track with current market developments, we are offering ASTM A320 L7 Bolts. With the support of our experts and sophisticated in-house facilities, we have been able to provide an array of ASTM A320 L7 Stud Bolts which is widely used for low-temperature bolting of pressure vessels, valves, flanges and fittings. Washers for use with ASTM A320 L7 bolting conform to ASTM F436/F436M unless otherwise specified.
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 to Grade L7 are liquid quenched and tempered at 1100 °F [593 °C] minimum. These ASME SA 320 L7 Fasteners are Charpy impact tested at -150 °F [-101 °C], with a minimum average of 20 ft-lbf [27 J] on full-size specimens. 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. Thread dimensions, finish, marking and certification follow the common requirements of ASTM A962/A962M (ASTM A320 Section 4).
Grades
| 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% |
| Phosphorus, max | 0.04% |
| Sulfur, max | 0.04% |
| Silicon | 0.15 – 0.35% |
| Chromium | 0.75 – 1.20% |
| Nickel | |
| 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
TorqBolt 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 readily available in standard sizes.
