ASTM A320 Bolts and Nuts
ASTM A320 L7 Hexagon Nuts, ASTM A320 Self Locking Nut, ASTM A320 Square Nuts, ASTM A320 Hexagon Coupling Nuts, ASTM A320 Hexagon Nuts, ASTM A320 L7 Castle Nuts, ASTM A320 U- Bolts, ASTM A320 J Bolts, ASTM A320 L7 Mushroom Head Bolts, ASTM A320 Bolts, ASTM A320 Stud Bolts, ASTM A320 L7 Hex Head Bolts, Manufacturer & Supplier in India.
Ubique Alloys Pvt. Ltd is a distinguished manufacturer and supplier of ASTM A320 Bolts and Nuts, which is a low carbon corrosion resistant austenitic chromium-nickel-molybdenum steel. Machining ASTM A320 Hex Head Bolts requires low speeds and constant feeds to reduce its tendency to work harden. The low carbon in ASTM A320 Hex Head Nuts provides resistance to sensitization during welding and other thermal processes. Due to its low carbon content, ASTM A320 Square Bolts also provides resistance to sensitization when welded and higher creep, stress to rupture, and tensile strength at elevated temperatures. In addition to excellent corrosion resistance and strength properties, ASTM A320 Square Nuts provides the excellent fabricability and formability. ASTM A320 Eye Bolts has higher creep, stress-to-rupture and tensile strengths than other steels. For optimum corrosion resistance, a post-work annealing in ASTM A320 Eye Nuts is recommended. At temperatures under 100 Degree F (38 Degree C), they have excellent resistance to higher concentrations.
We specialize in supply of ASTM A320 T Bolts, along with equivalent fittings for manufacture of heat exchangers, piping systems, tanks and pressure vessels. ASTM A320 T Nuts can be used in applications where it is not possible to anneal after welding and where maximum corrosion resistance is required. The high corrosion resistance properties of ASTM A320 Lag Bolts make it suitable for highly corrosive acidic chloride environments such as in pulp and paper mills.
ASTM A320 Bolts and Nuts Specification
Grade | ASTM A320 : Grade L7, L7M, B8, B8M |
Dimensions | ASME B18.2.1, B18.3 |
Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc |
Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
Form | Nuts, Bolts |
Types | Hexagon Nuts, Self Locking Nut, Square Nuts, Hexagon Coupling Nuts, Hexagon Castle Nuts, Hexagon Domed Cap Nuts, Hexagon Thin Nuts, U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, Bolts, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, T-Head Bolts, Eye Bolt, Foundation Bolts, Structural Bolts etc |
ASTM A320 Bolts and Nuts Property Class
For Bolts & Screws | A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H |
For Nuts | A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040 |
For SHCS | F837B, F837C, F837E, F837 |
For Threaded Rods | A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2 |
ASTM A320 Bolts and Nuts Equivalent Grades
L7 | AISI 4140/4142 Quenched and tempered |
L7M | AISI 4145 Quenched and tempered |
L43 | AISI 4340 Quenched and tempered |
B8 Class 1 | AISI 304, carbide solution treated |
B8 Class 2 | AISI 304, carbide solution treated, strain hardened |
B8M Class 1 | AISI 316, carbide solution treated |
B8M Class 2 | AISI 316, carbide solution treated, strain hardened |
ASTM A320 Bolts and Nuts Chemical Composition
Element | L7 (AISI 4140) | L43 (AISI 4340) | B8 (AISI 304) | B8M (AISI 316) |
Carbon | 0.37 – 0.49% | 0.38 – 0.43% | 0.08% max | 0.08% max |
Manganese | 0.65 – 1.10% | 0.75 – 1.00% | 2.00% max | 2.00% max |
Phosphorus, max | 0.035% | 0.035% | 0.045% | 0.045% |
Sulfur, max | 0.040% | 0.040% | 0.030% | 0.030% |
Silicon | 0.15 – 0.35% | 0.15 – 0.35% | 1.00% max | 1.00% max |
Chromium | 0.75 – 1.20% | 0.70 – 0.90% | 18.0 – 20.0% | 16.0 – 18.0% |
Nickel | 1.65 – 2.00% | 8.0 – 11.0% | 10.0 – 14.0% | |
Molybdenum | 0.15 – 0.25% | 0.02 – 0.30% |
|
2.00 – 3.00% |
ASTM A320 Bolts and Nuts Mechanical Properties
Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | Charpy Impact 20-ft-lbf @ temp |
L7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | -150° F |
L43 | Up to 4 | 125 | 105 | 16 | 50 | -150° F |
B8 Class 1 | All | 75 | 30 | 30 | 50 | N/A |
B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 | N/A |
7/8 – 1 | 115 | 80 | 15 | 35 | N/A | |
1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | N/A | |
1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 | N/A | |
B8M Class 1 | All | 75 | 30 | 30 | 50 | N/A |
B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 | N/A |
7/8 – 1 | 100 | 80 | 20 | 45 | N/A | |
1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | N/A | |
1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 | N/A |
ASTM A320 Bolt Torque Chart
BOLT DIA | Torque FT-LBS | ||
30% Initial Torque | 70% Torque | 100% Final Torque | |
1/2 | 16 | 36 | 52 |
9/16 | 23 | 53 | 75 |
5/8 | 31 | 73 | 104 |
3/4 | 55 | 129 | 184 |
7/8 | 71 | 166 | 237 |
1 | 107 | 249 | 356 |
1.1/8 | 127 | 297 | 424 |
1.1/4 | 179 | 417 | 596 |
1.3/8 | 186 | 435 | 622 |
1.1/2 | 246 | 574 | 821 |
1.9/16 | 168 | 392 | 560 |
1.5/8 | 191 | 445 | 636 |
1.3/4 | 240 | 561 | 801 |
1.7/8 | 298 | 696 | 994 |
2 | 366 | 853 | 1219 |
2.1/4 | 529 | 1234 | 1762 |
2.1/2 | 733 | 1709 | 2442 |
2.3/4 | 986 | 2300 | 3285 |
3 | 1289 | 3008 | 4297 |
BOLT DIA |
Torque Nm | ||
30% Initial Torque |
70% Torque |
100% Final Torque |
|
1/2 | 22 | 49 | 71 |
9/16 | 31 | 72 | 102 |
5/8 | 42 | 99 | 141 |
3/4 | 75 | 175 | 249 |
7/8 | 96 | 225 | 321 |
1 | 145 | 338 | 483 |
1.1/8 | 172 | 403 | 575 |
1.1/4 | 243 | 565 | 808 |
1.3/8 | 252 | 590 | 843 |
1.1/2 | 334 | 778 | 1113 |
1.9/16 | 228 | 531 | 759 |
1.5/8 | 259 | 603 | 862 |
1.3/4 | 325 | 761 | 1086 |
1.7/8 | 404 | 944 | 1348 |
2 | 496 | 1157 | 1653 |
2.1/4 | 717 | 1673 | 2389 |
2.1/2 | 994 | 2317 | 3311 |
2.3/4 | 1337 | 3118 | 4454 |
3 | 1748 | 4078 | 5826 |
ASTM A320 Bolts and Nuts Latest Edition
ASTM A320 Grade L7 Stud Bolt | ASTM A320 L7M Stud Bolts |
Stainless Steel B8 Threaded Rod | ASTM A320 Stud Bolts Supplier |
SA320 Nuts Exporter | ASTM A320 B8 Stud Bolt |
ASTM A320 L7M Tie Rod | A320 L7M Nuts Manufacturer |
A320 L7M Stainless Steel bolts | ASTM A320 Stud Bolts |
ASTM A320 L7 Lag Bolt Exporter | ASME SA320 L7M Grub Screw |
ASTM A320 Anchor Bolt | A320 L7M Shoulder Bolt |
ASTM A 320 L7 Heavy Hex Bolts | A320 L7 Hex Nut |
ASTM A 320 Eye Bolt Supplier | SS B8 Plow Bolt Distributor |
A320 L7 Hex Nut Supplier | L7M Hanger Bolt |
SS B8 Step Bolt | ASTM A 320 L7 Studs Manufacturer |
ISO Approved ASTM A320 U Bolts | ASTM A320 J Bolt |
Other Types of ASTM A320 Bolts and Nuts
SS ASTM A320 L7 Hexagon Domed Cap Nuts | ASTM A320 Mushroom Head Square Neck Bolts | ASTM A320 L7 Eye Bolts |
ASTM A320 L7 Self Locking Nut | ASTM A320 L7 Finishing Washers | ASTM A320 L7 Structural Bolts |
ASTM A320 Castle Nuts | ASTM A320 Long Bolts | ASTM A320 Hexagon Coupling Nuts |
SS ASTM A320 L7 U Bolts | SS ASTM A320 T-Bolts | ASTM A320 Thread Nylon Nuts |
SS ASTM A320 J Bolts | ASTM A320 Steel Hex Nuts | ASTM A320 Heavy Hex Nuts |
ASTM A320 Step Bolt | ASTM A320 eversible Locknuts | ASTM A320 L7 Anchor Bolts |
A320 ASTM L7 Elevator Bolts | A320 Gr L7 Heavy Hex Bolts | ASTM A320 L7 Countersunk Bolts |
ASTM A320 Threaded Stud Bolts | ASTM A320 L7 Carriage Bolts | ASTM A320 Double Ended Studs |
ASTM A320 T-Head Bolts | ASTM A320 L7 Structural Bolts | ASTM A320 Lag Bolt |
ASTM A320 Stainless Steel Bolt | ASTM A320 Grub Screw | ASTM A320 Machine Bolt |
Countries We Export to
Ubique Alloys Pvt. Ltd. manufactures and exports to various countries such as Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Netherlands, Brazil, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Spain, France, United Kingdom, Indonesia, Israel, Iran, Russia, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia
Cities We Deliver to
Ubique Alloys Pvt. Ltd. manufactures and exports to multiple cities such as Mumbai, Thane, Navi Mumbai, Pune, Pimpri-Chinchwad, Vadodara, Kolkata, Gurgaon, Ahmedabad, Seoul, Hyderabad, Singapore, Abu Dhabi, Tehran, Calgary, Noida, Riyadh, London, Coimbatore, Jakarta, Istanbul, Bangkok, Kuwait City, Sharjah, Muscat, Edmonton, Busan, Mexico City, Doha, New Delhi, Bengaluru, Chennai, Surat, Bhopal, Ulsan, Faridabad, Houston, Dubai, Jeddah, Aberdeen, Cairo, Geoje-si, Perth, Santiago, Chandigarh, Indore, Kuala Lumpur, Rio de Janeiro, Dammam, Melbourne, Madrid, La Victoria, Bogota, Lahore, Los Angeles, Algiers, Chiyoda, Ankara, Ho Chi Minh City, Toronto, Hong Kong, Howrah, Sydney, Ahvaz, Karachi, Rajkot, Brisbane, Petaling Jaya, Ernakulam, Secunderabad, Gimhae-si, Al Jubail, Port-of-Spain, Thiruvananthapuram, Milan, Atyrau, Lagos, Hanoi, New York, Caracas, Vung Tau, Al Khobar, Manama, Montreal, Granada, Courbevoie, Visakhapatnam, Ludhiana, Moscow, Dallas, Haryana, Colombo