One of our long-term clients has placed an order for three specifications of ASTM A320 L7 stud bolts and nuts assemblies, as detailed below: SB2N,A320-L7,UNC,130MM,3/4IN – Stud bolt with 2 nuts, 3/4″ UNC thread, 130mm length, A320 L7 + A194 Gr.7; SB2N,A320-L7,UNC,100MM,5/8IN – Stud bolt with 2 nuts, 5/8″ UNC thread, 100mm length, A320 L7 + A194 Gr.7; SB2N,A320-L7,8UN,320MM,1.1/2IN – Stud bolt with 2 nuts, 1-1/2″ 8UN thread, 320mm length, A320 L7 + A194 Gr.7.
We specialize in manufacturing bolts and nuts. Our product range includes both standard and non-standard fasteners such as bolts, nuts, washers, and studs, meeting GB, DIN, ANSI, BS, and ISO standards. Our bolts and nuts offer excellent mechanical properties and reliable corrosion resistance. They are widely used in high-temperature, high-pressure, and severe industrial environments. We can customize materials and sizes according to customer requirements, if you need any further information or assistance, please feel free to get in touch with us at any time.
Product Descriptions
| Description | Specifications | Length | Size | Quantity | Unit |
| Stud bolt + 2 heavy hex nuts | Stud Bolt Material: ASTM A320 Grade L7 Nut Material: ASTM A194 Grade 7 Design Specs: BS 4882, ASME B18.2.2 Thread: ASME B1.1 SERIE UNC Nuts per Bolt: 2 | 130 MM | 3/4 IN | 360 | Set |
| Stud bolt + 2 heavy hex nuts | Stud Bolt Material: ASTM A320 Grade L7 Nut Material: ASTM A194 Grade 7 Design Specs: BS 4882, ASME B18.2.2 Thread: ASME B1.1 SERIE UNC Nuts per Bolt: 2 | 100 MM | 5/8 IN | 480 | Set |
| Stud bolt + 2 heavy hex nuts | Stud Bolt Material: ASTM A320 Grade L7 Nut Material: ASTM A194 Grade 7 Design Specs: BS 4882, ASME B18.2.2 Thread: ASME B1.1 SERIE 8UN Nuts per Bolt: 2 | 320 MM | 1 1/2 IN | 300 | Set |
ASTM A320 L7 Stud Bolts Chemical Composition
- Carbon: 0.38 – 0.48%
- Manganese: 0.75 – 1.00%
- Phosphorus (max): 0.035%
- Sulfur (max): 0.040%
- Silicon: 0.15 – 0.35%
- Chromium: 0.80 – 1.10%
- Nickel: —
- Molybdenum: 0.15 – 0.25%
ASTM A320 L7 Stud Bolts Mechanical Properties
- Grade: L7
- Diameter: Up to 21⁄2
- Tensile, ksi, min: 125
- Yield, ksi, min: 105
- Charpy Impact 20-ft-lbf @ temp: -150° F
- Elong, %, min: 16
- RA, %, min: 50
ASTM A194 Grade 7 Nut Chemical Composition
- Carbon: 0.37 – 0.49
- Manganese: 0.65 – 1.10
- Phosphorus: 0.035 max
- Sulfur: 0.04 max
- Silicon: 0.15 – 0.35
- Chromium: 0.75 – 1.20
- Molybdenum: 0.15 – 0.25
ASTM A194 Grade 7 Nut Mechanical Properties
- Nominal Size In Inches: 1/4 – 4
- Temperature °F: 1100
- Proof Load Stress, ksi: 80
- Hardness Rockwell: C38
- Material: Medium Carbon Alloy Steel, Quenched and Tempered
A320 L7 Stud Bolts with A194 Gr.7 Nuts Pictures
We specialize in producing A320 L7 studs and A194 Gr.7 nuts, they are made from high-strength alloy steel material, offering reliable performance under 80ksi stress and resisting corrosion in tough environments. like petrochemicals, pressure vessels, and bridge building.
A320 L7 Stud Bolts and Nuts Packages
We use wooden cases to pack A320 L7 stud bolts with A194 Gr.7 nuts. This not only effectively prevents (knocks and impacts) and thread damage during transportation but also has good moisture-proof and rust-proof properties, ensuring the safety of the products during long-distance transportation and storage.
