ASTM A320 L7/ L7m PTFE Threaded Rods/Stud Bolt
Jiaxing Haina Fastener Co., Limited- Material：High Strength Steel
- Type：Round Head
- Connection：Common Bolt
- Head Style：Round
- Standard：DIN, ANSI, GB, JIS
- Grade：8.8
Base Info
- Model NO.：ASTM
- Application：Machinery, Chemical Industry, Environmental, Building
- Finish：PTFE , Xylan
- Available Material：Carbon Steel, High Strength Steel, Stainless Steel
- Surface Finish：PTFE , Xylan
- Class/Grade：3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9
- Transport Package：20-25kg Carton+900kg,Pallet
- Specification：ISO9001: 2008
- Trademark：HNF
- Origin：China
- HS Code：731815
- Production Capacity：500ton,Month
Description
B8 Class 2Up to 3?4 125 100 N/A 12 35 7?8 - 1 115 80 N/A 15 35 11?8 - 11?4 105 65 N/A 20 35 13?8 - 11?2 100 50 N/A 28 45 B8M Class 2 Up to 3?4 110 95 N/A 15 45 7?8 - 1 100 80 N/A 20 45 11?8 - 11?4 95 65 N/A 25 45 13?8 - 11?2 90 50 N/A 30 45
A320 Chemical Properties
A320 Chemical Properties
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% | 0.20 - 0.30% | 2.00 - 3.00% |