Boron Steel wire rods
Boron Steel Wire Rods.
Boron steel wire rods are used in primarily in cold forging of nuts and bolts as it has got good forgenability properties. it has wide acceptance in customer base as it reduces the heat treatment cost before forging.
Grade Specifications
| TYPES OF STEEL | CHEMICAL COMPOSITION (%) | USED FOR | |||||||||
| HIGH TENSILE FASTENERS / BORON STEEL | C | Mn | Si | Cr | S(Max) | P(Max) | B | Mo | Pb | Ni |
|
| AISI 10B21 | 0.18 / 0.23 | 0.80 / 1.10 | 0.30 max | 0.10 / 0.20 | 0.03 | 0.03 | 0.0005 / 0.003 | – | – | – | 8 Grade Nuts, |
| 8.8 Grade Bolts & other Fasteners | |||||||||||
| AISI 15B25 | 0.23 / 0.28 | 0.90 / 1.30 | 0.30 max | 0.10 / 0.20 | 0.03 | 0.03 | 0.0005 / 0.003 | – | – | – | 8.8 Grade Bolts, Rivets, Screws & Other Fasteners |
| DIN 19MnB4M | 0.20 / 0.25 | 0.80 / 1.10 | 0.15 / 0.30 | 0.30 / 0.40 | 0.03 | 0.03 | 0.0006 / 0.003 | – | – | – | Alloy Chains |
| AISI 15B41 | 0.36 / 0.44 | 1.35 / 1.65 | 0.15 / 0.30 | 0.10 / 0.20 | 0.03 | 0.03 | 0.0006 / 0.003 | – | – | – | 10.9 Grade Fasteners |
