Astm A193 Grade 8R Bolts Specification
Astm A193 Grade 8R Bolts Properties
| Chemical Properties | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cr | Mo | Ni | V | N | Cb+Ta |
| 0.06 Max | 1.00 Max | 4.0-6.0 | 0.045 Max | 0.030 Max | 20.5-23.5 | 1.50-3.00 | 11.5-13.5 | 0.10-0.30 | 0.20-0.40 | 0.10-0.30 |
| Mechanical Properties | ||||
|---|---|---|---|---|
| Yeild strength | Tensile strength | Elong | Reduction | Hardness |
| Mpa | Mpa | % | % | HRC |
| min | min | min | min | max. |
| 380 | 690 | 35 | 55 | 271 |
| Heat Treatment | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Carbide Solution Treated. | |||||||||
| Equivalent Designation | ||||
|---|---|---|---|---|
| UNS S20910 | ||||
| EN number 1.4547 | ||||
| EN name X1CrNiMoCuN20-18-7 | ||||
| W.Nr. 1.4529** | ||||
| SS 2378* | ||||
| AFNOR Z1 CNDU 20.18.06AZ* | ||||