Astm A193 Grade B8MLCUN Bolts Specification
Astm A193 Grade B8MLCUN Bolts Properties
| Chemical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | N |
| 0.020 max | 0.80 Max | 1.00 Max | 0.030 Max | 0.010 Max | 19.5-20.5 | 6.0-6.5 | 17.5-18.5 | 0.50-1.00 | 0.18-0.22 |
| Mechanical Properties | ||||
|---|---|---|---|---|
| Yeild strength | Tensile strength | Elong | Reduction | Hardness |
| Mpa | Mpa | % | % | HRC |
| min | min | min | min | max. |
| 240 | 550 | 30 | 40 | 223 |
| Heat Treatment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Carbide Solution Treated. | ||||||||
| Equivalent Designation | |||
|---|---|---|---|
| UNS S31254 | |||
| EN number 1.4547 | |||
| EN name X1CrNiMoCuN20-18-7 | |||
| W.Nr. 1.4529** | |||
| SS 2378* | |||
| AFNOR Z1 CNDU 20.18.06AZ* | |||