Astm A193 Grade B7M Bolts Specification
Astm A193 Grade B7M Bolts Properties
| Chemical Properties | |||||
|---|---|---|---|---|---|
| C | Si | Mn | P | S | |
| 0.37-0.49 | 0.15-0.35 | 0.65-1.10 | 0.035 Max | 0.040 Max | |
| Heat Treatment | ||||||
|---|---|---|---|---|---|---|
| Hardened @850°C & Tempered @650°C. | ||||||
| Equivalent Designation | ||
|---|---|---|
| UNS | ||
| EN number 1.4547 | ||
| EN name X1CrNiMoCuN20-18-7 | ||
| W.Nr. 1.4529** | ||
| SS 2378* | ||
| AFNOR Z1 CNDU 20.18.06AZ* | ||
| Mechanical Properties | ||||
|---|---|---|---|---|
| Yeild strength | Tensile strength | Elong | Reduction | Hardness |
| Mpa | Mpa | % | % | HRB |
| min | min | min | min | max. |
| 550 | 690 | 18 | 50 | 235 |
| Heat Treatment | ||||||
|---|---|---|---|---|---|---|
| Hardened @850°C & Tempered @650°C. | ||||||
| Equivalent Designation | ||
|---|---|---|
| UNS | ||
| EN number 1.4547 | ||
| EN name X1CrNiMoCuN20-18-7 | ||
| W.Nr. 1.4529** | ||
| SS 2378* | ||
| AFNOR Z1 CNDU 20.18.06AZ* | ||