Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.045 | ||
| S | - | 0.030 | ||
| Cr | 13.50 | 16.00 | ||
| Mo | 1.00 | 1.50 | ||
| Ni | 24.00 | 27.00 | ||
| Al | 0.01 | 0.35 | ||
| V | 0.10 | 0.50 | ||
| Ti | 1.90 | 2.30 | ||
| B | 0.003 | 0.010 | ||
| Pb | - | 0.005 |
Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 498 (≥) | 121 (≥) | 43 | 43 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 498 (≥) | 767 (≥) | 24 | 13 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 222 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 984 | 759 | 533 |
We can customize the production of 286S31 grade, contact us for the best solution.
–sales@specificsteel.com