Stainless steel for boiler and heat exchanger tubes
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.12 | ||
| Si | - | 0.75 | ||
| Mn | - | 1.00 | ||
| P | - | 0.040 | ||
| S | - | 0.030 | ||
| Cr | 16.00 | 18.00 | ||
| Ni | - | 0.60 | ||
| Mo | - | - | ||
| N | - | - |
Stainless steel for boiler and heat exchanger tubes
| 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) |
|---|---|---|---|---|---|---|
| 117 (≥) | 336 (≥) | 34 | 12 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 |
| 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 |
|---|---|---|---|---|---|---|---|
| 288 (≥) | 445 (≥) | 44 | 33 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 557 | 869 | 331 |
We can customize the production of STS430TB grade, contact us for the best solution.
–sales@specificsteel.com