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Send Message| Style |
Grade |
Standard |
Spec (mm) Coil |
Spec (mm) Plate |
Characteristic |
Application Area |
| Sulfuric acid dew point corrosion resistant steel |
09CrCuSb Q315NS Q355NS |
GB/T4171 Or Technical Agreement |
1.5-19mm | 6-50mm |
This kind of steel mean to add a certain content of alloying elements in steel, when the steel in contact with sulphuric acid type’s gas (such as Discharge waste gas of sulfur steel chimney), to increase below the dew point generated sulfuric acid by SO2, SO3, and H2O corrosion resistance. |
mainly used for power plant chimneys, air preheater, desulfurization equipment, chemical industry coking equipment and tobacco curing barn. |
|
Grade |
Chemical Component /% | |||||||
| C | Si | Mn | P | S | Cr | Cu | Ni | |
| 09CrCuSb | ≤0.10 | ≤0.40 | 0.4-1.0 | ≤0.025 | ≤0.015 | 0.50-1.0 | 0.2-0.5 | 0.1-0.3 |
| Q315NS | ≤0.15 | ≤0.55 | ≤1.20 | ≤0.035 | ≤0.035 | 0.3-1.20 | 0.2-0.5 | - |
| Q345NS | ≤0.15 | 0.55 | ≤1.20 | ≤0.035 | ≤0.035 | 0.3-1.20 | 0.2-0.5 | - |
| Mechanical Property | |||
| Grade |
Yield Strength/MPa |
Tensile Strength/MPa |
Elongation/% |
| 09CrCuSb | ≥300 | ≥410 | ≥22 |
| Q315NS | ≥315 | ≥440 | ≥22 |
| Q355NS | ≥345 | ≥470 | ≥20 |
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