15NiCuMoNb5-6-4
15NiCuMoNb5-6-4 (DIWA373, 15NiCuMoNb5, or WB36) is the material developed by mannesman company in Germany, which is used for nuclear power generating units and high parameter thermal power generating units. It is developed by adding Ni Cu Mo Nb alloy elements on the basis of carbon manganese steel. Because the alloy elements such as Ni, Cu, Mo and Nb are added to the steel, it has the effect of fine grain strengthening and precipitation strengthening, thus greatly improving the high temperature strength and permanent strength of the steel, and the addition of Cu does not reduce the permanent plasticity of the steel.
15NiCuMoNb5-6-4 steel is characterized by strength, yield limit is 40% higher than 20g steel, service temperature is 400 ℃, it can be used as high-pressure pipe with pipe wall temperature up to 500 ℃, or as high-temperature and high-pressure components of high parameter thermal power generating units, such as boiler drum, steam water separator, header, steam generator, steam pipe and nuclear power equipment.
Manufacture
15NiCuMoNb5-6-4 (WB36) high pressure boiler tubes are manufactured by seamless process.
15NiCuMoNb5-6-4 (WB36) High Pressure Boiler Tubes Quick Details
Type:Seamless Steel tubes
Technique: Hot rolled or cold drawn
Standard: EN 10216-2
Outside Diameter: 25mm-508mm
Wall thickness: 6mm-35mm
Length: 6000Mm, 12000m or specified length as required.
Type of End-Finish: Plain End, Beveled End, Treaded
Surface treatment: Tubes will be varnished (Outside only) to prevent rust.
Additional Info
Payment Terms:T/ T, LC
Port of Shipment: Tianjin, China
Package:According To Per Customers' Require
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Delivery time: Tubes will be completed within 30 days, and urgent delivery time can be discussed.
Chemical composition
| Grade | C | Mn | Si | P | S | Cr |
| 15NiCuMoNb5-6-4 | ≤0.17 | 0.8-1.2 | 0.25-0.50 | ≤0.03 | ≤0.025 | ≤0.30 |
| Cu | Mo | Ni | Nb | N | ||
| 0.5-0.8 | 0.25-0.50 | 1.00-1.30 | 0.015-0.045 | ≤0.02 | ||
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