En10216-2 1.6368 15NiCuMoNb5-6-4 Seamless Steel Pipe

• Type: Seamless
• Technique: Hot Rolled
• Material: Alloy Steel
• Surface Treatment: Black
• Usage: Boiler Pipe, Nuclear Power Generating Units
• Section Shape: Round
• Model NO.: MD-225
• Outer Dimensions: 1"~48"
• Wall Thickness: 6mm ~35 mm
• Length: 3000~12000mm
• Loading Port: Chinese Main Port
• Delivery Time: 7-15 Days Ex Mill
• MOQ: 5 Tons
• Certificate: ISO API
• Transport Package: in Bundle or Customer′s Requirement
• Specification: ISO TUV PED API
• Trademark: KINGMETAL
• Origin: Made-in-China
• Production Capacity: 2000 Tons Per Month

Product Description

EN10216-2 1.6368 15NiCuMoNb5-6-4 seamless steel pipe

15NiCuMoNb5-6-4 (DIWA373, 15NiCuMoNb5, or WB36) alloy 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 ºC, it can be used as high-pressure pipe with pipe wall temperature up to 500 ºC, 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.

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

 


Mechanical properties

Grade	Yield Strength/MPa	Tensile Strength/Mpa	Elongation/%	Hardness/HB	Impact work longitudinal/J			Microstructure
					20ºC	0ºC	-20ºC
15NiCuMoNb5-6-4	≥440	610-780	≥19	≤252	≥95	≥80	≥60	F+B+P

 

Durable strength σ, 15NiCuMoNb5-6-4 (WB36) high pressure boiler tube

Grade	400ºC	420ºC	440ºC	460ºC	480ºC	490ºC	500ºC
15NiCuMoNb5-6-4	373	325	273	210	139	104	69

 
 
Heat treatment

Normalizing or quenching	Temper	Stress relief heat treatment
900-980 ° C air cooling	580-640 ° C air cooling	550-600 ° C air cooling
880-930 ° C oil or water cooling	620-700 ° C air cooling