T36/Wb36 T91 A213 Grade Alloy Steel Boiler Tube

• Type: Seamless
• Technique: Cold Drawn
• Surface Treatment: Outside Surface with Black Painting
• Usage: Pipeline Transport, Machinery Industry, Chemical Industry, Mining, Special Purpose
• Section Shape: Round
• Length: 0.5m to 12m
• Model NO.: T91 A213 Grade Alloy Steel Boiler Tube
• Transport Package: in Bundles/in Wooden Box or as Your Requirement
• Specification: API, TUV, CE
• Trademark: kingmetal
• Origin: China
• HS Code: 7202110000
• Production Capacity: 1000tons Per Month

Product Description

T36/Wb36 T91 A213 Grade Alloy Steel Boiler Tube

WB36 is a bainitic Ni-Cu-Mo steel micro-alloyed with niobium according German standards DIN WB36 .
 

It is also known as 15NiCuMoNb5-6-4 according to EN 10216-2,ASTM A213 T36 and ASTM A335 P36.

The range of WB36 pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.

15NiCuMoNb5 pipe chemical composition and Mechanical property are shown as figure below:

Material	WB36
C	≤0.17
N	≤0.020
Cr	≤0.30
P	≤ 0.025
S	≤0.01
Mn	0.80~1.20
Mo	0.25~0.50
Ni	1.00~1.30
Cu	0.50~0.80
Si	0.25~0.50
Nb	0.015~0.045

Yield strength( Mpa) at RT ---- 350ºC	Ultimate tensile strength	Uniform elongation A
	Mpa	(%)
430         353	610-760	≥16

Application

This grade is mainly used in high-pressure, medium-temperature feedwater lines (close to 400 °C).

Challenges

WB36 exhibits excellent high-strength properties up to 450 °C. The reduced weight of the feedwater piping components compared with conventional carbon steel allows improved resistance to thermal fatigue and very good heat transfer.

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