| Customization: | Available |
|---|---|
| Type: | Seamless |
| Technique: | Cold Drawn |
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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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