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■ Overview
11Cr9Mo1W1VNbBN,when wall thickness above 70mm,these alloy pipes can be done Quenched and Tempered.For all diameters of semaless pipes 11Cr9Mo1W1VNbBN can be done Normalized and Tempered.
■ Full Data
Technical Requirements & Additional Services:
♦ Normalized at Temp.1040-1080 Deg.C and Tempered Heat treatment at Temp.760-790 Deg.C
♦ Flattening test according to GB/T 246
♦ Bending test comply to GB/T 232
♦ Normalized at Temp.1040-1080 Deg.C and Tempered Heat treatment at Temp.760-790 Deg.C
♦ Flattening test according to GB/T 246
♦ Bending test comply to GB/T 232
♦ Expansion test comply to GB/T 242
♦ Microstructure examination comply to GB/T 13298
♦ Issued Orginal Mill test certificate under 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
♦ Microstructure examination comply to GB/T 13298
♦ Issued Orginal Mill test certificate under 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
■ Techicals
►Mechnical property for 11Cr9Mo1W1VNbBN boiler steel pipes:
|
11Cr9Mo1W1VNbBN |
|
|
Yield strength (≥Mpa) |
440 |
|
Tensile strength (≥Mpa) |
620 |
►Chemical composition for 11Cr9Mo1W1VNbBN boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of 11Cr9Mo1W1VNbBN |
||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Alt |
Zr |
B |
|
0.09-0.13 |
0.10-0.50 |
0.30-0.60 |
0.020 |
0.010 |
8.5-9.5 |
0.02 |
0.01 |
0.0003-0.006 |
|
Cu |
Ni |
Mo |
V |
Nb |
N |
Ti |
W |
|
|
0.2 |
0.4 |
0.9-1.1 |
0.18-0.25 |
0.06-0.1 |
0.04-0.09 |
0.01 |
0.9-1.1 |
|
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