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■ Overview
Xinsteel stockholder EN10216-2 specifications grade 20MnNb6 seamless steel pipes,20MnNb6 seamless steel tubes,20MnNb6 boiler steel pipes,20MnNb6 boiler steel tubes.These tubes and pipes shall be passed by hydrostatic test or electromagnetic test for leak tightness.
■ Full Data
Technical Requirements & Additional Services:
♦ Normalized Heat treatment at Temp.900-960 Deg.C
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237
♦ Normalized Heat treatment at Temp.900-960 Deg.C
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237
♦ Drift expanding test comply to EN 10234
♦ Impacting test comply to EN 10045-1
♦ Issued Orginal Mill test certificate under EN10204 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
♦ Impacting test comply to EN 10045-1
♦ Issued Orginal Mill test certificate under EN10204 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
■ Techicals
►Mechnical property for 20MnNb6 boiler steel pipes:
|
20MnNb6 |
||||
|
Yield strength (≥Mpa) |
T≤16 |
16<T≤40 |
40<T≤60 |
60<T≤100 |
|
355 |
345 |
335 |
- |
|
|
Tensile strength (≥Mpa) |
500-650 |
|||
►Chemical composition fo 20MnNb6 Boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of 20MnNb6 |
|||||||
|
C |
Si |
Mn |
P |
S |
Alt |
Cu |
Nb |
|
0.22 |
0.15-0.35 |
1.0-1.5 |
0.025 |
0.020 |
0.060 |
0.30 |
0.015-0.10 |
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