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■ Overview
In European specifications EN10216-2,there are all seamless type pipes and tubes grades for high pressure boiler using as
carbon structural steels P195GH,P235GH,P265GH and alloy steels grades 20MnNb6,16Mo3,8MoB5-4,14MoV63,10CrMo5-5,13CrMo4-5,10CrMo9-10.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.880-940 Deg.C
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237
♦ Normalized Heat treatment at Temp.880-940 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 P235GH boiler steel pipes:
|
P235GH |
||||
|
Yield strength (≥Mpa) |
T≤16 |
16<T≤40 |
40<T≤60 |
60<T≤100 |
|
235 |
225 |
215 |
- |
|
|
Tensile strength (≥Mpa) |
360-500 |
|||
►Chemical composition fo P235GH Boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of P235GH |
||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
0.16 |
0.35 |
1.20 |
0.025 |
0.020 |
0.30 |
0.08 |
|
Ni |
Alt |
Cu |
Nb |
Ti |
V |
Cr+Cu+Mo+Ni |
|
0.30 |
0.02 |
0.30 |
0.01 |
0.04 |
0.02 |
0.70 |
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