+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
Xinsteel keeps new stock of GB/T5310 specifications grade 20mng seamless steel pipes,20mng seamless steel tubes,20mng boiler steel pipes,20mng boiler steel tubes with varies wall thickness and nominal diameters.These carbon steel pipes are mainly used in Steam Boilers,Power Generation,Fossil Fuel Plants,Electric Power Plants,Industrial Processing Plants,Cogeneration Facilities.
■ Full Data
Technical Requirements & Additional Services:
♦ Normalized Heat treatment at Temp.880-940 Deg.C
♦ Flattening test according to GB/T 246
♦ Bending test comply to GB/T 232
♦ Normalized Heat treatment at Temp.880-940 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 20Mng boiler steel pipes:
|
20MnG |
|
|
Yield strength (≥Mpa) |
240 |
|
Tensile strength (≥Mpa) |
415-560 |
►Chemical composition for 20Mng boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of 20MnG |
|||||
|
C |
Si |
Mn |
P |
S |
Cr |
|
0.17-0.23 |
0.17-0.37 |
0.70-1.00 |
0.025 |
0.015 |
0.25 |
|
Cu |
Ni |
Mo |
V |
Ti |
Zr |
|
0.20 |
0.25 |
0.15 |
0.08 |
- |
- |
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