25MnG Seamless Steel Pipes
This steel of 25MnG high-pressure boiler tubes is mainly used to manufacture subcritical and supercritical pressure boiler water walls and economizers for 300MW and 600MW power generation units.
The chemical composition of 25MnG seamless steel pipe is simple. Except for the high carbon and manganese content, the other contents are very similar to 20G. The yield strength of 25MnG steel is about 20% higher than that of 20G, while the plasticity and toughness are about the same as 20G.
Steel Standard:GB/T 5310
Rolling Type:Hot Rolled,Cold Drawing
Wall Thickness:1.25mm--60mm
Diameter:1/4 inch--36 inch
Length:1000mm-18000mm
Similar Product Name:SMLS steel pipes,boiler steel tubes,seamless steel tubes,seamless circle pipes.
Contact us for price: sales@gneetube.com
Mechnical property for 25Mng steel pipes:
|
25MnG |
|
|
Yield strength (≥Mpa) |
275 |
|
Tensile strength (≥Mpa) |
485-640 |
Chemical composition for 25Mng boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of 25MnG |
|||||
|
C |
Si |
Mn |
P |
S |
Cr |
|
0.22-0.27 |
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 |
- |
- |
25MNG High Pressure Seamless Boiler Tubes
GNEE technical requirements and additional services:
1.Normalizing heat treatment temperature 880-940℃
2. Flattening test according to GB/T 246
3. The bending test complies with GB/T 232
4. The expansion test complies with GB/T 242
5. Metallographic structure inspection complies with GB/T 13298
6.Issuance of original factory test certificate
7. Surface protection: black, varnish, hot dip galvanized, shop primer coating
Gnee company covers an area of 35,000 square meters and has more than 200 employees, including 80 technical staff. We have established an effective and complete quality control and assurance system. The company has also obtained ISO9001 quality system certification.
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FAQ
1.Q.How can I place order?
A: You can contact us by email about your order details, or place order on line.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q.Do you have quality control?
A.Yes, we have got BV.SGS certification.
Hot Tags: 25mng seamless steel pipes, China 25mng seamless steel pipes manufacturers, suppliers, factory, ASTM A192 Boiler Tubes, Military Pipe
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