High-pressure boiler tube is a kind of boiler tube, belonging to the category of seamless steel tube. The manufacturing method is the same as that of seamless tube, but there are strict requirements on the steel type used to manufacture steel tube. High-pressure boiler tube is mainly used to manufacture superheater tube, reheater tube, gas guide tube, main steam tube, etc. of high-pressure and ultra-high-pressure boilers.
GB/T3087-2008 -- China National Standard (Seamless Steel Tube for Low and Medium Pressure Boilers)
GB/T5310 -2008-- China National Standard (Seamless Steel Tube for High-pressure Boilers)
ASME SA106-------American Boiler and Pressure Vessel Code
ASME SA210 -- American Boiler and Pressure Vessel Code
ASME SA213 -- American Boiler and Pressure Vessel Code
DIN17175 -- Federal German Industrial Standard High-Pressure Boiler Tube Anti-Use Range
Product Description
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Standard |
ASTM A106, ASTM A53, API 5L Gr.B, DIN17175,DIN1629 |
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Material |
ASTM A106B, ASTM A53B, API 5L Gr.B,ST52, ST37,ST44 SAE1010/1020/1045,S45C/CK45,SCM435,AISI4130/4140 |
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Outer diameter |
13.7mm-609.6mm |
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Wall thickness |
1.5mm-50mm |
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Length |
3m-12m, random or fixed, as the clients' requests |
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Technology |
Hot Rolled |
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Tolerance |
Control with in the standard, OD:+/-1%, WT:+/-5% |
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Advantages |
1.Short delivery time |
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2.Quality assurance |
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3.Competitive price |
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4.Free Sample |
The steel grades used are: high-quality carbon structural steel grades are 20G, 20MnG, 25MnG;
Alloy structural steel grades are 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.;
Rust-resistant heat-resistant steel commonly used 1Cr18Ni9, 1Cr18Ni11Nb high-pressure boiler tubes;
In addition to ensuring the chemical composition and mechanical properties, water pressure tests must be performed on each tube, and expansion and flattening tests must be performed. The steel pipe is delivered in a heat-treated state. In addition, there are certain requirements for the microstructure, grain size, and decarburized layer of the finished steel pipe.
