5310 seamless steel tubes are high-quality carbon or alloy steel pipes manufactured to GB 5310 standards for high-pressure boilers, with tensile strength of 490–640 MPa and yield strength above 245 MPa. They provide excellent heat resistance up to 580 °C, making them ideal for superheaters, reheaters, and high-temperature steam pipelines.
Product Parameters
|
Parameter |
Data |
|
Applicable Standard |
GB 5310 (Seamless steel tubes for high-pressure boilers) |
|
Material Grades |
Typical grades include 20G, 20MnG, 25MnG, 15CrMoG (carbon/low-alloy steel) |
|
Outer Diameter Range |
Approx. 6 mm to 914 mm (custom sizes up to ~1200 mm possible) |
|
Wall Thickness Range |
Approx. 1 mm to 30 mm (or higher in special orders) |
|
Chemical Composition (Example 20G) |
C 0.17-0.24 %, Si 0.17-0.37 %, Mn 0.35-0.65 % |
|
Length / Delivery Condition |
Typical lengths 4–12 m, hot-rolled or normalized and tempered |
|
Key Features |
High strength, high pressure resistance, seamless construction, reliable in high-pressure boiler and pipeline service |
|
Common Applications |
High-pressure boiler tubes, superheaters, reheaters, power plant piping, high-load pipelines |
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