20G seamless steel pipe is a high-quality carbon structural steel, boiler material, the carbon content of 0.17-0.24%, tensile strength of 410Mpa, yield point 230-250Mpa.
Is our main production of steel, we can provide 20G Seamless pipe with high quality and competitive price. Here to introduce you to our 20G seamless pipe basic chemical properties and mechanical properties.
20G is the steel material of GB 5310- 2008. GB 5310- 2008 standard is applicable to seamless tubes for making steam boiler whose pressure is high or higher and seamless tubes used as pipelines.
| Chemical elements | Data |
|---|---|
| Carbon | 0.17-0.24 |
| Silicon | 0.17-0.37 |
| Manganese | 0.70-1.00 |
| Phosphorus(max) | 0.03 |
| Sulfur(max) | 0.03 |
| Chromium(max) | 0.25 |
| Molybdenum(max) | 0.15 |
| Cuprum(max) | 0.2 |
| Nickel(max) | 0.25 |
| Vanadium(max) | 0.08 |
Mechanical Properties of 20G：
| Properties | Data |
|---|---|
| Yield Strength (Mpa) | ≥415 |
| Tensile Strength (Mpa) | 240 |
| Elongation (%) | 22 |
| W.T.(S) | Tolerance of W.T. | |
|---|---|---|
| <3.5 | +15%(+0.48mm min) | |
| -10%(+0.32mm min) | ||
| 3.5-20 | +15%,-10% | |
| >20 | D<219 | ±10% |
| D≥219 | +12.5%,-10% | |
GB5310 20G boiler steel pipe Other Name
GB5310 20G boiler steel pipe, 20G boiler steel pipe, 20G boiler pipe
Delivery Condition:
Annealed, Normalized, Normalized and Tempered
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.
Surface treatment:
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Tubing shall be made seamless, plain or upset and coupling with high-seal connections. Coupling-free connections are possible.
Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.
Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.
