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DavidFirst time we import a big project from China, excellent for service And really professionnal. My goods have been received, the products are not damaged at all.The quality and workmanship are very good, the materials are also very good, I am very satisfied. recommand them!
STD Gb 3087 Grade 10 Seamless Boiler Tubes Carbon Steel

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xProduct Name | Carbon Steel Pipe | Standard | GB 3087 |
---|---|---|---|
Grade | GB 3087 Grade 10 | Type | Seamless Pipe(SMLS) |
Thickness Schedule | STD, 40, XS, 80, XXS, 160 | Pipe End | Plain End,Beveled End,Treaded |
High Light | gb 3087 grade 10 seamless boiler tubes,std seamless boiler tubes,gb 3087 grade 10 cs seamless pipe |
GB 3087——Seamless steel tube for low and medium pressure boilers
GB 3087 standard is applicable to the manufacture of high-quality carbon structural steel hot-rolled (extruded, expanded) and cold drawn (rolled) seamless steel tubes for various structural low-pressure and medium-pressure boilers and locomotive boilers.
WORKING CONDITION
GB3087 STEEL PIPE MECHANICAL PERFORMANCE
Standard | Grade | Chemical Composition(%) | |||||||
C | Si | Mn | P | S | Cr | Cu | Ni | ||
GB3087 | 10 | 0.07~0.13 | 0.17~0.37 | 0.38~0.65 | ≤0.030 | ≤0.030 | 0.3~0.65 | ≤0.25 | ≤0.30 |
mechanical properties:
Standard | Steel pipe | Wall thickness(mm) | Tensile strength(MPa) | Yield Strength(MPa) | Elongation |
GB3087 | 10 | / | 335~475 | ≥195 | ≥24 |
ALLOWABLE DEVIATION OF OUTER DIAMETER AND WALL THICKNESS
Type of steel pipe | Outer diameter(mm) | Tolerance | ||
ordinary | advanced | |||
Hot rolled tube | OD | ≤159 | ±10%(min±0.50mm) | ±0.75%(min±0.40mm) |
>159 | ±1.0% | ±0.90% | ||
WT | ≤20 | +15.0%(min+0.45mm) | ±10%(min±0.30mm) | |
-12.5% -0.35mm) | ||||
>20 | ±12.5% | ±10% | ||
OD≥351 | ±15% | |||
Cold drawn tube | OD | 10~30 | ±0.40mm | ±0.20mm |
>30~50 | ±0.45mm | ±0.25mm | ||
>50 | ±1.0% | ±0.75% | ||
WT | 1.5~3.0 | 15% | ±10% | |
-10% | ||||
>3.0 | 12.50% | ±10% | ||
-10% |
PROCESS PERFORMANCE
Test:
- Chemical composition verification test
- hydrostatictest
- Tensile test
- Notched impact test
- Yield strength test
- Ring test
- Nondestructive testing