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GB6479 steel pipe is a high-pressure seamless steel pipe for chemical fertilizer equipment (GB6479-2000) is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines with a working temperature of -40~400°C and a working pressure of 10~30Ma .
GB6479 steel pipes are mainly used for straight seam welded steel pipes for mine compressed air, drainage, and shaft discharge gas.
Its representative material is Q235A and B grade steel. GB/T14980-1994 (large-diameter electric-welded steel pipes for low-pressure fluid transportation).
Boiler tubes are mainly used for conveying water, sewage, gas, air, heating steam and other low-pressure fluids and other purposes. Its representative material is Q235A grade steel.
| Grade | C | Si | Mn | P | S | Ni | Cr | Cu | Mo | V | N |
| GB6479 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.025 | 0.015 | 0.25 | 0.25 | 0.2 | 0.15 | 0.08 | 0.008 |
| Grade | Yield Strength (MPa) | Ultimate Tensile Strength (MPa) | Elongation at Break (%) |
| GB6479 | 245 | 410-550 | 24 |
The product name | High quality GB6479 high pressure chemical fertilizer pipe carbon alloy steel seamless steel pipeler |
standard | GB、ASTM、API、JIS |
Outer diameter | 14 - 720 mm |
Ventricular wall thickness | 2-120mm |
material | 6479.10#.20#16Mn.10MoWVNb.12CrMo.15CrMo |
check | GB ISO BV SGS SVG ASTM |
packaging | Waterproof paper and steel tape packaging. Standard export shipping bag. Suitable for all kinds of transportation, or as needed |
Supply capacity | 1000 mt/week |
Hot rolling (extruded seamless steel pipe): round tube billet → heating → piercing → three-roll cross rolling, continuous rolling or extrusion → tube removal → sizing (or reducing) → cooling → billet tube → straightening → quality inspection Wall thickness→hydraulic test (or flaw detection)→marking→storage.
Cold drawn (rolled) seamless steel pipe: round tube blank→heating→perforation→heading→annealing→pickling→oiling (copper plating)→multi-pass cold drawing (cold rolling)→blank tube→heat treatment→straightening→ Quality inspection wall thickness→hydraulic test (flaw detection)→marking→storage.
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Liaocheng Economic and Technological Development Zone, Shandong Province, China
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