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Carbon Seamless Steel Pipes Hot Rolled Cold Drawn Extrusion For Construction Buildings
| MOQ: | 1 ton |
| Price: | negotiate |
| Standard Packaging: | Standard seaworthy export packing or as customer demands |
| Delivery Period: | 7-15days |
| Payment Method: | T/T,L/C,Western Union |
| Supply Capacity: | 10000tons |
Carbon Seamless Steel Pipes
,Hot Rolled Seamless Steel Pipes
,Cold Drawn hot rolled seamless tubing
Seamless steel carbon steel pipes manufactured through hot rolled, cold drawn, and extrusion processes, specifically designed for construction and building applications.
Grade: 20# (20 steel)
Standards: GB/T 8162, GB/T 8163, GB/T 3087
Characteristics: Approximately 0.2% carbon content with good overall performance in strength, plasticity, and weldability.
- GB/T 8162: Mechanical equipment parts, building structural frames, vehicle chassis components
- GB/T 8163: Low-pressure fluid transportation pipelines (water, gas, oil)
- GB/T 3087: Boiler flue tubes, low-temperature superheater tubes
Grade: Q235 (Grades A/B/C/D)
Standards: Mainly GB/T 8162
Characteristics: Yield strength 235MPa - the most widely used carbon structural steel.
Main Uses: Structural components including building steel frames, bridge supports, engineering machinery structural parts, and guardrails. Generally not used for fluid pressure pipelines.
Grade: 45# (45 steel)
Standard: GB/T 8162
Characteristics: Contains approximately 0.45% carbon (medium carbon steel). After heat treatment (quenching and tempering), achieves excellent mechanical properties with high strength and toughness.
Main Uses: Core material in machinery manufacturing for heavy-load components such as shafts, gears, connecting rods, piston rods, and hydraulic cylinders. Not used for pipeline transportation.
Grade: 20G (G stands for "Boiler")
Standards: GB/T 3087 (Low and Medium Pressure), GB/T 5310 (High Pressure)
Features: Optimized from 20 steel with strict requirements for chemical composition, grain size, and mechanical properties to ensure excellent heat resistance and long-term strength.
Main Applications: Specifically designed for superheater tubes, reheater tubes, water-cooled wall tubes, economizer tubes, and steam pipes in boiler equipment. Key material in power and heating industries.
Packing Details: Export standard package, bundled or as required.
Delivery Time: According to order quantity.
Shipping Methods:
- By sea (Container or Bulk)
- By air or express for small size samples
| Container Type | Dimensions |
|---|---|
| 20ft GP | 5.8m (length) × 2.13m (width) × 2.18m (height) |
| 40ft GP | 11.8m (length) × 2.13m (width) × 2.18m (height) |
| 40ft HG | 11.8m (length) × 2.13m (width) × 2.72m (height) |
