Carbon Steel Pipe
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Standard: ASTM A53, API 5L, EN 10219, GB/T 3091
Material: Q195, Q235, Q345, S235JR, S355JR
Type: Seamless / Welded (ERW / LSAW / SSAW)
OD: 10.3mm – 2448mm
WT: 0.8mm – 80mm
Length: 3m / 6m / 12m or customized
Surface: Black / Galvanized / Varnished / 3PE
Ends: Plain / Beveled / Threaded
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Description
Introduction
Carbon steel pipe is the most common type of steel pipe used in industrial applications. It contains carbon as the principal hardening element and is widely used for transporting water, oil, gas and for structural purposes. Our carbon steel pipes are manufactured to international standards with strict quality control, including NDT testing, hydraulic testing and dimensional inspection.
Chemical Composition
| Grade | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Q235 | 0.14-0.22 | 0.30 max | 0.30-0.65 | 0.045 max | 0.050 max |
| Q345 | 0.12-0.20 | 0.20-0.55 | 1.00-1.60 | 0.045 max | 0.045 max |
| S235JR | 0.17 max | – | 1.40 max | 0.035 max | 0.035 max |
Mechanical Properties
| Grade | Yield (MPa) | Tensile (MPa) | Elongation (%) |
|---|---|---|---|
| Q235 | 235 min | 375-460 | 26 min |
| Q345 | 345 min | 470-630 | 22 min |
| S235JR | 235 min | 360-510 | 26 min |
Application
- Oil & Gas Transmission Pipelines
- Water & Sewage Pipeline Systems
- Structural & Building Construction
- Mechanical & Engineering Equipment
FAQ
Q: What is your MOQ?
A: Usually 5 tons per size. Sample orders are acceptable.
Q: What is your delivery time?
A: Stock items within 7 days. Custom orders 15-30 days.
Q: Can you provide custom sizes?
A: Yes, we accept OEM orders with customized OD, WT, length and surface.
Q: What certificates do you provide?
A: MTC, API 5L, ISO 9001, SGS and third-party inspection.
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