P235GH (Material No. 1.0345) is a European standard non-alloy heat-resistant carbon steel exclusively designed for high-temperature pressure equipment, fully compliant with EN 10216-2 seamless tube specification for pressure service.
Grade Definition Decoding:
- P = Pressure service steel
- 235 = Minimum yield strength ≥235 MPa at room temperature
- GH = Guaranteed mechanical & creep properties under elevated temperature Manufactured via hot rolling / cold drawing seamless forming without longitudinal welding seams, P235GH seamless pipe delivers uniform wall thickness, outstanding high-temperature creep resistance, stable mechanical performance, excellent weldability and cold forming capacity. It can sustain long-term operation up to 475°C, widely adopted in power plants, petrochemical, boiler manufacturing and industrial pressurized fluid transmission systems
| Item | Available Parameters |
|---|---|
| Outer Diameter (OD) | 21.3mm – 508mm (1/2" – 20"), Schedule 40 / 80 / 160 |
| Wall Thickness (WT) | 3.0mm – 40mm |
| Standard Length | 6m / 12m random length; fixed cut length customized |
| Pipe End Type | Plain end, beveled end (30° bevel), threaded end, socket weld end |
| Surface Finish | As hot rolled, normalized annealed, pickled & bright, 3PE / epoxy anti-corrosion coating |
| Tolerance | OD ±0.75%, WT ±10% (per EN 10216-2 tolerance class) |
| Delivery State | Normalized / Normalized rolled |
- Standard packing: Bundled with steel strips, waterproof plastic film wrapped
- Export customized: Wooden pallet, steel crate, anti-rust oil coating
- Loading: Container / bulk vessel transport, port delivery FOB Tianjin / Shanghai
- Lead time: Stock goods 3–7 days; customized production 10–20 working days
- MOQ: 1 Metric Ton
technical Data
Chemical Composition (Cast Analysis, wt.%, Max)
| Element | C | Si | Mn | P | S | Cr | Cu | Mo | Ni |
|---|---|---|---|---|---|---|---|---|---|
| Content | 0.16 | 0.35 | 1.20 | 0.025 | 0.010 | 0.30 | 0.30 | 0.08 | 0.30 |
Mechanical Properties (Room Temperature, t ≤16mm)
| Performance Index | Standard Requirement |
|---|---|
| Tensile Strength Rm | 360 – 480 MPa |
| Minimum Yield Strength ReH | ≥235 MPa |
| Elongation A | ≥25% |
| Impact Energy KV2 (20℃) | ≥27 J |
Application Fields
1.Power Generation Industry Water wall tubes, superheater tubes, economizer tubes, steam pipeline for industrial & utility boilers
2.Petrochemical & Refinery High-temperature heat exchanger tubes, process pressure piping, reactor auxiliary pipelines
3.Pressure Vessel Manufacturing Pipeline manifolds, header pipes, high-temperature fluid connecting pipes for pressure vessels
4.Industrial Heating Equipment Hot oil furnace pipes, thermal fluid circulation pipelines, steam heating system piping
5.Energy & Chemical Plants High-pressure hot water circulation, gas & steam transmission pipelines under medium-high temperature
FAQ
Q1: What is the equivalent grade of P235GH in Chinese standard?
A: P235GH corresponds to GB/T 713 Q245R boiler & pressure vessel steel, with similar high-temperature pressure bearing performance.
Q2: What's the maximum continuous working temperature of P235GH pipe?
A: Long-term safe service temperature ≤475°C; not recommended for service above 500°C.
Q3: Can you provide customized cutting & processing service?
A: Yes, we support fixed-length cutting, beveling, bending, threading, 3PE anti-corrosion coating and other deep processing as client drawings.
Q4: What test certificates will be provided together with goods?
A: EN 10204 3.1 mill test report with full heat batch data; CE PED certificate, third-party inspection report upon request.
Q5: Is P235GH seamless pipe suitable for hydrogen medium pipeline?
A: Yes, we can supply HIC-tested P235GH pipes for hydrogen service upon special order.
Our address
Rm1406,14th/F No 208, Hongqi Road, Nankai Dist, Tianjin City ,China
Phone Number ( whatsApp/Wechat)
+86 16622033809
alisa@tjshenzhoutong.com
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