Grade P250GH is a normalized, hot‑rolled boiler/pressure‑vessel steel engineered for elevated‑temperature service (suitable for many applications up to about 450 °C). It is supplied primarily as hot‑rolled rods/bars and is commonly used for parts and subassemblies of pressure equipment where good strength, ductility and impact resistance at moderate elevated temperatures are required.
Key features
- Designed for pressure‑equipment components exposed to elevated temperatures (up to ~450 °C)
- Supplied mainly as normalized, hot‑rolled rods/bars
- Good combination of tensile strength, yield strength and ductility
- Suitable for manufacturing bolts, nuts, flanges, pipe joints and other pressure‑vessel parts
Typical mechanical properties (by cross‑section / diameter)
-
Dimensions < 50 mm
- Tensile strength (Rm): 410–540 MPa
- Yield strength (Rp0.2): > 250 MPa
- Elongation (A): > 25%
-
Dimensions 50–100 mm
- Tensile strength (Rm): 410–540 MPa
- Yield strength (Rp0.2): > 240 MPa
- Elongation (A): > 25%
-
Dimensions 100–150 mm
- Tensile strength (Rm): 410–540 MPa
- Yield strength (Rp0.2): > 230 MPa
- Elongation (A): > 25%
-
Impact energy: KV at 20 °C > 47 J
Availability and supply form
- Typically offered as hot‑rolled rods/bars in a range of diameters (as indicated above)
- Supplied in the normalized condition to stabilize mechanical properties for elevated‑temperature use
Applications
- Pressure vessel components and shells
- Flanges, bolts and nuts for high‑temperature service
- Pipe fittings and joints for boilers and power equipment
- Other structural parts in steam, power and process equipment where elevated‑temperature strength and toughness are required
Inspection & documentation
- Buyers should request mill test certificates (chemical and mechanical), heat treatment records and any required nondestructive test reports to verify material conformity for pressure‑equipment applications.
If you need specific diameter ranges, mill certificates, delivery condition details or machining/welding guidance for P250GH stock, please request those specifications so we can confirm availability and provide a quote.
Product Details
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