GB713 Q245R Steel Plates

High-strength, low-alloy steel plate manufactured to the GB 713 standard for boilers and pressure vessels where elevated-temperature performance is required. Q245R is a Chinese low-alloy, high-strength structural steel grade commonly used in welded pressure vessel and boiler fabrication.

Key features

• Standard: GB 713
• Grade: Q245R (pressure-vessel/boiler steel for elevated-temperature service)
• Forms: flat plates and available in coils (coil thickness ≤ 25 mm)

Available sizes

• Thickness: 3 – 150 mm
• Width: 1,220 – 4,200 mm
• Length: 5,000 – 18,000 mm

Typical applications

• Boiler shells
• Pressure vessels and tanks
• Welded structural components operating at elevated temperatures

Related grades available

• Q345R, Q370R, 15CrMoR, 18MnMoNbR, 14Cr1MoR, 13MnNiMoR, 12Cr1MoVR

Notes

• Supplied to GB 713 specification; available in plate and coil forms (coils limited to ≤ 25 mm thickness).
• For specific mechanical or chemical property requirements, inspection certificates, cutting or surface treatment options, request detailed specifications from the supplier prior to ordering.