GB/T 713 Q345R is a low-alloy, high-strength steel grade specified for use in pressure vessels and boilers where elevated-temperature performance is required. Supplied to the GB 713 series standard, these plates are produced by hot rolling and are intended for shells, inner tubes, flanges, tube plates and other pressure-containing components.
Key features
- Conforms to GB/T 713 pressure-vessel plate requirements for Q345R grade
- Typical applications: boilers, pressure vessels, heat exchangers, multi-layer containers and other pressure-retaining structures
- Available thickness: 3–150 mm (coils up to 25 mm)
- Available width: 1,220–4,200 mm
- Available length: 5,000–18,000 mm
- Commonly supplied hot-rolled; other delivery conditions and machining/fabrication services can be arranged on request
- Alternative/related grades available: Q245R, Q370R, 15CrMoR, 18MnMoNbR, 14Cr1MoR, 13MnNiMoR, 12Cr1MoVR
Quality and ordering
Plates are produced for pressure-vessel use and can be supplied with standard mill documentation in accordance with GB/T requirements. Additional inspection, testing (non-destructive testing, mechanical/impact testing) and certification options are available on request to meet project or regulatory specifications. Specify required grade, thickness, width, length, delivery condition and any testing/certification needs when requesting a quotation.