P 122钢具有较高的热稳定性，满足1000 MW超超临界机组高温高压蒸汽的要求，但是其可焊性较差。

P122 steel has high thermal stability, can meet the requirements of high temperature and high pressure steam for 1000mw ultra supercritical units, but has poor weldability.

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与传统桥梁用钢相比，高性能钢(HPS)在强度、可焊性、断裂韧性、延性和耐候性方面都有很大的改善。

Compared with conventional structural steels used in Bridges, high performance steel (HPS) provides higher strength, improved weld ability, enhanced fracture toughness and weathering characteristics.

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可焊材料：低碳钢、高强度钢、中碳钢，低合金钢。

Weldable materials: low carbon steel, high-strength steel, medium-carbon steel, low-alloy steel.

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