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油气输送管线钢
met.
pipe line steel for oil and gas transport
(【技】通常指输送石油和天然气的管线钢。此类钢除要求较高的强度外,特别要求高的塑性、韧性、低的韧脆性转变温度及良好的焊接性能,并特别要求具有优良的抗氢致开裂和硫化物应力腐蚀开裂性能。)
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