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Jessop H₄₀
met. 杰索普 F₄₀铁素体耐热钢; ; 杰索普 H₄₀ 铁素体耐热钢
Jessop H40
met. 杰索普H40铁素体耐热钢 (0.25C, 0.4Mn, 0.4Si, 3Cr, 0.5N, 0.5Mo; 0.75 V)