vânzareLA CALDţeavă去饭店碳/桶API 5L pentru汽油对注视自然漆,folosind 1.城市:API 5L GR。B,A106 GR。B,COMBINATE A53 GR。B,A179,2. Dimensiune:1/4“-24inch FARAsudură,24”-48“weled 3.标准:API 5L,COMBINATE ASTM A53,A106 ASTM,ASTM A179,BS1387 4. Certificare:ISO9001,SGS,API-ul,BV,PED,CERTIFICAT DE MOARA 5 compoziţii chimice de API - 5L stee tevi compozitia Standard otel clasa chimica, % Rezistența la tracțiune, MPa curgere, Alungirea MPa, % C Mn P S MAX MIN API - 5L B 0.27 1.15 0.03 0.03 413 241 21.5-29.5 X42 0.29 1.25 0.03 0.03 413 289 21.5-29.5 X46 0.31 1.35 0.03 0.03 434 317 20.5-28.5 X52 0.31 1.35 0.03 0.03 455 358 19.5-27 X56 0.26 […]