AWS-5-20ER71T5,AWS-5-20 ER71T5

AWS-5-20ER71T5,AWS-5-20 ER71T5 U32355 U32356 U32357 L13464 L13465 L13466 L13467 L13909 L13899 L13889 L14209 L14199 L14189 L14609 L14599 L14589 S175 S210 S245 S290 S320 S360 S390 S415 U31753 U31754 U32103 U32453 强度、淬透性高，韧性好，淬火时变形小，高温时有高的蠕变强度和持久强度