1.Hot work die steel H13, 2.ISO9001-2008 3.Excellent toughness and thermal fatigue performance 4.Good abrasion resistanc.. 1.Hot work die steel H13, 2.ISO9001-2008 3.Excellent toughness and thermal fatigue performance 4.Good abrasion resistancHot work tool steel H13 (AISI) Familiar grades: DIN 1.2344, JIS SKD61, GB 4Cr5MoSiV1, 8407 (ASSB) Huayu grade: HY-ZH13A Chemical composition: (%)C: 0.40Si: ...