SKD11
C1.4~1.6
Si0.4max
Mn0.6max
P0.03max
S0.03max
Mo0.8~1.2
Cr11~13
W0
V0.2~0.5
Nhiệt độ tôi 1225~1235 tôi bằng không khí làm lạnh, nhiệt độ ram 180 độ trong không khí
Độ cứng đạt được 58 HRC trở lên
Sorry tớ không tìm thấy các gh bền trong sổ tay.
Để tìm trên mạng hoặc tra sổ tay thì X12M là 1 trong các tên sau
SKD11(Nhật) 1.1260(Anh) Cr12MoV (Trung Quốc), X165CrMoV46(Đức)....
Đây là thông tin từ mạng
Model Number SKD11
Steel Grade Cr12MoV
Dimensions 2-200mm
Content of elements %
C:1.4~1.6
Si≤0.4
Mn≤0.6
Cr:11~13
Mo:0.5~1.2
V:0.2~0.5
S<=0.03
P<=0.03
Ni<0.5
tensile strength was 1600-1800 Mpa transeverse rupture strength was 3400-3600 MPa, impact value was 23-32 KJ/m'2' and fatigue strength was 456 MPa. (author abst.)
Brinell hardnessHBW≤255~207
Quenching temperature950~1000
Refrigerantoil
Rockwell hardness HRC≥58
Application:
Hardenability,the hardness, strength and toughness after quenching and tempering are higher than Cr12.
The diameter below 300~400mm can be fully hardening, and has small quenching distortion, but it has worse pyroplastic.It is mainly used to produce the moulds and tools which have large section, complicated shape and high working load. For example, piercing die, comb dies, coining die, thread rolling die, standard tools and measuring tools.