Injection Mold China Material Reference
Plastic Die steel module (cavities, slider, inclined top, inserts, etc.) :
No any requirement of mould, the cheapest or with few: 45 # (C1045 CK40 S45C his standard), 50 # (C1045 CK53 S50C jis standard)
General requirements: the pre-hardened plastic Die steel P20 (P20 1.2311 din 618 Swedish 3 cr2mo GB)
High demand mould: 718 super pre hard plastic Die steel (P20 + Ni 1.2738 din 718 Swedish cr2nimo 3 GB)
More demanding mould: 738 cr2nimn mo (4 GB) mold to be polished into a bright luster: NAK80 ni3 (P21H NAK80 Japanese standard 12 GB) mirror plastic die steel corrosion resistant plastic mold: use type plastic injection molding has corrosive gas corrosion of steel is used when: M300 corrosion resistant steel (Austria) 3 cr17mo (GB), need to be polished mirror to use
S136H corrosion resistant mirror steel (420, 1.2083, 3 cr13 GB standard S136H Sweden)
Die set:
The general minimum requirements: 45 # (C1045 CK40 S45C jis standard)
Commonly used: 50 # (C1045 CK53 S50C jis standard)
Ordinary requires large formwork: 55 # (C1045 CK56 S55C jis standard GB)
High demand, large formwork: GS638 (P20 GS638 42 CrMo jis standard GB)
Chinese injection mold and mold making Accessories:
Guide pillar: 20 # (S20C) or 20 mn2b (SMn420), treatment: carburizing and quenching, processing hardness greater than or equal to 55 HRC T8A, T10A, treatment: surface quenching, processing hardness is less than or equal to 45 # 55 HRC processing: tempering, surface quenching, and low-temperature tempering, hardness is greater than or equal to 55 HRC after processing
Guide bush:
H62 brass or bronze
Bush: 45 #, 50 #, 55# treatment: surface quenching, hardness is greater than or equal to 55 HRC
Pushrod, thimble, pull rods, such as T8, T8A, T10, T10A processing: quenching and low-temperature tempering, the hardness is greater than or equal to 55 HRC
45 #, 50 #, 55# processing: quenching, hardness is greater than or equal to 45 HRC
All kinds of plate material: 45 #, 50 #, 40 cr (conditioning), structural steel Q235 ~ Q275, the large plate can be used in injection mold china material selection: ductile iron
