Commonly injection mold material

 

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