Selection of common steel materials and internal mold materials
1. Common steel
1》. Ordinary steel： Sweden 618 Germany 638 United States P20 pre-hard HRC28-32.
2》. Pre-hardened high-quality steel： Sweden 718H Germany 738 Austria M238 pre-hard HRC31-34.
3》. Pre-hardened high hardness mirror steel： Japan NAK55 NAK80 pre-hard HRC37-43.
4》. Pre-hardened anti-corrosion mirror steel: Sweden S136H pre-hard HRC32-34.
5》. Anti-corrosion mirror steel: Sweden S136 United States 420 Quenching hardness HRC50-52
6》. Die-casting steel: Sweden 8407. Germany 2344. Austria W302 .Japan Hitachi FDAC.USA H13 .Japan SKD61 Hardened hardness , HRC48-52 8407 Used for quenching HRC43±2° of moving parts, and then need to nitriding
7》.Oil Steel : United States 01 ,Sweden DF-2 Quenching ,Hardness HRC54-568. Toughness High Chromium Steel (for fiber material, good wear resistance) Sweden XW-41, XW-42, Japan Tatung DC53, United States D2, Japan SKD11 Quenching ,Hardness HRC56-60 .
8》. Toughness high chromium steel (better wear resistance) United States M2. Japan SKH9 (SKH51). Quenching hardness HRC65-68
2. The selection of inner mold steel is divided by mould life:
1>.Testing mold: The life of the general test mold is 1000 to 50000. Usually the steel with cheaper price, such as 45#. 1050, S55C, 1730, etc., is used. At the same time, the appearance cannot have too high requirements.
2> .100,000 cycles or less low-volume mold: use ordinary steel, such as 638, P20, 718,
3>. 30-50 million times: use pre-hardened steels such as NAK80, 738, etc.; acid materials use S136H or S136, 8407 after quenching
4>.80-100 million times: The guide bushing of the mold blank cooperates with H7/f6, selects S136, 8407, quenches HRC50-52
5>. 2 Million times: mold embryo hardness> 35 degrees, guide column guide sleeve with H7/g6, use XW-42, M2, SKD11, quenching hardness above HRC54
Asia Billion is a high quality China injection mould tooling suppliers, if you have any question for your project , please contact us freely , we will be your solid support for your new project development.