Applications
Typical applications include die casting dies for aluminium, magnesium and zinc, extrusion dies for aluminium and brass, liners, mandrels, pressure pads, followers, bolsters, die cases, die holders and adaptor rings for copper and brass extrusion. H13 steel is used to produce hot stamping and press forge dies, split hot heading dies, gripper dies, hot punching, piercing and trimming tools. Other applications include plastic moulds, shear blades for hot work and hot swaging dies.
Main steel grades
China (GB) | USA (AISI) | Japan (JIS) | Germany
| Characters | Main Applications |
4Cr5MoSiV1 | H13 | SKD61 | 1.2344 | strong thermal strength and hardness, good wear resistance and toughness | Hot extrusion die, die casting die and mould forging dies for making aluminum, magnesium and zinc alloy, electronic plastic mould |
5CrMnMo | H21 | SKT5 | Heat resistance, toughness, plasticity and heat-resisting fatigue performance generally | Magnesium, zinc, aluminum alloy extrusion dies for high stress, high abrasion resistance and no impact load at high temperatures. | |
4Cr3Mo3SiV | H10 | SKD7 | 1.2365 | Good hardenability, high toughness, high hardness, thermal strength and abrasion resistance | Suitable for manufacturing hot extrusion die, hot stamping die, forging and plastic die, mainly used for aluminum alloy die casting die |
5CrNiMo | L6 | SKT4 | 1.2713 | Better thermal strength, toughness and high hardenability than STK5 | used for a variety of large and medium-sized forging hot extrusion die |
4Cr5MoSiV | H11/H12 | SKD6 | 1.2343 | strong thermal strength and hardness, good wear resistance and toughness | used for a variety of large and medium-sized forging hot extrusion die |
Steel brands JEF, BÖHLER, ASSAB, DAIDO STEEL, DONGBEI SPECIAL STEEL, TIANGONG, XINGCHENG, WUGANG STEEL
STEEL GRADE | AISI | GB/T | EN | Hardness | C | Si | Cr | Ni | Mn | Mo | V | W |
LKM2343 | HII | SKD6 | 1.2343 | Annealed to HB225(max) | 0.36 | 1.0 | 5.0 | - | 04 | 1.2 | 0.35 | - |
LKM2343 ESR | HI1 ESR | SKD6 ESR | 1.2343 ESR | Annealed to HB225(max) | 0.36 |
1.0 |
5.0 |
- |
0.4 |
1.2 |
0.35 |
- |
M2344mod HH | H13 REI | SKD61 IMPROVED | 1.2344 IMPROVED | Pre-hardening to HRC37-43 | reference the mill certification | |||||||
LKM2344 | H13 | SKD61 | 1.2344 | Annealed to H225(max) | 0.38 |
1.0 |
5.0 |
- |
0.4 |
1.3 |
1.0 |
- |
LKM234ESR | H13 ESR | SKD61ESR | 1.2344ESR | Annealed to H225(max) | ||||||||
Heat treatment
steel data sheet is a good source of heat treatment parameters. However, factors such as mould size, and geometry mould dimension and mould shape can affect heat treatment parameters, where adjustments have to be made in order to achieve the best heat treatment quality. Besides the optimised heat treatment parameters, advance and reliable heat treatment facilities are also important to the heat treatment quality. For example, if the heat treatment furnace cannot reach a desire vacuum pressure during quenching, de-carbonisation can occur on the mould steel surface at such high processing temperature, resulting in poor mould surface quality and increasing risk of mould cracking.
With our extensive knowledge on steels, experienced engineers and technicians, as well as advanced heat treatment facilities, LKM promises to provide customers the most reliable high quality heat treatment services.
Heat treatment services available:
Vacuum quenching, tempering
Conventional quenching, tempering
Normalising
Stress relief treatment
Annealing
Facilities:
Vacuum oven able to handle mould dimensions up to: 900mm x 900mm x 1200mm
Vacuum oven able to handle mould weight up to: 2500kg
Vacuum oven able to withstand cooling pressure up to: 15bar
Our company supply many different kinds of mould steel in order to supply many different client's requirement for special machining dies. If you couldn't decide the exactly steel grade from the technical datas, pls not to hesitate to contact us for an better expertise advices or ask for small examples .
If you have any questions or request, pls not to hesitate to emailinfor@atssmm.com or inquiry@atssmm.com.
Wish our suitable steel mould could satisfy your requirement.
Wish our professional services could help you choose the suitable materials effienctly.
