DONGGUAN MISUNG MOULD STEEL CO.,LTD
DongGuan Mi Sung Mould Steel Co.,ltd
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1.2343 Forged steel block thickness 300mm annealing for hot work die
1.2343 steel Packaging & Delivery
| Packaging Details: | seaworthy packing; 20ft: GW:17.5T; (5.80mX2.13mX2.18m,) 40ft: GW:22T; (11.8mX2.13mX2.18m,) |
| Delivery Detail: | 4~7days |
Specifications
H11 steel material
1.EAF/ESR provide
2.Sample free
3.Black or Bright
4.T: Max:800mm W:205-810mm L:2000-4000mm
Good price 1.2343/H11/SKD6/4Cr5MoSiV/SKT6 steel material
Hot work tool steel 1.2343 Product Description
Specification of h11 steel material
| Round bar | Diameter(mm) | Length (mm) | |
| 20~800 | 300~5800 | ||
| Plate | Thickness(mm) | Width (mm) | Length (mm) |
| Max:800 | 205~800 | 2000~4000
|
Chemical composition of H11/1.2343 steel material
| Country | Steel NO. | C | Si | Mn | Cr | Mo | V | P | S | Ni |
| China GB | 4Cr5MoSiV1 | 0.33~0.43 | 0.80~1.20 | 0.20~0.50 | 4.75~5.50 | 1.10~1.60 | 0.30~0.60 | ≤0.030 | ≤0.030 | 1.40~1.80 |
| USA AISI | H11 | 0.33~0.43 | 0.80~1.20 | 0.20~0.60 | 4.75~5.50 | 1.10~1.60 | 0.30~0.60 | ≤0.030 | ≤0.030 | Cu 0.25 |
| Japan JIS | SKD6 | 0.32~0.42 | 0.80~1.20 | ≤0.50 | 4.50~5.50 | 1.00~1.50 | 0.30~0.50 | ≤0.030 | ≤0.030 | — |
| Germany DIN | 1.2343 | 0.33~0.41 | 0.90~1.20 | 0.25~0.50 | 4.80~5.50 | 1.20~1.50 | 0.30~0.50 | ≤0.030 | ≤0.030 | — |
Characteristic of h11 steel material
H11,is a kind of air cooling and hardening hot work die steel.In normal temperature,it smanifests excellenttoughness,preferable calorific intensity & heat fatigue and determinate abrasive resistance.
Heat treatment
Isothermal annealing:
- Heat to 870÷880°C;
- Furnace cooling to 760°Cand hold at temperature for at least 10 hours;
- Cool by 10°C/h to 720°C;
- Cooling in air.
Stress relieving:
To be carried out after machining and before the final heat treatment.
- Heat to 650÷700°C, hold for 4/6 hours:
- Furnace cooling to 330÷350°C;
- Cooling in air.
Hardening:
- Initial preheating to 350÷450°C;
- Second preheating to 750÷850°C
- Austenitizing at 1010÷1040°Cor at 1080÷1100°C;
- Cooling in air or in oil if large parts.
Quenched hardness: 62÷66 HRC
Tempering:
In the temperature range 150÷300°Cwith minimum holding time 3 h. For parts hardened at 1080÷1100°C, a first tempering will be carried out at 500÷550°Cin order to exploit secondary hardness, followed by a second tempering at 180/300°C.
Appcation of h11 steel material
H11 is always used in making die casing mould for aluminium castings,hot extrusion die and manufacturing punching tools,mandrill, mechanic
