P20 C45 D2 H13 Flat Bar 1.2344 / H13 / SKD61 Hot Work Tool Steel / Steel Block / Round Bar for Die Casting Dies
- $1125.00 / >=2 pieces
- 2 pieces
- Wuxi Longchao Metal Products Co.,ltd.
- Jiangsu, China
- Ms Crystal Wen
| Supply capacity: | 200,000 tons/month | Packaging Details: | wooden pallet |
| place of origin; place of origin: | China | Steel grade: | H13 |
| standard: | ASTM | port: | Shanghai |
| delivery time: | within 7 days | payment terms: | letter of credit, wire transfer |
| Material: | alloy steel | process: | hot rolled |
| Size range: | Outer Diameter: 12mm - 90mm |
DIN 1.2344 hot work tool steel(also known asAisi H13) are standardized tool steel grades for hot working. The main feature of this grade is the combination of alloying elements Cr, Mo and V, which provide high wear resistance against thermal shock. It is known for its great strength and heat resistance. It is widely used in die casting in the field of cold heading. The presence of high vanadium in DIN 1.2344 can handle wear at low and high temperatures. It consistently provides uniformity and a high level of workability. This tool steel is mainly used for aluminum, magnesium and zinc die castings.
aspect
Round: Diameter 10-700mm
Flat: 6-120 x 40-1200 mm
Block: 80-600 x 100-1600 mm
Specification
EAF+LF+VD+(ESR), Hot Rolled or Forged, Annealed, Black Finish or Machined Finish, UT SEP1921 Class3 D/d
equivalence
| AISI/SAE | DIN/W.Nr | day mark | GB |
| H13 | 1.2344 | SKD61 | 4Cr5MoSiV1 |
chemical composition(%)
| steel grade | C | silicon | manganese | phosphorus | small | chromium | Mo | five |
| 1.2344 | 0.35-0.42 | 0.80-1.20 | 0.25-0.50 | ≤ 0.030 | ≤ 0.020 | 4.80-5.50 | 1.20-1.50 | 0.85-1.15 |
| H13 | 0.32-0.45 | 0.80-1.20 | 0.20-0.50 | ≤ 0.030 | ≤ 0.030 | 4.75-5.50 | 1.10-1.75 | 0.80-1.20 |
| SKD61 | 0.32-0.42 | 0.80-1.20 | 0.25-0.50 | ≤ 0.030 | ≤ 0.030 | 4.50-5.50 | 1.00-1.50 | 0.80-1.15 |
feature
1. Air-cooled hardening hot work tool steel, the most widely used.
2. High toughness and good thermal fatigue resistance.
3. The deformation, deformation and oxide scale after heat treatment during air cooling are small.
4. Good corrosion resistance to molten aluminum.
application
1. For aluminum and copper alloy die-casting molds with cavity temperature below 600℃
2. It is used to make forging die, forging die and die hammer for precision forging machine.
forging technology
| heating temperature | Start forging temperature | Final forging temperature | cooling method |
| 1120-1150℃ | 1050-1100℃ | 900-850°C | Pit or sand cooling |
heat treatment
annealing
750 to 800°C (1382 to 1472°F)
Slowly controlled cooling in an oven at 10 to 20°C/hour (50 to 68°F/hour) to
About 600°C (1112°F) with further cooling in air.
Hardness after annealing: max. 235 HB.
hardening
1020 to 1080°C (1868 to 1976°F)
Oil, Salt Bath (500 - 550°C / 932-1022°F), Air
Hold time after temperature equalization: 15 to 30 minutes.
Hardness available:
52 - 56 HRC in oil or salt bath,
50 - 54 HRC in air.
stress relief
600 to 650°C (1112 to 1202°F)
Furnace slow cooling; designed to relieve stress from extensive machining or complex shapes.
After heating, keep in neutral atmosphere for 1-2 hours.
tempered
Slowly heat to tempering temperature/furnace time immediately after hardening
1 hour per 20mm thick workpiece, but at least 2 hours/cooling in air.
Tempering at least twice is recommended.
A third tempering cycle for stress relief may be beneficial.
First tempered approx. 30°C (86°F) above maximum secondary hardness.
A second temper to the desired working hardness.
The tempering chart shows the average tempered hardness value.
3rd Stress Relief Min Max at 30 - 50°C (86 to 122°F)
tempering temperature.
