H13 Tool Steel | 1.2344 | SKD61 | X40CrMoV5-1 Hot Work Tool Steel

H13 Steel is a versatile chromium-molybdenum hot work steel that is widely used in hot work and cold work tooling applications. The hot hardness (hot strength) of H13 resists thermal fatigue cracking which occurs as a result of cyclic heating and cooling cycles in hot work tooling applications. Because of its excellent combination of high toughness and resistance to thermal fatigue cracking (also known as heat checking) H13 is used for more hot work tooling applications than any other tool steel.

And OTAI Special Steel Co., Ltd. can is a H13 tool steel supplier and stockist. Now we have H13 tool steel round bar and plate for sale. We also can help you to machining H13 steel round bar and plate.  H13 Tool Steel Data PDF DOWN

1. Supply Form of H13 Steel – ASTM A681 Hot Work Steel
2. AISI H13 Steel Supply Range:

ASTM H13 Steel Round Bar: Diameter 5mm – 400mm

AISI H13 Steel Plate: Thickness 10 –500mm x Width 200– 1400mm

SAE H13 Steel Block: 210mm x 500-810mm

Surface Finish: Black, Rough Machined, Turned or as per given requirements.h13 steel round bar

3. H13 Tool Steel Chemical Composition
ASTM A681 C Si Mn P S Cr Mo V
H13/T20813 0.32～0.45 0.80～1.20 0.20～0.50 0.030 Max 0.030 Max 4.75～5.50 1.10～1.75 0.80～1.20
DIN 17350 C Si Mn P S Cr Mo V
1.2344/ X40CrMoV5-1 0.37～0.42 0.90～1.20 0.30～0.50 0.030 Max 0.030 Max 4.80～5.50 1.20～1.50 0.90～1.10
GB/T 1299 C Si Mn P S Cr Mo V
4Cr5MoSiV1 0.32～0.42 0.80～1.20 0.20～0.50 0.030 Max 0.030 Max 4.75～5.50 1.10～1.75 0.80～1.20
JIS G4404 C Si Mn P S Cr Mo V
SKD61 0.35～0.42 0.80～1.20 0.25～0.50 0.030 Max 0.030 Max 4.80～5.50 1.00～1.50 0.80～1.15
4. H13 Tool Steel Related Specifications
USA German Japan China ISO
ASTM A681 DIN 17350 JIS G4404 GB/T 1299 ISO 4957
H13 1.2344 SKD61 4Cr5MoSiV1 40CrMoV5
5. ASTM H13 Steel Material Mechanical Properties

Tensile strength, ultimate (@20°C/68°F, varies with heat treatment): 1590 MPa

Tensile strength, yield (@20°C/68°F, varies with heat treatment): 1380 MPa

Reduction of area (@20°C/68°F): 50%

Modulus of elasticity (@20°C/68°F): 215 GPa

6. Forging of H13 Steel metal material

At first, Pre-Heating to 750℃，Then heat to forged temperature. Next Soak at 1050-1100 °C , then ensure heat throughly. After forged, cool slowly .

7. Heat Treatment of  H13 Steel
  • Annealing

At first slowly heat to 843℃ – 898℃(1550-1650°F)，then slowly Cool to 538℃(1000℉) in heat treatment furnace. Finally, cool in air. After annealing hardness HBS: 235 Max

  • H13 Steel Hardening

H13 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. Then the temperature employed is usually 1800°-1850°F, depending on size section

  • Quenching

ASTM H13 steel Quenching temperature / ℃ | salt bath furnace: 996

AISI H13 steel Quenching temperature / ℃ | controlled atmosphere furnace: 1010

The heat preservation time/min: 5 ~ 15

Quenching medium: air cooling

  • Tempering

Tempering temperature / ℃ : 552

After tempering hardness HRC or higher: 52

  • Stress Relieving
  • When desirable to relieve the strains of machining, heat slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving). Â
8. Application of ASTM H13 tool Steel

1, Application for Hot Extrusion Mold

As Dies, liners, Die holder Backers, Aluminium Extrusion mould, Copper alloy mold, stainless products mold Etc.

2, Application for Plastic Mold Tool

Like Large Injection molds compression, Thick wall plastic molds, Etc.

9. Quality Assured of ASTM H13 Steel

Quality assured by ISO 9001:2008 quality management system. What’s more, Our all H13 tool steel all had by SEP 1921-84 ultrasonic inspection (UT Test). Quality Grade: E/e, D/d, C/c.

If you have any H13 steel inquiry and question for Price, Application, hot treatment, Please don’t hesitate contact us.

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