OTAI SPECIAL STEEL is H13 round bar stockholders and suppliers from China. Whats’ more, We Supply in DIN 1.2344 tool steel round bar, flat bar and plate more 18 years experience. H13 chromium hot-work steel is widely used in hot and cold work tooling applications. Due to its excellent combination of high toughness and fatigue resistance H13 is used more than any other tool steel in tooling applications.

Din 1.2344 Steel is a high quality Hot work tool steel, and it belong to the high quality high carbon alloy tool steel. And Oil Quenche & Tempere Hardness is 28-34 HRC. And DIN 1.2344 steel Annealing delivery hardness less than 250HB.

AISI H13 steel | DIN 1.2344 | JIS SKD61 | GB 4Cr5MoSiV is characterized by:

  • High toughness and ductility
  • Good through-hardening properties
  • Small distortion during hardening
  • Good resistance to abrasion at both low and high temperatures
  • Good high-temperature strength and resistance of thermal fatigue

h13 round bar stock

 

 

 

 

 

 

 

 

 

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Related Specifications ASTM A681 | DIN 17350 | EN 4953 | JIS G4404 | Chinese GB/T 1299

1. Form of Supply

DIN 1.2344 tool steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar and steel square block. Moreover, 1.2344 steel Round bar can be saw to your required lengths as one offs or multiple cut pieces. Furthermore, 1.2344 steel Rectangular pieces can be saw from flat bar or plate to your specific sizes.And Ground tool steel bar can be supply, providing a quality precision finished bar to tight tolerances.

2. Chemical composition

  • Chromium, Cr: 4.75-5.50
  • Molybdenum, Mo: 1.10-1.75
  • Silicon, Si: 0.80-1.20
  • Vanadium, V: 0.80-1.20
  • Carbon, C: 0.32-0.45
  • Nickel, Ni: 0.3
  • Copper, Cu: 0.25
  • Manganese, Mn: 0.20-0.50
  • Phosphorus, P: 0.03
  • Sulfur, S: 0.03

3. Equivalent Of H13 round bar hot work alloy tool steel

ASTM W-Nr. JIS DIN GB BS KS
H13 1.2344 SKD61 X40CrMoV5-1 4Cr5MoSiV BH13 STD61

4. Heat treatment

  • Annealing of SKD61 Tool steel

At first, Slowly heated to 750-780 ℃ and allow enough times, let the steel to be thoroughly heat, Then cool slowly in the furnace. Then the 2344 tool  steel will get MAX 250 HB （Brinell hardness）.

  • Hardening of 1-2344 tool steel

1.2344 steels should be heated uniformly to 1020-1060°C. until completely heated through. And if needed, the steels can be preheated at 300-500°C (572-932°F). About 30 min per 25 mm of ruling section is to be provide and then the steels should be immediately quenche in oil or air.

  • Tempering of H13 tool steel

At first, tempering of 1.2344 steels is performed at 550-650°C, Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Then get Rockwell C hardness of 56 to 38.

Temperature [℃]       400   500     550     650

Hardness [HRC]          53      56        54       47

5. Physical Properties

The physical properties of H13 tool steels are given in the following table.

Properties Metric Imperial
Density (@20°C/68°F) 7.80 g/cm3 0.282 lb/in3
Melting point 1427°C 2600°F

6. Mechanical Properties

The mechanical properties of H13 round bar tool steels are tabulated below.

Properties Metric Imperial
Tensile strength, ultimate (@20°C/68°F, varies with heat treatment) 1200 – 1590 MPa 174000 – 231000 psi
Tensile strength, yield (@20°C/68°F, varies with heat treatment) 1000 – 1380 MPa 145000 – 200000 psi
Reduction of area (@20°C/68°F) 50.00% 50.00%
Modulus of elasticity (@20°C/68°F) 215 GPa 31200 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30

7. Applications

And DIN 1.2344 steels are mainly used for forming extrusion dies.Typical applications include casting molds aluminum, magnesium, zinc, copper and aluminum extrusion dies, liners, spindles, pressure pad, followers, pad, die, the death and the adapter ring copper and brass extrusion.

Moreover, DIN 1.2344 is used to produce hot stamping and extrusion die forging, thermal upsetting dies, jigs mold, hot embossing, punching, trimming tools. Other applications include plastic molds, shear blades for heat and hot extrusion dies.

8. Regular size and Tolerance of DIN 1.2344 tool steel

DIN 1,2344 Steel round bar: Diameter Ø 5mm – 3000mm

1.2344 Steel plate: Thickness 5mm – 3000mm x Width 100mm – 3500mm

Steel Hexagonal bar: Hex 5mm – 105mm

Others 1.2344 have not specified size, please contact our experienced sales team.

9. Processing Of H13 round bar hot work alloy tool steel

DIN W N-r 1.2344 tool steel round bar and flat sections can be cut to your required sizes. 2344 tool steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. Din 1.2344 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

10. Forming

H13 tool steels are formed by using conventional methods.

11. Welding

H13 tool steels are readily weldable.

12. Forging

H13 tool steels are forged at 1079°C (1975°F). For this type of steels, forging below 898°C (1650°F) is not preferable.

13. Cold Working

Cold working may be carried out on H13 tool steels using conventional methods.

14. More Technical Details of 1.2344 steel

Contact our experienced sales team to help you with your H13 round bar questions and enquiry by Email or Telphone. The questions will be reply in 24 hours.
OTAI SPECIAL STEEL CO., LTD

Email: Jack@otaisteel.com

Tel:  +86-769- 23190193

Fax:  +86-769-88705839