H13, X40crmov5-1, 1.2344, SKD61 Hot Work Tool Steel

• Standard: DIN, JIS, AISI, ASTM, GB, BS
• Technics: Hot Rolled
• Application: Tool Steel Bar
• Surface: Black
• Alloy: Alloy
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Model NO.: H13, X40CrMoV5-1, 1.2344
• Trademark: Bozhong
• Origin: China
• Production Capacity: 50000tons/Month

Product Description

Products Details

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

H13 Tool Steel is chromium hot work tool steels which are widely used in hot and cold work tooling applications. H13 tool steelis classified as group H steels by the AISI classification system. This series of steels start from H1 to H19.

1. Supply Range for AISI H13 Tool Steel

H13 Steel Round Bar: diameter 8mm - 400mm
H13 Steel Plate: thickness 16mm -500mm  x width 200mm - 800mm
H13 Steel Slab: 200mm x  500-800mm

Surface Finish: Black, Rough Machined, Turned or as per given requirements.

2. Common H13 Tool Steel Related Specifications

Country	USA	German	Japan
Standard	ASTM A681	DIN EN ISO 4957	JIS G4404
Grades	H13	1.2344/X40CrMoV5-1	SKD61

3. H13 Tool Steel Chemical Composition

ASTM A681	C	Mn	P	S	Si	Cr	V	Mo
H13	0.32	0.45	0.2	0.6	0.03	0.03	0.8	1.25	4.75	5.5	0.8	1.2	1.1	1.75
DIN ISO 4957	C	Mn	P	S	Si	Cr	V	Mo
1.2344 /X40CrMoV5-1	0.35	0.42	0.25	0.5	0.03	0.02	0.8	1.2	4.8	5.5	0.85	1.15	1.1	1.5
JIS G4404	C	Mn	P	S	Si	Cr	V	Mo
SKD61	0.35	0.42	0.25	0.5	0.03	0.02	0.8	1.2	4.8	5.5	0.8	1.15	1.0	1.5

4. AISI H13 Steel Mechanical Properties

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

5. Forging of H13 Tool Steel Heating for forging must be done slowly and uniformly. Soak through at 1900°-2000°F and reheat as often as necessary, stopping work when the temperature drops below 1650°F. After forging, cool slowly in lime, mica, dry ashes or furnace. H-13 should always be annealed after forging.

6. Heat Treatment for H13 Tool Steels

• Annealing

Heat slowly to 1550°-1650°F, hold until entire mass is heated through, and cool slowly in the furnace (40F per hour) to about 1000°F, after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.

• 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

• Preheat Prior to Hardening

Warm slightly before charging into the preheat furnace, which should be operating at 1400°-1500°F.

• Hardening

H13 tool steel is a 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. The temperature employed is usually 1800°-1850°F, depending on size section.

• Quenching

Quench in still air or dry air blast. If complicated forms are to be hardened, an interrupted oil quench can be used. Quench part in oil and remove from bath when it just loses its color (1000°-1100°F). Finish cooling to below 150°-125°F in air, then temper immediately.

• Tempering

Tempering practice may vary with size and application, but is usually performed in the range of maximum secondary hardness or higher. Double tempering is recommended. The results below is H13 that was air quenched from 1800°F and tempered for 4 hours at various temperatures. The results may be used as a guide, keeping in mind that parts of heavy section or mass may be several points lower in hardness.

7. Application of AISI H13 Tool Steel

• As Tools for Extrusion

Part	Aluminium, mag­nesium alloys, HRC	Copper al­loys HRC	Stainless steel HRC
Dies, Backers, die-holders, liners, dummy blocks, stems	44-50	43-47	45-50
41-50	40-48	40-48
Austenitizing temperature	1,870-1,885°F	1,900-1,920°F
(1,020-1,030°C)	(1,040-1,050°C)

• As Plastic Molding Tool Steel

Part	Austenitizing temp.	HRC
Injection molds Compression/ transfer molds	1,870-1,885°F (1,020-1,030°C)	50-52
Tempering 480°F (250°C)

• Other Applications

Applications	Austenitizing temp	HRC
Severe cold punching, scrap shears	1,870-1,885°F	50-52
(1,020-1,030°C)
Tempering 480°F (250°C)
Hot shearing	1,870-1,885°F
(1,020-1,030°C)	50-52
Tempering 480°F (250°C) or
1,070-1,110°F	45-50
(575-600°C)
Shrink rings (e.g. for cemented carbide dies)	1,870-1,885°F	45-50
(1,020-1,030°C)
Tempering 1,070-1,110°F
(575-600°C)
Wear-resisting parts	1,870-1,885°F	Core 50-52 Surface ~1000HV1
(1,020-1,030°C)
Tempering 1,070°F (575°C)
nitrided

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