1.2379 D2 SKD11 Cold Work Tool Alloy Mould Die Hot Rolled Steel Plate

• After-sales Service: 24-hours on line
• Warranty: 7 days after receiving goods
• Type: Steel Plate
• Standard: ASTM, AISI, GB, JIS, DIN, BS
• Certification: ISO, RoHS
• Surface Treatment: Blackface
• Model NO.: 1.2379/D2/SKD11/Cr12Mo1V1
• Technique: Hot Rolled
• Application: Mold & Dies
• Special Use: Cutting Tools, Measuring Tools, Wear Resistant Steel
• Stock: Stock
• Production Route: Ef/Eaf+Lf+Vd/ESR
• Certificate: ISO/Mill Certificate
• Shape: Round Bar/Plate/Flat Bar
• Heat&treatment: Annealing or Q/T
• Test: SGS/ UT 100%/ Element Testing
• Payment: L/C,T/T
• Transport Package: Standard Packing
• Specification: According to customer requirements
• Trademark: CF STEEL
• Origin: China
• HS Code: 7225401000
• Production Capacity: 1000t/Month

Product Description

1.2379 D2 SKD11 Cold Work Tool Alloy Hot Rolled Steel Plate

For various high precision, long-life cold work moulds, and cutting tools and measuring tools.

Grade:

GB	AISI	DIN	JIS
Cr12Mo1V1	D2	1.2379	SKD11

Hardness
Annealing ≤255HB, impression diameter≥3.8mm;
Quenching ≥59HRC

D2 steel heat treatment regime
Quenching, 820±15ºC, preheat, 1000±6ºC (salt bath) or 1010±6ºC heating,
Keep warm 10~20 min, air cooling, 200±6ºC tempering.

Chemical composition

C	Si	Mn	S	P	Cr	Ni	Cu	V	Mo
1.40-1.6	0.6	0.6	0.03	0.03	11.5-13	0.25	0.30	1.00	0.70

Product Description

Size of Steel grade 1.2379 mechanical properties
Round bar	Diameter(mm)	Length (mm)
	Max:120	Max:6000
Plate	Thickness(mm)	Width (mm)	Length (mm)
	Max:80	Max:1000	Max:6000
The specification can be customized.

Recommend heat treatment:

Quenching					Temepring
Heating temperature/ºC			Cooling way	Hardness(HRC)	Tempering temperature/ºC	Tempering number	Hardness (HRC)
First preheating	Second preheating	Last heating
600-650	800-850	1020-1040	Air Cooling	61-63	500-560	2	≥58

Introduction
D2 steel is a high wear resistant micro deformation cold working die steel, belonging to air hardening tool steel.With high quality fraction of carbon and high chronic, the hardness can up to 60HRC after heat treatment, but malleability, toughness, rust resistance is not good and the surface of the steel is also difficult to be polished.
With the development of cold stamping products moving towards high accuracy,high efficiency,varieties, we require the mould steel should has good wear resistance and high toughness.
Compared with Cr12MoV steel, this D2 die steel adds Mo,V compositions,changed the steel cast structure, improved the morphology of ledeburite , toughness and wear resistance are better than Cr12MoV steel, improved the service life as well.Because of the yield point and plastic deformation resistance is higher than Cr12MoV steel, so that forging performaance and hot molding properties are a little weak than Cr12MoV steel.

Application
1) used for freezer compressor rear cowl mould quenching hardening 56~58HRC.
2) because of V,Mo composition are higher than Cr12MoV steel, so that it has better combination property and will instead of Cr12MoVsteel gradually.
3) making cylindrical die roll,destage mixing pad cold punching mould and the service life is5-6 times longer than Cr12MoV steel.

Feature
1.High high wear resistant
2.Micro deformation
3.Long service life
4.Good toughness
5.High accuracy, high efficiency, varieties

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