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1.2379, DIN X155CrVMo12-1, AISI D2

We can produce 1.2379, DIN X155CrVMo12-1, AISI D2 stainless steel round rods, 1.2379, DIN X155CrVMo12-1, AISI D2 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.2379, DIN X155CrVMo12-1, AISI D2 chemical composition and 1.2379, DIN X155CrVMo12-1, AISI D2 mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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1.2379, DIN X155CrVMo12-1, AISI D2

Designation by Standards

Brand Name	Ravne No.	Mat. No.	DIN	EN	AISI
OCR12	834	1.2379	X155CrVMo12-1	X160Cr MoV121	D2

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
1.53	0.35	0.40	12.00	1.0	-	0.85	-	-

Description
This alloy is one of the cold work, high carbon, high chromium type steel/" target="_blank" class="keylink">tool steels. D2 is a deep hardening, highly wear resistant alloy. It hardens upon air cooling so as to have minimum distortion after heat treatment.

Applications
Used for long run tooling applications where wear resistance is important, such as blanking or forming dies and thread rolling dies, cutting tools, stamping, woodworking, moulding tools for plastics. Toughness better than in D3. Possibility of nitriding.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 210
Density [g/cm³]: 7.70
Thermal conductivity [W/m.K]: 20.0
Electric resistivity [Ohm mm²/m]: 0.65
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10^-6 ^oC^-1

20-100^oC	20-200^oC	20-300^oC	20-400^oC	20-500^oC	20-600^oC	20-700^oC	20-800^oC
9.8	11.7	12.1	12.8	12.9	13.0	13.2	13.5

Continuous Cooling Transformation (CCT) Diagram

Time-Temperature Transformation (TTT) Diagram

Click the image to enlarge the diagram.

Soft Annealing
Heat to 840-880^oC, cool slowly. This will produce a maximum Brinell hardness of 255. To secure uniform softness.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650-700^oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 1000-1040^oC followed by oil, warm bath (500-550^oC, cooling bath or air. Hardness after quenching is 62-64 HRC.

Tempering
Tempering temperature: 150-550^oC.

Tempering Temperature (^oC) vs. Hardness (HRC)

100^oC	200^oC	300^oC	400^oC	500^oC	525^oC	550^oC	600^oC	700^oC
63	61	58	58	59	58	56	51	35

Tempering Diagram

Forging
Hot forming temperature: 1050-850^oC.

Machinability
Machinability of D2 is poor. Using the water hardening simple alloy steel/" target="_blank" class="keylink">tool steels (W group) as a base of 100 % the D2 alloy would rate about 50 % in machinability.

Corrosion Resistance
D2 is a steel alloy and is not corrosion resistant. It will rust unless protected.
Cold working
Cold working by conventional methods may be done with the alloy in the annealed condition.
Welding
Consult the alloy supplier for information as to welding.

Mechanical properties

1.2379, DIN X155CrVMo12-1, AISI D2 Mechanical properties,Our production completely according to the 1.2379, DIN X155CrVMo12-1, AISI D2 standards to meet the 1.2379, DIN X155CrVMo12-1, AISI D2 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.2379, DIN X155CrVMo12-1, AISI D2 mechanical properties.

Heat treatment

1.2379, DIN X155CrVMo12-1, AISI D2 Heat treatment,Our production completely according to the 1.2379, DIN X155CrVMo12-1, AISI D2 standards to meet the 1.2379, DIN X155CrVMo12-1, AISI D2 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.2379, DIN X155CrVMo12-1, AISI D2 Heat treatment.

Machining

1.2379, DIN X155CrVMo12-1, AISI D2 Machining,Our production completely according to the 1.2379, DIN X155CrVMo12-1, AISI D2 standards to meet the 1.2379, DIN X155CrVMo12-1, AISI D2 Machining, can also according to the customer request, to meet the requirements of customers of 1.2379, DIN X155CrVMo12-1, AISI D2 Machining.

Welding performance

1.2379, DIN X155CrVMo12-1, AISI D2 Welding performance,Our production completely according to the 1.2379, DIN X155CrVMo12-1, AISI D2 standards to meet the 1.2379, DIN X155CrVMo12-1, AISI D2 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.2379, DIN X155CrVMo12-1, AISI D2 Welding performance.

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