DIN 1.2379

Grade Introduction:
DIN 1.2379 Steel (X153CrMoV12 Material) is a high carbon chromium molybdenum vanadium cold worked tool steel with high wear resistance, good dimensional stability, toughness, and hardenability. Due to the secondary hardening properties, it is easy to carry out supplementary nitriding and surface coating. High chromium increases wear resistance and toughness and contribute to corrosion resistance; Vanadium gives the steel a finer grain structure and prevents excessive grain growth and improves the hardenability of steel; Molybdenum increases heat resistance and hardenability, improve corrosion and wear resistance.
DIN 2379 steel is Cold Work Steel with High Carbon High Chromium contents. The Quality with high wear-resistant and toughness properties due to Vanadium addition of 0.90%. Normally it supply condition is Annealed and will offer hardness to reach 57-59 HRC. It can be machinable in the annealed condition. DIN 2379 is superior steel to D3 due to its high alloy properties.

Grade Application

DIN 2379 tool steel applicable for cold stamping or forming dies, cold forming rolls, Chipper Knives, Punches, slitters, shear blades, tools, tyre shredders, trimming, cutting Threading Dies, stamping tools Etc.

Addition to other grades

MS, EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, DIN1.2714, P20, P20+S, P20+Ni, SCM420, ASTMSA-36, ASTMSA-105, SAE1018, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.

Equivalent Grades

European Union
Germany
US
ISO
China
Japan
Standard
Steel Name (Material Number)
Company
Steel Name
Standard
Grade (UNS)
Standard
Grade
Standard
Grade
Standard
Grade
EN ISO 4957
X153CrMoV12 (1.2379)
Bohler
Bohler K110
AISI; ASTM A681
D2(UNST30402)
ISO 4957
X153CrMoV12
GB/T 1299
Cr12Mo1V1
JIS G4404
SKD10

Our Supply Range

We supply to automotive ancillaries and OEM customers. The products we manufacture are used as input for manufacturing of automotive and general engineering components. These components are further assembled into systems fitted in automobiles and other engineering applications.

Product Type Size Range
Forged Round Bars 140mm Dia to 850mm
Rolled Round Bars 16mm Dia and above
Forged Flat Bars Thickness: 32mm to 510mm, Width: 65mm to 1050mm
Rolled Flat Bars Thickness: 6mm to 110mm, Width: 25mm to 510mm

Chemical Composition

The following table shows the chemical composition of DIN 1.2379 steel:

Element
C
Si
Mn
Ni
P
S
Cr
Mo
V
Content (%)
1.45 – 1.60
0.1 – 0.6
0.2 – 0.6
–
–
–
11.0 – 13.0
0.70 – 1.00
0.70 – 1.00

Hardness

Max. 250

Hardening

Austenitizing temperature 1020 ± 10 °C

Thermal Properties

Thermal Conductivity at °C
20
350
700
W/(m*K) 
16.7
20.5
24.2

Stress Relieving

Approx. 660-710

Mechanical Properties

Country (Region)
Standard
Steel Grade (Steel Number)
Tensile strength, MPa, ≥
Yield strength, MPa, ≥
European Union
EN ISO 4957
X153CrMoV12 (1.2379)
860
420

Physical Properties

Coefficient of thermal expansion °C 
20-100
20-200
20-300
20-400
10-6 m/(m*K)
10.6
11.5
11.8
12.3

Tempering

180 ± 10 °C

Annealing

840 – 870

Density

Density, g/cm3
7,7

Supply Cities

Ambattur, Bangalore, Chennai, Coimbatore, Dindigul, Guindy, Madurai, Nellore, Hyderabad, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Kanyakumari, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore, Karur, Nagercoil, Kanchipuram, Karaikudi, Pudukottai, Nagapattinam.

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