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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.

Equivalent grades:

Addition to other grades:

MS, EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, OHNS, D2, D3, H-11, H-13, CW-1, M2, M35, M42, 2714, SKD-11, P20, P20+S, P20+Ni, SCM 420, ASTM SA-36, ASTM SA-105, SAE 1018, SAE 1020, SAE 4140, SAE 8620, 16MNCR5, 20MNCR5, C20, C35, C40, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE 52100, S40C, S355J2G3.

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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

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

1 MPa = 1 N/mm2

Hardness:

Max. 250

Heat Treatment:

Hardening:

Austenitizing temperature 1020 ± 10 °C

Tempering:

180 ± 10 °C

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

Thermal Properties

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

Forging Properties:

Stress Relieving:

Approx. 660-710

Normalizing:

Annealing:

840 – 870

Density:

Density, g/cm3

7,7

Machinability:

Welding:

Supply Cities:

Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore, Ranipet, Sivakasi, Karur, Hosur, Nagercoil, Kanchipuram, Karaikudi, Neyveli, Cuddalore, Kumbakonam, Thiruvannamalai, Pollachi, Rajapalayam, Gudiyatham, Pudukottai, Vaniyambadi, Ambur, Nagapattinam, Trivandrum, Vijayawada, Guntur, Thirupathi, Nazarathpet, Kakinada, Kurnool, Kadapa, Nizamabad, Mahabubnagar, Karimnagar.