Din 50crv4

50crv4 is an excellent elastic alloy steel, which is widely used in the manufacture of mechanical springs, automotive suspension systems, tools and other fields. It has excellent elasticity and toughness, and can be used for a long time under high stress and frequent loads. At the same time, 50crv4 also has a high degree of wear resistance and corrosion resistance, so that it can maintain excellent performance in a variety of harsh working environments.

With the rapid development of science and technology, 50crv4 is more and more widely used in all walks of life. It can not only improve production efficiency, reduce costs, but also bring more convenient and comfortable life for human beings. As a positive material, 50crv4 has played a key role in the development of human society.

In addition, 50crv4 research and development efforts are also being strengthened. People are trying to improve its strength, hardness, toughness and other properties to meet a variety of different use needs. In this process, new technologies and solutions continue to emerge, driving the development of 50crv4 materials.

Material No.:1.8159
Former brand name:F2K
International steel grades:
BS:735A51,735M50,735H51
AFNOR:50CrV4,51CV4
SAE:6150

51CrV4 / 1.8159, 58CrV4 / 1.8161, 59CrV4 / 1.2242 - specification and application

51CrV4 / 1.8159, 58CrV4 / 1.8161, and 59CrV4 / 1.2242 are three types of spring steels that are widely used in various mechanical applications due to their excellent mechanical properties. These steels are characterized by their high strength, good ductility, and good fatigue resistance, which makes them ideal for use in applications where high stress and shock resistance are required.

51CrV4 / 1.8159 is a chromium-vanadium alloy steel, which is heat treatable to achieve high levels of strength and toughness. This steel is mainly used for producing high-strength springs and spring elements, such as automotive springs, valve springs, and spring clutches.

58CrV4 / 1.8161 is another type of chromium-vanadium alloy steel with high fatigue resistance. This steel is widely used in the manufacturing of springs and spring elements for high-stress applications, including suspension springs and shock absorber springs.

59CrV4 / 1.2242 is a low alloy steel with high mechanical properties that make it suitable for use in the production of heavy-duty springs, couplings, and low-stress stabilizers. This steel is also heat treatable, which makes it possible to achieve high levels of strength and toughness.

In summary, 51CrV4 / 1.8159, 58CrV4 / 1.8161, and 59CrV4 / 1.2242 are three excellent types of spring steels that offer superior mechanical properties, making them ideal for a wide range of mechanical applications. These steels are widely used in the manufacturing of high-quality springs and spring elements and are essential for the smooth operation of numerous machines and mechanical devices

Mechanical properties for light bars in accordance with EN 10277-5

- Delivery condition +SH or +A+SH

Dimensions <80mm

Hardness: <248 HB

- Delivery condition +C+QT

Dimensions <16mm

Tensile strength, R_m: 1100 - 1300 MPa

Yield point, R_e: >900 MPa

Elongation, A: > 9%

Dimensions 16 - 40mm

Tensile strength, R_m: 1000 - 1200 MPa

Yield point, R_e: >800 MPa

Elongation, A: >10%

Przekroje 40 - 80mm

Tensile strength, R_m: 900 - 1100 MPa

Yield point, R_e: >700 MPa

Elongation, A: >12%

- Delivery condition +A+C

Dimensions <16mm - Hardness: <311 HB

Dimensions 16-40mm - Hardness <293 HB

Dimensions 40-80mm - Hardness <287 HB

Mechanical properties of hot-rolled bars according to EN 10089

After hardening at 850 ℃ in oil and tempering at 450 ℃

Tensile strength, R_m: 1350 - 1650 MPa

Yield point, R_e: >1200 MPa

Elongation, A: >6%

Contraction, Z: >30%

Impact resistance, KU: >8 J

Delivery condition +S - Hardness: <280 HB

Delivery condition +A:- Hardness: <248 HB

Delivery condition +AC - Hardness: <230 HB

Mechanical properties of cold-rolled spring strips according to EN 10132-4

Delivery condition +A+LC

Tensile strength, R_e: <700 MPa

Yield point, R_e: <550 MPa

Elongation, A: >13%

HV Hardness: <220

HRB Hardness: <94

Delivery condition +QT

Yield point, R_e: 1200 - 1800 MPa

HRC Hardness: 38,5 - 52,5

HV Hardness: 370 - 550

Mechanical properties for forged products in accordance with EN 10250-3

After hardening at 820 - 860 ℃ and tempering at 540 - 680℃

Properties of longitudinal samples with dimensions of <160mm

Tensile strength, R_m > 800 MPa

Yield point, R_e: > 600 MPa

Elongation, A: >13%

Impact resistance, KV_20℃: >30 J

Properties of transverse samples with dimensions of <160mm

Tensile strength, R_m > 800 MPa

Yield point, R_e: >600 MPa

Elongation, A: > 9%

Impact resistance, KV_20℃: >16 J

Mechanical properties of hot-rolled products according to EN 10083-3

Round products with a dimensions of <16mm and flat with a thickness of <8mm

Tensile strength, R_m: 1100 - 1300 MPa

Yield point, R_e: >900 MPa

Elongation, A: 9-40%

Contraction, Z: >45%

Round products with a dimensions of 16-40mm and flat with a thickness of 8-20mm

Tensile strength, R_m: 1000 - 1200 MPa

Yield point, R_e: >800 MPa

Elongation, A: 10%

Contraction, Z: >45%

Impact resistance, KV_20℃: >30J

Round products with a dimensions of 40-100mm and flat with a thickness of 20-60mm

Tensile strength, R_m: 900 - 1100 MPa

Yield point, R_e: >700 MPa

Elongation, A: 12%

Contraction, Z: >50%

Impact resistance, KV_20℃: >30J

Round products with a dimensions of 100-160mm and flat with a thickness of 60-100mm

Tensile strength, R_m: 850 - 1000 MPa

Yield point, R_e: >650 MPa

Elongation, A: 13%

Contraction, Z: >50%

Impact resistance, KV_20℃: >30J

Round products with a dimensions of >160mm and flat with a thickness of >100mm

Tensile strength, R_m: 800 - 950 MPa

Yield point, R_e: >600 MPa

Elongation, A: 13%

Contraction, Z: >50%

Impact resistance, KV_20℃: >30J

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