Category Archives: Alloy Steel

1.5217 alloy steel

1.5217 belongs to alloy steel, otai manufacture 1.5217 alloy steel. 1.5217 supplier.

1.5217 Steel equivalent standards:

1.5217 steel mechanical properties:

Yield strength [MPa]:410-450

Tensile strength[MPa]:550-750

Elongation A [%]:20

Reductionof area Z [%]:40

Hardness:< 220 HB

1.5217 alloy steel application

Tubular parts for the automotive, oil and gas, construction, general engineering and agricultural industry, such as bushes, hydraulic cylinders, hollow shafts, rings, hollow rolls for conveyors, nuts, gear wheels, shafts, axles, stuffing boxes, spindles, drill jigs, rolls etc.

46Mn7 alloy structural steel

46Mn7 is a kind of moderate strength alloy structural steel, as a carbon quenched and tempered steel, its strength, abrasion resistance and hardenability are high. After quenching and has good mechanical properties, machinability is still good.

46Mn7 equivalent steel grades:

46Mn7 Mechanical Properties:

Tensile strength σb (MPa): ≥885

Yield strength σs (MPa): ≥735

Elongation δ5 (%): ≥10

Impact energy Akv (J): ≥47

32NiCrMo14-5 Alloy steel

32NiCrMo14-5 has good corrosion resistance and high strength. It is often used as thin plate and has good welding performance.

32NiCrMo14-5  Equivalent Steel Grades:

32NiCrMo14-5 Mechanical property:

Yield Strength R_p0.2 (MPa):649

Tensile Strength R_m (MPa):814

Impact KV/Ku (J):13

Elongation A (%):32

Reduction Z (%):11

28NiCr10 alloy structural steel

28NiCr10 is a kind of alloy structural steel.

Equivalent Materials to  28NiCr10 steel:

28NiCr10 mechanical properties:

Tensile strength σ B (MPA): ≥ 980 (100)
Yield strength σ s (MPA): ≥ 785 (80)
Impact toughness value α kV (J / cm2): ≥ 78 (8)
Hardness: ≤ 241hb

45CrNiMoV Alloy Steel

45CrNiMoV is a low alloy ultra high strength steel. It has the advantages of high yield ratio, high strength, good toughness, high temperature strength and no temper brittleness, but poor weldability.

45CrNiMoV Mechanical Property:
Tensile strength σ B (MPA): 1553
Yield strength σ 0.2 (MPA): 1374
Elongation δ 5 (%): 14
Reduction of area ψ (%): 46
Impact toughness value α Ku (J / cm2): 51

40CrNi2Mo alloy structural steel

40CrNi2Mo round steel, 40CrNi2Mo alloy structural steel, 40CrNi2Mo is one of the alloy structural steel, also known as alloy steel, it is on the basis of high-quality carbon structural steel, appropriate to add one or more alloy elements (the total content is not more than 5%) and made of steel.

40CrNi2Mo Equivalent Steel Grades:

40CrNi2Mo Mechanical property:

Tensile strength σ B (MPA): ≥ 980 (100)

Yield strength σ s (MPA): ≥ 835 (85)

Elongation δ 5 (%): ≥ 12

Reduction of area ψ (%): ≥ 55

Impact energy Akv (J): ≥ 78

Impact toughness value α kV (J / cm2): ≥ 98 (10)

Hardness: ≤ 269HB

37SiMn2MoV QT STEEL

37SiMn2MoV steel is an advanced quenched and tempered steel with excellent comprehensive properties, high hardenability and high strength and toughness after quenching and tempering. It can be used as replacement of 35CrMo, 40CrNiMo and other steels. This kind of steel can be used as ultra-high strength steel after quenching and low temperature tempering.

37SiMn2MoV equivalent steel grades:

37SiMn2MoV Mechanical Properties:
Tensile strength σ B (MPA): ≥ 980 (100)
Yield strength σ s (MPA): ≥ 835 (85)
Elongation δ 5 (%): ≥ 12
Reduction of area ψ (%): ≥ 50
Impact energy Akv (J): ≥ 63
Impact toughness value α kV (J / cm2): ≥ 78 (8)
Hardness: ≤ 269HB

31CrMoV9 nitriding steel

31CrMoV9 is a nitriding steel which has at least 2.3%Cr, 0.15%Mo, 0.1%V as strengthening alloy elements.
Due to its high wear resistance,it is mainly used in the automotive industry and general components mechanical engineering.

31CrMoV9 equivalent steel grades:

31CrMoV9 mechanical properties:

30CrMnSiNi2A alloy structural steel

After heat treatment, 30CrMnSiNi2A alloy structural steel can obtain high strength, good plasticity and toughness, good fatigue resistance and fracture toughness, and low fatigue crack growth rate.

30CrMnSiNi2A mechanical properties:

Tensile strength σ B (MPA): 1) 1767; 2) 1627
Elongation δ 5 (%): 1) 12; 2) 13
Reduction of area ψ (%): 50
Impact toughness value α Ku (J / cm2): 1) 79; 2) 90

40Cr engineering steel

40Cr steel is one of the most widely used steels in mechanical manufacturing industry. After quenching and tempering, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. Except from quenching and tempering, the steel is also suitable for cyaniding and high frequency quenching. When the hardness is 174-229hb, the relative machinability is 60%.

The steel is easy to be processed and certain toughness, plasticity and wear resistance can be obtained after proper heat treatment. Normalizing can promote the microstructure refinement, close to the equilibrium state, and improve the cutting performance of the blank. The steel has the best comprehensive mechanical properties when tempered at 550 ~ 570 ℃. The hardenability of the steel is higher than that of 45 steel, which is suitable for high frequency quenching, flame quenching and other surface hardening treatment.

40Cr equivalent grade:

40Cr Mechanical Properties:

Tempering heating temperature (℃): 520;
Tensile strength (σ B / MPA): ≥ 810 (when the actual hardness is 25hrc)
Yield point (σ s / MPA): ≥ 785
Elongation after fracture (δ 5 /%): ≥ 9
Reduction of area (ψ /%): ≥ 45
Shock absorption energy (aku2 / J): ≥ 47
Brinell hardness (100 / 3000hbw) (annealed or tempered at high temperature): ≤ 207

25Cr2MoV Alloy steel

25Cr2MoV steel has good intergranular corrosion resistance, excellent corrosion resistance and cold working stamping performance. It has strong corrosion resistance to oxidizing acid (such as nitric acid), alkali solution and most organic and inorganic acids.

Due to its proper hardenability, the microstructure of the alloy is homogeneous sorbite, bainite or very fine pearlite after proper metal heat treatment. Therefore, 25Cr2MoV has higher tensile strength and yield ratio, higher toughness and fatigue strength, and lower toughness and brittle transition temperature.
Generally, the steel material can be used in the state of quenching and tempering, and can also be used after normalizing and high temperature tempering.

25Cr2MoV  steel mechanical properties:

Tensile strength σ B (MPA): 1090
Yield strength σ s (MPA): 1042
Elongation δ 5 (%): 18
Reduction of area ψ (%): 63
Impact toughness value α Ku (J / cm2): 213
Hardness: 308HB

36CrNiMo4 alloy structural steel

36CrNiMo4 is an alloy structural steel. As a property of 36CrNiMo4 steel, density is closely related to the composition of 36CrNiMo4 steel.

36CrNiMo4 steel equivalent grade:

36CrNiMo4 mechanical properties:

Tensile strength σ B (MPA): ≥ 980 (100)
Yield strength σ s (MPA): ≥ 835 (85)
Elongation δ 5 (%): ≥ 12
Impact energy Akv (J): ≥ 78
Impact toughness value α kV (J / cm2): ≥ 98 (10)
Hardness: ≤ 269HB