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Standard: GB/T 3077
Description: 35CrNiMoV steel is a high-strength alloy steel widely recognized for its exceptional mechanical properties and versatility in demanding industrial applications. 35CrNiMoV alloy steel primarily used in China under the GB/T 3077 standard,it is engineered fo...
35CrNiMoV steel is a high-strength alloy steel widely recognized for its exceptional mechanical properties and versatility in demanding industrial applications. 35CrNiMoV alloy steel primarily used in China under the GB/T 3077 standard,it is engineered for components requiring superior toughness, wear resistance, and fatigue strength. Unlike common carbon steels, 35CrNiMoV incorporates alloying elements such as chromium, nickel, molybdenum, and vanadium, which enhance its performance under extreme conditions.
35CrNiMoV can be processed into various steel types and dimensions to meet specific industrial needs.
- Round bars: Diameter ranging from 20 mm to 500 mm
- Plates: Thickness from 10 mm to 200 mm, width up to 2500 mm
- Tubes: Outer diameter from 50 mm to 300 mm, wall thickness from 5 mm to 50 mm
The chemical makeup of 35CrNiMoV alloy steel is critical to its enhanced properties.
Element | C | Si | Mn | Cr | Ni | Mo | V | P (max) | S (max) |
---|---|---|---|---|---|---|---|---|---|
Content (%) | 0.32-0.40 | 0.17-0.37 | 0.50-0.80 | 1.00-1.40 | 1.25-1.75 | 0.25-0.35 | 0.10-0.20 | 0.025 | 0.025 |
The mechanical performance of 35CrNiMoV makes it suitable for heavy-duty applications.
Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Toughness (J) | Hardness (HB) |
---|---|---|---|---|---|
Value | ≥980 | ≥835 | ≥12 | ≥78 | 269-331 |
35CrNiMoV alloy steel corresponds to several international steel grades, allowing for global interchangeability in design and manufacturing. The equivalents are as follows:
Country/Standard | Equivalent Grade |
---|---|
Germany (DIN) | 34CrNiMo6 |
USA (AISI/SAE) | 4340 |
Japan (JIS) | SNCM439 |
35CrNiMoV is extensively used in industries requiring high-performance materials. It is ideal for manufacturing critical components subjected to heavy loads and dynamic stresses. Common applications include:
- Power Generation: Turbine shafts, rotor components, and generator parts.
- Heavy Machinery: Crankshafts, connecting rods, and gears.
- Automotive Industry: Axles and transmission components.
- Aerospace: Structural parts requiring high fatigue resistance.
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