30CrMnSi is a low-alloy high-strength structural steel, with its excellent high strength, good toughness, hardenability and welding performance, widely used in aerospace, machinery manufacturing, automotive industry, energy equipment and other fields. The following detailed analysis from the chemical composition, mechanical properties, heat treatment process, core properties, application areas and notes, etc.
30CrMnSi steel plate chemical composition 30crmnsia wire30crmnsi wire30crmnsi round steel30crmnsi seamless pipe
Carbon content C: ≤0.28~0.34
Silicon content Si: ≤0.90~1.20
Manganese content Mn: ≤0.80~1.10
Phosphorus content P: ≤0.025
Sulfur content S: ≤0.025
Copper content Cu: ≤0.025
Chromium content Cr: 0.80~1.10
Nickel content Ni:≤0.030
30crmnsia wire30crmnsi wire30crmnsi round steel30crmnsi seamless pipe Mechanical properties [heat treatment
Quenching heating temperature (ºC): 880; Coolant: oil
Tempering heating temperature (ºC): 520; Coolant: water, oil
Mechanical properties
Tensile strength (σb/MPa): ≥1100
Yield point (σs/MPa): ≥800
Post-break elongation (δ5/%): ≥10
Section shrinkage (ψ/%): ≥45
Impact absorption work (Aku2/J): ≥50
Brinell hardness (HBS100/3000) (annealed or high-temperature tempered state): ≤229
Main Characteristics
30crmnsi coil
30crmnsia wire
30crmnsi coiled wire
30crmnsi steel wire
30crmnsi round steel
Applications are used in the manufacture of high load, high speed of a variety of important parts, such as gears, shafts, clutches, sprockets, grinding wheel shafts, bushings, bolts, nuts, etc., but also used in the manufacture of wear-resistant, working temperature is not high parts, variable load welding components, such as high-pressure blower blades, valve plates, and non-corrosive pipeline tubes.
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30CrMnSi steel plate chemical composition 30crmnsia wire30crmnsi wire30crmnsi round steel30crmnsi seamless pipe
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