Supreme Steels

30KHRA

Product Description:

30KHRA is a high-strength alloy steel known for its exceptional hardness, toughness, and resistance to wear and fatigue. This steel is primarily used in demanding applications that require a combination of high mechanical strength and resistance to thermal and wear stresses. It is commonly used in manufacturing parts such as gears, shafts, bolts, and other mechanical components exposed to high levels of stress, wear, and cyclic loading. The alloy is well-suited for heavy-duty industries such as automotive, machinery, aerospace, and heavy equipment.

Features:

Specifications:

Composition of 30KHRA Steel:

Element Percentage
Carbon (C) 0.28 – 0.35%
Manganese (Mn) 0.60 – 0.90%
Silicon (Si) 0.15 – 0.40%
Chromium (Cr) 0.90 – 1.20%
Nickel (Ni) 1.50 – 2.00%
Phosphorus (P) 0.035% Max
Sulfur (S) 0.035% Max
Iron (Fe) Balance

Physical Properties:

Property Value
Density 7.85 g/cm³
Melting Point 1450°C (2642°F)
Hardness (Brinell) 200-250 HB
Tensile Strength 750-950 MPa (108,000-138,000 psi)
Yield Strength 550-750 MPa (80,000-108,000 psi)
Elongation 12-18%
Modulus of Elasticity 210 GPa
Thermal Conductivity 46 W/m·K
Coefficient of Thermal Expansion 11.5 × 10⁻⁶ /°C