Supreme Steels

H12

Product Description:

H12 is a chromium-based hot work tool steel known for its excellent resistance to thermal fatigue, wear, and softening at elevated temperatures. It is primarily used for making tools that operate at high temperatures, such as molds, dies, and other equipment used in hot working processes. H12 has a balanced composition of chromium, molybdenum, and vanadium, which provide it with high strength, heat resistance, and wear resistance, making it ideal for applications in die-casting, extrusion dies, and forging tools. It can withstand high-temperature environments and maintain its hardness and toughness, even under stress.

Features:

Specifications:

Composition of H12 Tool Steel:

Element Percentage
Carbon (C) 0.35 – 0.45
Chromium (Cr) 4.75 – 5.50
Molybdenum (Mo) 1.20 – 1.50
Vanadium (V) 0.80 – 1.10
Manganese (Mn) 0.25 – 0.50
Silicon (Si) 0.80 – 1.00
Phosphorus (P) 0.03% max
Sulfur (S) 0.03% max
Iron (Fe) Balance

Physical Properties:

Property Value
Density 7.85 g/cm³
Melting Point 1450°C (2642°F)
Hardness (Rockwell C) 50-55 HRC
Tensile Strength (Ultimate) 1900 MPa (275,000 psi)
Yield Strength 1650 MPa (239,000 psi)
Elongation 8-10%
Modulus of Elasticity 210 GPa