1.6582 | 4337 | SNCM447
1.6582 is a Cr-Ni-Mo quenched and tempered alloy structural steel offering high strength, good toughness, excellent hardenability and fatigue resistance.
Available Form
Round Bar
Custom Diameter & Length
Flat Bar
Custom Thickness, Width & Length
Square Bar
Custom Width & Length
Steel Plate
Custom Thickness, Width & Length
Steel Grade Comparison(wt%)
| W-Nr | EN | AISI | JIS |
| 1.6582 | G34CrNiMo6 | 4337 | SNCM447 |
Chemical Composition
| C | Si | Mn | P | S | Cr | Mo | Ni |
| 0.30~0.38 | ≤0.4 | 0.40~0.70 | ≤0.035 | ≤0.030 | 1.40~1.70 | 0.15~0.30 | 1.40~1.70 |
Physical Properties
Density（g/cm3)：7.73~7.85
Modulus of Elasticity（Gpa): 190~210
Thermal Conductivity（W/（m.k)): 40~42.6
Heat Treatment Process
Hardening: Heat the steel evenly to 830~860°C until the whole section reaches temperature. Then quench in oil to cool.
Annealing: Heat the steel to 650-680°C, hold it well at temperature, and then let it cool slowly inside the furnace.
Tempering: Tempering temperature 540-660°C
Application Fields
Applications: High-pressure fasteners, crankshafts, camshafts, torsion bars, shafts, conveyor rollers, valve stems, tie rods, clutch discs, large hot stamping dies. Aerospace structural components including flaps, fuselage, landing gear and propeller shafts.
Disclaimer: the information and data presented herein are typical values for reference and are not intended as warranties to readers.
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