1.0038

Alloy Steel

1.0038

1.0038 supplied by Shanxi Youte Steel (jlhsteel.net).

Chemical Composition (%)

C0.17
MN1.4
SI0.5
S0.045
P0.045

Chinese Standard

EN 10025

Equivalent Grades

S235JR

Available Forms

Bar, Plate, Tube, Forging, Wire

Uses

Carburizing (case-hardening) steel with low carbon core for toughness and a hard, wear-resistant surface after carburizing. Used for gears, camshafts, pinions, spline shafts, bushings and transmission parts subjected to fatigue and surface wear.

Heat Treatment

Typically normalized (880–920 °C, air cool) or carburized (900–930 °C) for case-hardening grades, then quenched and tempered at 150–200 °C. Carburize 900–930 °C, direct/intake quench, temper 150–200 °C; useful case depth 0.5–1.5 mm.

Precautions

Weldable with standard procedures; preheat may be needed for thick sections or higher-carbon/ alloy grades. Protect from decarburization during heating (controlled atmosphere or protective coating). Machine the core stock before surface hardening; leave grinding allowance for the hardened case.

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