10B38

Alloy Steel

10B38

(AISI/SAE custom). Nominal values—confirm mill certificate.

Chemical Composition (%)

C0.07
P0.035
S0.035

Mechanical Properties

Tensile:≥510 MPa;Yield:≥295 MPa;Elong:≥20%

Equivalent Grades

SAE custom 10B38

Available Forms

Bar,Plate

Uses

Low-carbon grade used for welded structures, shafts, pins, bolts, nuts, seamless tubes and general engineering components where moderate strength and good weldability are required. Commonly supplied as bar, plate, sheet, tube and forging.

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.

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).

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