Steel Products Catalog

SKD61 · H13 · X40CrMoV5-1 (1.2344)

Premium hot work die steel with excellent thermal fatigue resistance and high-temperature toughness. The global standard for die casting and hot forging.

Tiangong's exclusive advanced hot work die steel engineered for superior thermal fatigue resistance and extended die life in high-pressure die casting applications.

SKD11 · D2 · X153CrMoV12 (1.2379)

High-chromium cold work die steel with exceptional wear resistance and dimensional stability. The international standard for high-volume stamping and blanking dies.

SKS3 · O1 (approximate) · 90MnCrV8 (1.2842, approximate)

Oil-hardening cold work tool steel offering good toughness, wear resistance, and minimal distortion — a versatile choice for jigs, gauges, and precision cutting tools.

Tiangong's exclusive high-performance cold work die steel, engineered to deliver longer die life than standard D2/SKD11 through superior toughness and an optimized carbide distribution.

1.2311 (40CrMnMo7) · P20 · 3Cr2Mo

Pre-hardened plastic mould steel (28–34 HRC) suitable for medium-to-large injection mould bases and inserts. No heat treatment required after machining.

1.2738 (40CrMnNiMo8-6-4) · P20+Ni · 3Cr2MnNiMo

Enhanced pre-hardened plastic mould steel with nickel addition for improved through-hardness in large sections, better polishability, and superior toughness versus 2311.

Tiangong's exclusive premium plastic mould steel, pre-hardened to 38–42 HRC with exceptional mirror polishability for optical and high-gloss injection mould applications.

SCM440 · 4140 · 42CrMo4 (1.7225)

Chromium-molybdenum alloy steel for high-strength shafts, gears, and structural parts. Excellent combination of strength, toughness, and fatigue resistance in the quenched and tempered condition.

4140 (Q&T condition) · SCM440 (Q&T condition) · 42CrMo4 (Q&T, 1.7225)

AISI 4140 chromium-molybdenum steel supplied in the quenched and tempered condition (28–34 HRC) — ready for machining into high-strength components without further heat treatment.

4340 · SNCM439 · 36CrNiMo4 (1.6511)

Nickel-chromium-molybdenum alloy steel supplied in the Q&T condition — offering the highest strength and toughness combination among our alloy bar grades, ideal for heavy-duty shafts and critical structural components.

S45C · 1045 · C45 (1.0503)

Standard medium-carbon steel round bar for general machinery components. Widely available, readily machinable, and heat-treatable — the workhorse of industrial manufacturing.

S50C · 1050 · C50 (1.0540)

Medium-high carbon steel plate with higher hardness and wear resistance than S45C. Suitable for machine beds, wear plates, structural plates, and base components.

SS400 · A36 (ASTM, approximate) · S235JR (1.0038, EN 10025)

General-purpose structural steel plate with guaranteed minimum tensile strength of 400 MPa. Excellent weldability, formability, and availability — the standard choice for fabrication and general structural applications.