3dmetal - 3D-METAL.TECH - 2ページ目 (8ページ中)

SUH3 Steel: 10Cr-2Si Martensitic Heat-Resistant Steel for Diesel Exhaust Valves

SUH3 is a 10%Cr, 2%Si martensitic heat-resistant steel used in diesel and heavy-duty engine exhaust valves. Max service ~800°C. Covers composition, heat treatment (950–1050°C harden + 700–800°C temper), mechanical properties vs temperature, silicon's oxidation role, and comparison with SUH1, SUH4, and austenitic valve grades.

2026.06.05

steel

SPCC Cold-Rolled Steel Sheet: JIS G3141 Explained — Properties, Surface Finish, and ASTM Equivalent

SPCC is Japan's general-purpose cold-rolled steel sheet under JIS G3141. No minimum tensile strength is specified — only elongation and chemical composition. Full guide with ASTM A1008 and EN 10130 DC01 equivalents, surface finish codes, and selection against SPCD/SPCE.

2026.06.05

steel

SPCE Deep-Drawing Cold-Rolled Steel: JIS G3141 Grade for Complex Stampings

SPCE is the deep-drawing grade in JIS G3141 cold-rolled steel — lower carbon and phosphorus than SPCC, with r-value ≥ 1.4 and elongation ≥ 42%. Use it when SPCC tears or thins excessively in deep draws. Full guide with ASTM DDS and EN DC04 equivalents.

2026.06.04

steel

DC53 Tool Steel: Modified D2 with Secondary Hardening — High Toughness Cold-Work Die Steel

DC53 is a modified D2-type cold-work die steel with 8% Cr and secondary hardening at 520°C — delivers SKD11-level wear resistance at ~2× toughness. Full guide: composition, heat treatment, EDM performance, and when DC53 outperforms SKD11.

2026.06.04

steel

SPHC Hot-Rolled Steel Sheet: JIS G3131 Explained — Properties, Scale, and ASTM Equivalent

SPHC is Japan's general-purpose hot-rolled steel sheet under JIS G3131. Thicker than cold-rolled, with mill scale surface and a specified minimum tensile strength of 270 MPa. Full guide with ASTM A1011 CS and EN 10111 DD11 equivalents.

2026.06.03

steel

SN400 / SN490 vs A992: Seismic Structural Steel Equivalent Grades & Properties

SN400 and SN490 vs ASTM A992 equivalent grades, Fy/Fu ratio control, Charpy impact requirements, and seismic structural applications. JIS G3136 complete properties guide.

2026.06.03

steel

Annealing Types Explained: Full, Process, Spheroidize, Stress-Relief, and Normalizing

Five annealing treatments — full, process, spheroidize, stress-relief, and normalizing — serve different goals at different temperatures. Complete selection guide with temperature ranges, microstructure effects, and application decision tree.

2026.06.03

Heat Treatment

JIS SNCM439 Steel: AISI 4340 Equivalent — Ni-Cr-Mo Alloy Steel for Heavy-Section Parts

JIS SNCM439 is a Ni-Cr-Mo high-hardenability alloy steel nearest to AISI 4340 and EN 36CrNiMo4. Explore composition, mechanical properties, heat treatment, and selection vs. SCM440.

2026.06.02

Heat Treatment

Carburizing vs. Induction Hardening: Which Surface Treatment to Choose

Compare carburizing and induction hardening for surface-hardened steel parts. Understand case depth, suitable materials, cost, and when to choose each process.

2026.06.02

Heat Treatment

JIS SUJ2 Steel: 52100 Equivalent — High-Carbon Chromium Bearing Steel

SUJ2 (JIS G4805) is Japan's 52100-equivalent high-carbon chromium bearing steel — 1.0% C / 1.5% Cr, hardens to 62–65HRC. Full guide: 100Cr6 equivalent, heat treatment, cryogenic processing, and bearing fatigue life.

2026.06.01

steel