carburizing

steel

JIS G4103 Ni-Cr-Mo Steel Guide: SNCM Grade Comparison from SNCM220 to SNCM815

JIS G4103 covers 11 Ni-Cr-Mo structural steel grades — SNCM220 to SNCM815. Full guide: composition table, Ni content vs section size selection, carburizing vs through-hardening grades, and ASTM equivalents.
2026.06.10
steel
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
steel

SUH310 Steel: AISI 310S Equivalent — Austenitic Heat-Resistant Steel for Furnace Applications up to 1100°C

SUH310 is 25Cr-20Ni austenitic heat-resistant steel for service up to 1100°C — the highest-temperature standard JIS grade for load-bearing furnace applications. Full guide with composition, creep data, carburizing atmosphere limitations, and comparison with SUH309 and SUH330.
2026.06.01
steel
steel

JIS SCr420 Steel: AISI 5120 Equivalent — Chromium Carburizing Grade for Gears & Pins

Full guide to JIS SCr420 steel: AISI 5120 and DIN 20Cr4 equivalents, carburizing heat treatment, case/core properties, machinability, and section size limits.
2026.05.15
steel