steel JIS S30C Steel: AISI 1030 Equivalent, Properties & Heat Treatment
JIS S30C steel equivalent to AISI 1030 and DIN C30. Covers composition, mechanical properties, through-hardening, and when to choose it over S25C or S35C.
steel 
steel SUP9 Spring Steel: Equivalent Grades, Properties & Heat Treatment Guide
SUP9 (JIS G4801) Cr spring steel: equivalents (SAE 5160, DIN 55Cr3), chemical composition, mechanical properties, heat treatment, and coil spring applications.
steel SUP6 Spring Steel: Equivalent Grades, Properties & Heat Treatment Guide
SUP6 (JIS G4801) Si-Mn spring steel: equivalents (SAE 9260, EN 60Si7), chemical composition, mechanical properties, heat treatment, and leaf spring applications.
steel JIS SM490 Steel: ASTM A572 Gr.50 Equivalent, Properties & Welding Guide
SM490 (JIS G3106) is Japan's weldable structural steel. Learn its ASTM A572 Gr.50 and EN S355 equivalents, chemical composition, mechanical properties, and welding guidelines.
steel SCM415 Steel: International Equivalent Grades, Properties & Heat Treatment
SCM415 (JIS G4105) equivalent grades, chemical composition, mechanical properties, heat treatment conditions and applications for carburizing steel.
steel SS490 vs A572 Gr.60: International Equivalent Grades, Properties & Selection Guide
SS490 vs ASTM A572 Gr.60 equivalent grades, chemical composition, mechanical properties, and critical yield strength differences. JIS G3101 structural steel applications guide.
steel SCr435 Steel: International Equivalents, Properties & Heat Treatment Guide
SCr435 equivalent grades (AISI 5135, DIN 34Cr4), chemical composition, mechanical properties, and heat treatment. Full metric and imperial data for manufacturing engineers.
steel SUS304 Stainless Steel: AISI 304 / 1.4301 Equivalent, Properties & Applications
SUS304 (JIS G4303) is Japan's most-used austenitic stainless steel. Full guide: AISI 304 / 1.4301 equivalents, composition, properties, corrosion limits, and welding.
steel SCM435 vs SCM440: How to Choose the Right Cr-Mo Grade for Your Application
SCM435 vs SCM440: carbon content is the only difference, but it determines temper window, surface hardness, and global availability. Full comparison with decision guide.
steel JIS S25C Steel: AISI 1025 Equivalent, Properties & Applications
JIS S25C is a low-to-medium carbon steel equivalent to AISI 1025 and DIN C25. Learn its composition, mechanical properties, heat treatment, and selection guide.