carbon-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

SS400, S45C & SCM435: Steel Selection Guide for Mechanical Designers

SS400 (≈A36), S45C (≈1045), SCM435 (≈4135): learn how to choose the right JIS steel for your design. Includes chemical composition comparison, hardenability data, failure cases, and sourcing tips for engineers outside Japan.

2026.05.29

steel

JIS S50C Steel: AISI 1050 Equivalent, Properties & Heat Treatment Guide

Complete guide to JIS S50C steel: AISI 1050 and DIN C50 equivalents, chemical composition, mechanical properties, heat treatment, machinability, and common mistakes.

2026.05.15

steel

S53C Steel: International Equivalent Grades, Properties & Heat Treatment Guide

S53C equivalent grades, chemical composition, mechanical properties, heat treatment, and applications for induction hardening. JIS, AISI 1053, DIN C55 comparison.

2026.05.14

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.

2026.05.14

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.

2026.05.11

steel

JIS S20C Steel: AISI 1020 Equivalent, Properties & Heat Treatment

JIS S20C is a low-carbon structural steel equivalent to AISI 1020 and DIN C22. Learn its chemical composition, mechanical properties, and carburizing guide.

2026.05.10

steel

JIS S58C Steel: AISI 1060 Equivalent — High-Carbon Grade for Wear-Resistant Parts

JIS S58C is a high-carbon steel equivalent to AISI 1060 and DIN C60. Learn its composition, mechanical properties, hardening characteristics, and applications in wear-resistant and tool-adjacent components.

2026.05.10

steel

JIS S55C Steel: AISI 1055 Equivalent, Properties & Spring Applications

JIS S55C is a high-carbon steel equivalent to AISI 1055 and DIN C55. Learn its composition, mechanical properties, heat treatment for springs and wear parts, and selection guide.

2026.05.10

steel

JIS S43C Steel: AISI 1043 Equivalent — Bridging Grade Between S40C and S45C

JIS S43C is a medium-carbon steel equivalent to AISI 1043 and DIN C45. Learn its composition, mechanical properties, induction hardening data, and where it fits between S40C and S45C.

2026.05.10

steel