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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 SUP7 Steel: SAE 9255 Equivalent — Si-Mn Spring Steel for Heavy-Duty Leaf Springs

JIS SUP7 is a Si-Mn alloy spring steel (JIS G4801) nearest to SAE 9255. Explore chemical composition, mechanical properties, heat treatment, and how it compares to SUP6 and SUP12.
2026.05.30
steel
steel

JIS SUP3 Steel: SAE 1075 Equivalent — High-Carbon Spring Steel for Thin-Section Applications

JIS SUP3 is a high-carbon spring steel (JIS G4801) nearest to SAE 1075/1080. Learn composition, mechanical properties, heat treatment, and when to choose it over alloy spring grades.
2026.05.29
steel
steel

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
steel

JIS SUP12 Steel: SAE 9262 Equivalent — Si-Cr Spring Steel for High-Fatigue Applications

JIS SUP12 is a Si-Cr alloy spring steel nearest to SAE 9262. Explore chemical composition, mechanical properties, heat treatment, and selection tips vs. SUP7.
2026.05.27
steel
steel

JIS SUP11A Steel: SAE 5160H Equivalent — Mn-Cr-B Spring Steel for Large-Section Springs

JIS SUP11A is a Mn-Cr-B alloy spring steel (JIS G4801) nearest to SAE 5160H. Learn composition, mechanical properties, heat treatment, and why boron makes it ideal for large cross-section springs.
2026.05.27
steel
steel

JIS SUP10 Steel: SAE 6150 Equivalent — Cr-V Spring Steel for Precision and Aerospace Springs

JIS SUP10 is a Cr-V alloy spring steel (JIS G4801) nearest to SAE 6150 and EN 51CrV4. Discover composition, mechanical properties, heat treatment, and when to choose it for high-performance springs.
2026.05.26
steel
steel

SS400 vs SM400: Why Japan’s Two “Same-Strength” Structural Steels Are Not Interchangeable

SS400 and SM400 have identical tensile strength, yet engineers in Japan treat them as completely different materials. Learn why — and what to order outside Japan.
2026.05.26
steel
steel

SNCM625 Steel: International Equivalents, Properties & Heat Treatment Guide

SNCM625 equivalent grades (DIN 34CrNiMo6, AISI 4340), chemical composition, mechanical properties, and heat treatment for large-section shafts. Metric and imperial data included.
2026.05.25
steel
steel

SNCM415 Steel: International Equivalents, Properties & Carburizing Guide

SNCM415 equivalent grades (AISI 4320, DIN 18CrNiMo7-6), chemical composition, carburized case and core properties, and heat treatment. Full metric and imperial data for engineers.
2026.05.25
steel
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