Stainless Steel Grade Dictionary｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）

Below are every stainless grade we keep in stock. Open any one like a steel dictionary: performance, standards across countries, composition, where it fits, its traits, and the pitfalls to avoid — all in one view.

Austenitic

11个牌号

201Low-nickel austenitic, economical 304 substitute 202Low-nickel austenitic, slightly more resistant than 201 301High work-hardening, excellent spring and strength 304The most common 18-8 austenitic stainless 304LLow-carbon 304, better intergranular corrosion resistance 309High Cr-Ni, heat and oxidation resistant 310S25-20 high-nickel, top heat resistance 316LMolybdenum-bearing, first choice against chloride pitting 316TiTitanium-stabilized 316, intergranular-resistant after welding 321Titanium-stabilized, resistant to high-temp sensitization 904LSuper-austenitic, resistant to reducing acids

Ferritic

9个牌号

409Cheapest heat-resistant ferritic, auto exhaust 429Aluminium-stabilized ferritic, heat-oxidation resistant 430The most common decorative ferritic 436430 plus molybdenum, more stable ferritic 439Ti-stabilized 18Cr, weld-resistant ferritic 441Ti+Nb dual-stabilized 18Cr, heat-fatigue resistant 443High-Cr ferritic, upgraded 430 corrosion resistance 44522Cr+Mo ferritic, high chloride pitting resistance 44419Cr-2Mo ferritic, preferred for water tanks

Martensitic

3个牌号

410Entry martensitic, quench-hardenable 420High-carbon martensitic, cutlery and wear 420U6High-carbon hardened martensitic, specialty cutlery stock

Duplex

2个牌号

2205Duplex, first choice for chloride stress corrosion 2507Super duplex, extreme chloride resistance

Precipitation Hardening

1个牌号

630Precipitation hardening, high strength and weldable

This article is written by @Stainless Insights. @Stainless Insights is the technical byline of Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司） (focused on specialty stainless steel selection and import substitution), with nearly 20 years in stainless processing and selection in Foshan. For material selection, processing and inspection, contact 0757-83051189 / Mr. He 13703060845.

Spell out the working conditions — we handle the rest

Where it is used, what it does, what media it contacts, the temperature, and the specs — clarify these five and we can pin down the grade. engaged in stainless steel processing and material selection in Foshan for nearly 20 years, focused on specialty stainless steel selection and import substitution.