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1. Austenitic stainless steel

Common grades: 304 (06Cr19Ni10)

Composition: 18% chromium, 8% nickel.

Features: non-magnetic, good corrosion resistance, high toughness, easy to process and weld.

Uses: food industry, chemical equipment, medical equipment, architectural decoration, etc.

(2) Common grades: 304L (022Cr19Ni10)

Composition: 18% chromium, 8% nickel, low carbon (≤0.03%)

Features: low carbon version, not easy to produce intergranular corrosion after welding.

Uses: welding parts, chemical equipment, medical equipment.

(3) Common brand: 316 (06Cr17Ni12Mo2)

Ingredients: 16% chromium, 10% nickel, 2% molybdenum.

Features: better corrosion resistance than 304, especially resistance to chloride ion corrosion.

Uses: marine engineering, chemical equipment, medical equipment.

2. Ferritic stainless steel

Common grades: 430 (10Cr17)

Composition: 16% chromium.

Features: magnetism, medium corrosion resistance, high strength, low cost.

Usage: Household appliances, car exhaust pipes, kitchen equipment, etc.

3.Martensitic stainless steel

Common grades: 410 (12Cr13).

Composition: 12% chromium.

Features: magnetism, high hardness, good wear resistance, but poor corrosion resistance.

Uses: knives, surgical instruments, mechanical parts, etc.

4. Duplex stainless steel

Common grades: 2205 (022Cr23Ni5Mo3N)

Composition: 22% chromium, 5% nickel, 3% molybdenum.

Features: mixed structure of austenite and ferrite, with both high strength and high corrosion resistance.

Uses: marine engineering, chemical equipment, oil and gas pipelines, etc.

5.Precipitation hardening stainless steel

Common brands: 17-4PH (05Cr17Ni4Cu4Nb)

Ingredients: 17% chromium, 4% nickel, 4% copper, niobium (Nb) added

Features: High strength is obtained through heat treatment while maintaining a certain corrosion resistance.

Uses: aerospace, nuclear industry, high-end mechanical parts, etc.

Choosing the right stainless steel grade can maximize its performance advantages