Stainless Steel Door
- Commodity name： Stainless Steel Door
- 200 Series
- 300 Series
- 400 Series
-
Stainless Steel Grades Comparison Table
Grade
Characteristics
Applications
410
Heat-treatable for hardening, moderate corrosion resistance, good strength
Bolts, shafts, turbine blades, valve parts
410S
Ultra-low carbon, excellent weldability, soft, non-hardenable
Furnace components, sheet metal fabrications, annealing containers
420J1
Medium-high carbon, high hardness, wear resistance
Cutlery, surgical instrument blades, utility blades
420J2
Higher carbon than J1, maximum hardness (>J1), lower toughness
High-wear cutting tools, precision components, razor blades
440
Highest carbon content (~1%), ultimate hardness/wear resistance
Premium surgical tools, bearings, precision mold components
409L
Lowest cost, thermal fatigue resistance, basic corrosion resistance
Automotive exhaust systems (manifolds/front pipes), mufflers
430
Excellent formability, oxidation resistance, cost-effective
Appliance surfaces (liners/housings), architectural trim, tableware
439
Ti-stabilized, corrosion resistance ≈304, superior weldability
Corrosion-resistant exhausts, water heater tanks, dishwasher components
441
Nb-stabilized, optimal high-temperature strength, fatigue resistance
High-performance thin-wall exhausts, fuel cell components
Performance Ranking
Property
Ranking (Best → Poorest)
Hardness
440 > 420J2 > 420J1 > 410 > 430/439/441 > 410S/409L
Corrosion Resistance
439/441 ≈ 304 > 440 > 430 > 420 series > 410 > 409L
Weldability
439/441/409L/410S > 430 > 410 > 420 series > 440
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