500 Internal Server Error

nginx/1.27.5
500 Internal Server Error

500 Internal Server Error

nginx/1.27.5
B24 · General Components

General Part Pool (High Frequency Parts Across Industries) with Stainless Steel Sheets: 304/316L Selection and 11 Item Lists

In the General Part Pool (High Frequency Parts Across Industries), we have organized 11 stainless steel parts commonly used: 304, 316L, or 316. Thickness ranges from 0.025–500 mm.

Describe operating conditions and get material recommendationsView Products
Stainless Steel Cold Rolled Sheets, Plates, and Fastener Flanges in Stock
Metal products: Cold rolled sheets, plates, fasteners, and flanges (Illustration; actual selection based on media, temperature, and drawings)

11 Item Lists and Material Recommendations

Item / PartRecommended GradeSpecifications / ThicknessSurfaceMain Failure ModesReference Standards
Flanges (Welded/Butted/Nonspec)304/304L/316/316L/321/2205DN15–DN600；PN10–PN1002B/Die-Smooth/Acid-StripLeakage at Sealing Surface + Intergranular Corrosion in Weld Heat-Affected Zone + Chloride Stress Corrosion CrackingGB/T 9115/9119；NB/T 47010
Pipe Fittings (Elbows/Tees/Diaphragms/Cardinals)304L/316L/321/310SDN15–DN1200Acid Strip/2BErosion-Under-Filming+Welding Intergranular Corrosion+High-Temperature OxidationGB/T 12459；GB/T 12771；GB/T 19228.1
Fasteners (Nuts/Bolts/Nails/Screws)302/303/304/305/316/A2-70/A4-70M3–M64Brighten/Original Color/Layer CoatingChloride Stress Corrosion Cracking+Fretting Corrosion+Hydrogen Embrittlement+FatigueGB/T 3098.6；ISO 3506
Springs (Disc Springs/Wave Springs/Precision Small Springs)301/304/316/17-7PHSheet 0.05–3.0mmLustrous/2BStress Relaxation+Fatigue Fracture+CorrosionGB/T 1972；GB/T 24588
Bearings (Roller Bearings/Rollers/Sleeves)440C/304Keep GuardCircle 1-20mmQuenched + PolishedContact Fatigue + Corrosion PittingGB/T 308.1；GB/T 1220
Filter Materials (Woven Fabric/Braided Net/Sintered Mesh/Filters)304/316/316L/904L20-500 Mesh; Wire Diameter 0.025-0.5mmLustrous / Acid Etching / ElectrolyticBlockage + Wear + Cl⁻ CorrosionGB/T 17492；GB/T 3280
Heat Exchangers (Tube Shell/Plate/Wing Type)304/316L/2205/2507Tube φ10-50mm; Plate 0.4-1.0mmEtching / Brightening / RollingCl⁻ Pitting Hole + Crevice Corrosion + Tube Bundle FatigueGB/T 151；NB/T 47004
Storage Tanks/Reactors/Batch Mixers304L/316L/904L/22053–30mm2B / Acid Etching / ElectroplatingMedium Corrosion + Welding Intergranular Corrosion + Mixing FatigueNB/T 47003.1；GB/T 3280
Conveyor Belts / Net Chains / Chain Plates304/316/310S/314Diameter 1-3mm, Link Plate 0.8-2.0mm2B/OpenHole, Polished/OpenHoleCreep + Wear + Thermal FatigueGB/T 17492；GB/T 3280
Rollers (conveying/offset/printing/furnace/pillow)304/316L/2205/310S3-30mm RollMirror/Die-silk/Grooved surfaceWear, Corrosion, High-temperature Oxidation, Thermal Fatigueaccording to equipment standard
Cutting Tools/Saw Blades (Food/Medical/Lumber/Paper)420/440A/440C/9Cr181–12mmQuenched and PolishedWear on Edge/Breakdown/Corrosion FatigueGB/T 1220；YY/T 0149
Inside TableBasic ConfigurationSpecify usage conditions, it's easier to specify than the grade.

Material Selection Tips

  • Most common grades in this industry are 304 (8), 316L (6), 316 (5) —— numbers in parentheses indicate the number of parts involved, useful for quoting and material ordering.
  • Consider hardness for wear parts (edges, liners, conveyors) beyond just corrosion resistance (hit 5/11).
  • Commonly corrosive sources are chloride ions and salts (pitting, crevice corrosion) (hit 4/11).
  • Thickness range: 0.025–500 mm: thin plates for forming parts (consider bend back and deep drawing cracking), thick plates for welded structures (consider heat input and sensitization).

Common Issues

Which stainless steel is most used in the general spare parts pool (cross-industry high-frequency finished products)?
Out of 11 components, 304 (8 hits), 316L (6 hits), and 316 (5 hits) appear most frequently. Specific to a part still depends on the medium and temperature; for example, stainless steel countertops that come into contact with salt water should switch from 304 to 316L.
Which parts are prone to issues?
Based on failure descriptions, typical is "flanges (butt weld/flat weld/non-standard)": leak at seal face + HAZ intergranular corrosion + Cl⁻ pitting; recommended grades 304/304L/316/316L/321/2205, sizes DN15–DN600; pressures PN10–PN100. For these conditions, it's recommended to specify medium concentration, temperature, and cleaning method in the design phase.
What thickness is generally needed?
The listed thickness range is 0.025–500 mm. Thin plates consider forming and surface properties, thick plates for welding strength; different manufacturers may choose differently based on your drawings or conditions, review accordingly.

Related Materials and Adjacent Industries

2205Material and Specifications304Material and Specifications304LMaterial and Specifications316LMaterial and Specifications321Material and SpecificationsBuildings and InfrastructureConstruction & InfrastructurePower and Heat Production and Supply (including FGD Desulfurization)Power & Energy (incl. FGD)Gas Production and Supply IndustryGas Supply
Applications11
Added to Inquiry List