Active Member
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[China]
Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.
Contact name:Vicky
Zhengzhou Huitong Pipeline Equipment Co.,Ltd. |
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DIN ASME ISO producing standard stainless steel fasteners bolt nut washer
1. Stainless Steel Grades Chart
| GRADE | TYPE | TRAITS | USES |
| 3CR12 | Ferritic | Useful corrosion resistance, particularly in wet abrasion environments. Readily welded and formed. | Tanks, flues, bins, chutes, rail wagons |
| 201 | Austenitic | Low nickel, high work hardening. | Cookware, hose clamps |
| 301 | Austenitic | Combination of strength and ductility to withstand severe forming methods. Corrosion resistance comparable to 302. | Rail cars, automotive components |
| 302 | Austenitic | Excellent corrosion resistance. High strength and hardness. | Food and drink, sanitary, cryogenic and pressure applications |
| 303 | Austenitic | Addition of sulfur or selenium gives it best machinability of all austenitic grades, but reduces corrosion resistance compared to 304. | Nuts and bolts, aircraft fittings and gears, bushings |
304 304L 304H | Austenitic | Slightly magnetic when cold worked. Excellent corrosion resistance but susceptible to pitting corrosion in warm chloride environments. Excellent toughness Accounts for 50% of all stainless steel produced. | Architecture, kitchens, food processing |
| 309S | Austenitic | Resistant to oxidation. | Heating, furnace parts |
316 316L 316H | Austenitic | Same mechanical and physical properties as 304 but more resistant to pitting corrosion, especially in warm chloride environments. Virtually non-magnetic. | Marine architectural components, food processing, hot water systems |
| 317L | Austenitic | Improved corrosion resistance over 316. 317L is a variation of 317 suitable for heavy-gauge welding. | Pulp and paper machinery, ink and dying processes, acetic acid distillation |
| 321 | Austenitic | Titanium-stabilized. | Aircraft, heat exchangers (up to intermediate temperatures) |
| 400 | Ferritic | Corrosion resistance comparable to 409, better surface finish | Caskets, applications requiring better finish than 409 |
| 409, Aluminized 409 | Ferritic | Resists atmospheric and automotive exhaust gas corrosion. Aluminized version adds salt and cosmetic corrosion resistance. | Auto exhaust systems, heat exchangers, furnace liners |
| 410, 410H | Martensitic | Resists dry atmospheres, freshwater, mild alkalis and acids, steam, and hot gases. Must harden for best heat and corrosion resistance. 410H has better hardenability. | Bolts, nuts, screws, pump parts and shafts, turbine parts, mine ladder rungs, cutlery, rulers, cold heading |
| 420, 420HC | Martensitic | Good resistance in hardened condition to atmosphere. Higher-carbon grade. HC offers better hardenability. | Cutlery, stainless steel hospital equipment, needle valves |
| 430, 430F | Ferritic | Good combination of corrosion resistance, formability, mechanical properties. 430F is suitable for high-speed machining, but corrosion resistance is lower. | Automotive trim, refrigerator doors, element supports, cold-headed fasteners |
| 431 | Martensitic | Excellent resistance to wide variety of corrosive media, approaching that of 304. High tensile, torque strength. | Pump and boat shafts, nuts, bolts, marine hardware |
| 434 | Ferritic | Molybdenum use improves pitting resistance over 430. | Automotive trim components |
| 435 Mod. | Ferritic | Improved formability and weldability. | Automotive trim |
| 436 | Ferritic | Controlled roping. | Automotive trim |
| 439 | Ferritic | Titanium-stabilized. 18% chrome alloy with low carbon content. Corrosion resistance to variety of oxidizing environments. Pitting corrosion resistance. | Nuclear, automotive, power generation, chemical processing, consumer appliances |
| 440 | Martensitic | High-carbon, moderate corrosion resistance, superior strength and hardness. | Knives, ball bearings, gauge blocks, dies |
| 444 | Ferritic | Resistant to oxidation, corrosion, and stress cracking. | Water heaters, engine components, solar panels |
| 904L | Austenitic | ‘Super austenitic’ grade with very high corrosion resistance, especially to strong acids and chlorides. | Sulphuric acid service |
| 2205 | Ferritic/ Austenitic | About 50% ferrite and 50% austenitic. High strength and hardness. Resistant to erosion, fatigue, stress corrosion cracking, and pitting and crevice corrosion. | Marine, chemical, and petrochemical industries |
| 41003 | Ferritic | Excellent weldability, toughness, and fabricating characteristics | Tubing for bus frames, hopper cars, chutes, storage tanks, shipping containers |
| UR52N | Ferritic/ Austenitic | ‘Super duplex’ grade with exceptional resistance to hot chlorides and sulfides. High in strength. | Marine, chemical, and petrochemical industries |
Regarding the requirement of the strength and circumstance, there are several types of material can be used for the Fastener Material Selection.
4. Common stainless steel producing standard:
