Material International Standards

  • DIN = The German Institute for Standardization.
  • AISI/AS = American Iron and Steel Institute/American Standard
  • BS = British Standard
  • AFNOR NF = French Standard
  • SS = Swedish Standard
  • SUS = Japanese Standard
Standard DIN AISI/AS BS AFNOR NF SS SUS
S10, W1*            
S20*            
W2* 1.4016          
S30, W3 1.4016 430 430 S 17 Z8 C17 2320 430
S40, W4 1.4301 304 304 S 15 Z6 CN 18-09 2332 304
S50, W5 1.4401 316 316 S 31 Z3 CND
17-11-1 		2347 316
S60 1.4436 316     2343  
Testing according to SS-ISO 9227 with neutral salt mist spray.
  • S10 (W1) = Min 72 hours to red rust.
  • S20          = Min. 200 hours to red rust.
  • S30 (W3) = All parts in chrome steel, minimum time to red rust is 500 hours
  • S40 (W4) = All parts in stainless steel, minimum time to red rust is 500 hours.
  • S50 (W5) = All parts in acid resistant steel, minimum time to red rust is 2.000 hours.*
  • S60          = All parts in acid resistant steel, minimum time to red rust is over over 2.000 hours.
Screw & housing in 1.4436/AISI 316/SS2343 and band in higher grade 1.4547/SS-EN 10 088-1.S10

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