Product description 
  Forged Rings Features 
  Forming type :forging 
  Rating: ANSI150LBS~2500LBS, 
  DIN PN6~PN160 
  JIS 5K~30K, 
  HG PN0.25~PN25 
  PN2.0~PN42.0 
  Size :15mm—5000mm 
  Stainless steel forged rings Standard 
  ASME/ANSI:ASME B16.5, ASME B16.48, ASME B16.47 , API590 
  GB: GB/T9112~GB/9124-2000, GB/T2506-1989(2005) , GB/T2504-1989(2005) , GB/T10746-1989 GB/T4450-1989 
  Jis: JIS B2220-2004, JIS F7806-1996, JIS B2291-1994 
  Din: DIN 2573~2576, DIN2527, DIN2630~2637, DIN 2641~2642 
  CB: CB1001-81, CBM1013-81, CBM1018-81, CBT47-1999 
  JB:JB:/T74-1994, JB4700-4707-2000, JB/ZQ4485-4486-1997 
  HG:HG/T20592-2009, HG/T20615-2009 
  ISO:ISO 7005-5-1992 
  EN:BS EN 1092-1-2008 
  Forged Rings Materials 
  Stainless Steel : 
  OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, 00Cr19Ni10, 00Cr17Ni14Mo2, ASTM A182-F304, F304L, F304H, F316, F316L, F321, F321H, F347H 
  
 
  Super Stainless Steel: 
  ASTM A182-F904L, F317, F317L 
  
 
  Duplex Steel: 
  ASTM A182-F51, F53, F44 
  
 
  Special steel: 
  N06600, N08800, N08811 
  
 
  Alloy Steel: 
  16Mn, 12CrMo, 15Cr5Mo, Cr5Mo, 12Cr1MoV, ASTM A182-F11, F22, F91 F9 F5 
  
 
  Pipe Line : 
  ASTM A694-F42, F46, F48, F50, F52, F56, F60, F65, F70, F80 
  
 
  Carbon Steel: 
  ASTM A350-LF2, LF3 Q235A, 20#, ASTM A105.