Grechn manufactures seamless Austenitic and duplex stainless steel pipes and tubes in accordance with the following specifications:
  • ASTM A 213  ASME SA213 
  • ASTM A 269 ASME SA269
  • ASTM A 312 ASME SA312
  • ASTM A 789
  • ASTM A 790
  • ASTM A 262
  • ASTM A 370
  • ASTM A 941
  • ASTM A 999/A 999M
  • ASTM A 1016/A 1016
  • ASTM E 112
  • DIN 17456
  • DIN 17458
  • DIN 2462/1
  • ENISO 1127
  • DIN 2391
  • EN 10216-5
  • JIS G 3459
  • JIS G 3463
  • ANSI B36.10
  • ANSI B36.19
  • NACE MR01-75
  • NACE MR01-03
  • ISO 15156
  • NACE MR0175/ISO15156-2009
The main standard grades in our production line is the following:


  • TP304-AISI304-UNS S30400 -1.4301
  • TP304H-AISI304H-UNS S30409
  • TP304L-AISI304L-UNS S30403 -1.4306
  • TP316,TP316L-AISI316,AISI316L-UNS S31600,UNS S31603 -1.4401/1.4404
  • TP316H-AISI316H-UNS S31609
  • TP316Ti-AISI316Ti-UNS S31635-1.4571-4571-316Ti
  • TP321-AISI A321-UNS S32100-1.4541
  • TP321H-AISI321H-UNS S32100-1.4878
  • TP347-AISI347-UNS S34700-1.4550
  • TP310-AISI310-UNS S31000-1.4335
  • UNS S31803-1.4462,UNS S2205
  • UNS S32750
  • TP309
  • UNS32205
  • UNS30815
  • NICKLE ALLOY 800/UNS8810/8811
  • UNS8904/904L
The pipes can be manufactured in fixed lengths and random lengths between 1 and 22 meters.The size range as followings:

  • Pipes with an outside diameter 1/8"NB (10,3 mm) to 16"NB (406,4 mm)
  • Pipes with a wall thickness sch5s to schxxs(maximum wall thickness of 26mm)
  • Tubes with an outside diameter0.035¡±to 0.284¡±
  • Tubes with a wall thickness BWG20 to BWG2.
Add£ºGaoqiao Industrial Zong, Tongxiang, Jiaxing City,Zhejiang Province, P.R.China
Tel£º+86-573-88960898 88929781 Fax£º+86-573-88929780 E-mail£ºsales@grechn.com
stainless steel pipe and tube, seamless pipe , heat exchanger tube, Normal Bore NB pipe