ASTM 16PN Stainless weld neck Flanges

Product Features:
1.High Class Materials
2.Uniform Wall Thickness and Perfectly Round
3.Accurate Dimension

Materials
Carbon steel: ASTM/ASME A234 WPB,WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 
Stainless steel:ASTM/ASME A403 WP 304-304L-304H-304LN-304N 
                          ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti 
                          ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel:ASTM/ASME A402 WPL 3-WPL 6
High-performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

standards 
ASME B16.49-2007 ASME B16.25-2007
SY/T5257-2004
DL/T515-2004 GD2000 GD87-1101