| ASTM A928 /ASME SA928 |
ASTM A928/A928M-04 Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal |
| Material Grade |
Class1 |
Class2 |
Class3 |
Class4 |
Class5 |
| Size |
1/2''~48'' |
| Thickness |
SCH5~SCHXXS |
| End |
Beveled End,Plain End |
| Length |
As per your requirement. |
| Packing |
Export Standard packing or as per your requirements. |
Class 1—Pipe shall be double welded by processes using fifiller metal in all passes and shall be radiographed completely.
Class 2—Pipe shall be double welded by processes using filler metal in all passes. No radiograph is required.
Class 3—Pipe shall be single welded by processes using filler metal in all passes and shall be radiographed completely.
Class 4—Same as Class 3, except that the weld pass exposed to the inside pipe surface is permitted to be made without the addition of filler metal
Class 5—Pipe shall be double welded by processes using filler metal in all passes and shall be spot radiographed.
Heat Treatment
UNS
Designation |
Temperature, °F [°C] |
Quench |
| S31803 |
1870–2010 [1020–1100] |
rapid cooling in air or water |
| S32205 |
1870–2010 [1020–1100] |
rapid cooling in air or water |
| S32750 |
1880–2060 [1025–1125] |
rapid cooling in air or water |
| S32760 |
2010–2085 [1100–1140] |
rapid cooling in air or water |
