ASME Standards
| B16.9 | Factory-Made Wrought Steel Buttwelding Fittings |
| B16.28 | Wrought Steel Buttwelding Short Radius Elbows and Returns |
| B16.25 | Buttwelding Ends |
| B36.10 | Welded and Seamless Wrought Steel Pipe |
| B36.19 | Stainless Steel Pipe |
ASTM Standards
| A234 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service |
| A403 | Wrought Austenitic Stainless Steel Piping Fittings |
| A420 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low Temperature Service |
| A815 | Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings |
MSS Standards
| SP-43 | Wrought Stainless Steel Butt-Welding Fittings |
| SP-75 | High Test Wrought Butt-Welding Fittings |
| SP-79 | Socket Welding Reducer Inserts |
| SP-87 | Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications |
JIS Standards
| B2220 | Steel Welding Pipe Flanges |
| B2311 | Steel Butt-Welding Pipe Fittings for Ordinary Use |
| B2312 | Steel Butt-Welding Pipe Fittings |
| B2313 | Steel Plate Butt-Welding Pipe Fittings |
| G3452 | Carbon Steel Pipes for Ordinary Piping |
| G3454 | Carbon Steel Pipes for Pressure Service |
| G3457 | Arc Welded Carbon Steel Pipes |
DIN Standards
| 2605-1 | Steel Butt-Welding Pipe Fittings; Elbows and Bends with Reduced Pressure Factor |
| 2609 | Steel Butt-Welding Pipe Fittings; Technical Delivery Conditions |
| 2615-1 | Steel Butt-Welding Pipe Fittings; Tees with Reduced Pressure Factor |
| 2615-2 | Steel Butt-Welding Pipe Fittings; Tees for Use at Full Service Pressure |
| 2616-1 | Steel Butt-Welding Pipe Fittings; Eccentric Reducers with Reduced Pressure Factor |
| 2616-2 | Steel Butt-Welding Pipe Fittings; Reducers for Use at Full Service Pressure |
| 2617 | Steel Butt-Welding Pipe Fittings; Caps |
| 1626 | Welded Circular Unalloyed Steel Tubes Subject to Special Requirements; Technical Delivery Conditions |
| 1629 | Seamless Circular Unalloyed Steel Tubes Subject to Special Requirements; Technical Delivery Conditions |
| 17175 | Seamless Tubes of Heat-Resistant Steels; Technical Conditions of Delivery |
| 50049 | Materials Testing Certificates |
EN (European) Standards
| 10204 | Inspection Documents for Metallic Products |
| 10253-1 | Butt-Welding Pipe Fittings; Wrought Carbon Steel for General Use and Without Specific Inspection Requirements |
NACE Standards
| MR0175 | Sulfide Stress Cracking Resistant Metallic Material for Oilfield Equipment |
ASME Standards
| B16.9 | Factory-Made Wrought Steel Buttwelding Fittings |
| B16.28 | Wrought Steel Buttwelding Short Radius Elbows and Returns |
| B16.25 | Buttwelding Ends |
| B36.10 | Welded and Seamless Wrought Steel Pipe |
| B36.19 | Stainless Steel Pipe |
ASTM Standards
| A234 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service |
| A403 | Wrought Austenitic Stainless Steel Piping Fittings |
| A420 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low Temperature Service |
| A815 | Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings |
MSS Standards
| SP-43 | Wrought Stainless Steel Butt-Welding Fittings |
| SP-75 | High Test Wrought Butt-Welding Fittings |
| SP-79 | Socket Welding Reducer Inserts |
| SP-87 | Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications |
JIS Standards
| B2220 | Steel Welding Pipe Flanges |
| B2311 | Steel Butt-Welding Pipe Fittings for Ordinary Use |
| B2312 | Steel Butt-Welding Pipe Fittings |
| B2313 | Steel Plate Butt-Welding Pipe Fittings |
| G3452 | Carbon Steel Pipes for Ordinary Piping |
| G3454 | Carbon Steel Pipes for Pressure Service |
| G3457 | Arc Welded Carbon Steel Pipes |
DIN Standards
| 2605-1 | Steel Butt-Welding Pipe Fittings; Elbows and Bends with Reduced Pressure Factor |
| 2609 | Steel Butt-Welding Pipe Fittings; Technical Delivery Conditions |
| 2615-1 | Steel Butt-Welding Pipe Fittings; Tees with Reduced Pressure Factor |
| 2615-2 | Steel Butt-Welding Pipe Fittings; Tees for Use at Full Service Pressure |
| 2616-1 | Steel Butt-Welding Pipe Fittings; Eccentric Reducers with Reduced Pressure Factor |
| 2616-2 | Steel Butt-Welding Pipe Fittings; Reducers for Use at Full Service Pressure |
| 2617 | Steel Butt-Welding Pipe Fittings; Caps |
| 1626 | Welded Circular Unalloyed Steel Tubes Subject to Special Requirements; Technical Delivery Conditions |
| 1629 | Seamless Circular Unalloyed Steel Tubes Subject to Special Requirements; Technical Delivery Conditions |
| 17175 | Seamless Tubes of Heat-Resistant Steels; Technical Conditions of Delivery |
| 50049 | Materials Testing Certificates |
EN (European) Standards
| 10204 | Inspection Documents for Metallic Products |
| 10253-1 | Butt-Welding Pipe Fittings; Wrought Carbon Steel for General Use and Without Specific Inspection Requirements |
NACE Standards
| MR0175 | Sulfide Stress Cracking Resistant Metallic Material for Oilfield Equipment |