The introduction about the ASTM A105 steel grade material
According to ASTM standard,ASTM A105 is the material of carbon steel forgings for piping applications.It is the most widely used carbon steel material in ASME and ANSI standard for piping products.
ASTM A105 Raw Material For Steel Flanges
Chemical composition of ASTM A105 steel:
| Element | Composition,% |
| Carbon, max | 0.35 |
| Manganese | 0.60-1.05 |
| Phosphorus, max | 0.035 |
| Sulphur, max | 0.04 |
| Silicon | 0.10-0.35 |
| Copper, max | 0.4 |
| Nickel, max | 0.4 |
| Chromium, max | 0.3 |
| Molybdenum, max | 0.12 |
| Vanadium, max | 0.08 |
Mechanical properties of ASTM A105:
| Tensile Strength, min: | 70,000 psi (485 MPa) |
| Min. Yield Point: | 36,000 psi (250 MPa) |
| Reduction of area, min: | 30% min |
| Hardness, HB, max | 187 |
Heat Treatment of ASTM A105 steel:
When required,the ASTM A105 material can do the heat treatment accordingly,such as annealing,normalizing or normalizing and tempering or quenching and tempering.It will bring different mechanical properties to the steel.
In Hebei Haihao Group,ASTM A105 is used a lot to produce the carbon steel forged flanges,socket welding pipe fittings,threaded pipe fittings,outlets and forged pipe nozzles which are widely used in piping system.(ASTM A105 steel flange)