China SA234 Wp22 Alloy Seamless Pipe Fittings, Find details about China SA234 Wp22 Alloy Seamless Pipe Fittings, SA234 Wp22 Alloy Pipe Fittings from SA234 Wp22 Alloy Seamless Pipe Fittings
All fittings are made from Cr-Mo low alloy steel grade WP22 Class1(raw material mill - BaoSteel) with butt welding ends. Photos were taken before heat treatment and sandblasting & painting. These fittings are supplied to a power plant in Australia.
The Chemical Composition of WP22 pipe fittings, % | ||
---|---|---|
Element | Eccentric Reducer | Cap |
C | 0.12 | 0.10 |
Si | 0.26 | 0.28 |
Mn | 0.43 | 0.45 |
S | 0.008 | 0.006 |
P | 0.012 | 0.010 |
Cr | 2.15 | 2.18 |
Ni | 0.06 | 0.05 |
Cu | 0.05 | 0.05 |
Mo | 0.94 | 0.95 |
V | 0.02 | 0.02 |
AL | 0.006 | 0.008 |
Mechanical | Eccentric Reducer | Cap |
---|---|---|
Yield Strength(Mpa) | 345 | 350 |
Tensile Strength(Mpa) | 525 | 520 |
Elongation(%) | 32 | 33 |
Hardness(HB) | 157 | 150 |
Both the ASTM A234 WP22 reducers and caps were heat treated by the method of normalizing and tempering. The normalizing temperature was at 940°C while the tempering temperature was at 740°C. After heat treatment, ultrasonic tests were implemented to ensure the fittings are free of defection.