As per ASTM A 335 Gr P5 min tempering temperature is 675deg.C.
Vendor submitted Material Test Certificate with tempering carried out at 750 deg.C.
Fluid service - Hot slurry at 300 deg.C
Would like to know if the material being proposed by vendor is acceptable or not ?
Hi,
We are fabricating a heavy hydrocarbon drain piping which comprises of fittings viz. Lateral Tee fittings of ASTM A 234 Grade WP5 specification.
However, vendor has requested for change in fittings as Lateral Tee fittings are unavailable. He has proposed for Equal Tee fittings.
Based on...
Hi,
We have requested the vendor to provide 3 INCHES, SCHEDULE 80S ASTM A 312, TP 304H, SMLS, 90 DEG. 9D pipe bends.
But vendor has provided 3 INCHES, SCHEDULE 80S ASTM A 312, TP 304H, SMLS, 90 DEG.686 mm radius pipe bends.
Can you please explain difference between 9D (as per specification)...