The pointer of S Jones only demonstrates the lack of consistency in the approach adopted by various ASTM
A colleague (material engineer for several years and has worked in Nuclear industry) of mine from Houstom office pointed out about the foot note A to table 2. If one reads foot note A (which...
For comodity like Valve bodies (take the case of 2" Check valve or ball valve), where the material (for the body adaptor or body) is hollow (center is bored out), use of rolled bar should be fine with the above logic. Assume the mechanical properties are verified towards the outside diameter...
If the Crane is made to CMAA and or to ANSI then welding process employed shall be compliant with AWS D 1.5,
If the Crane is pedestal type then the welding shall be as per AWS D 1.1
As per AWS D 1.1 (the mother of AWS D 1.5) and AWS D 1.5 there is no reason for someone to object (Unless of...
1) If there is a material certificate that states the material is ASTM B564 and if the material is made from rolled bar, heat treated and is witnessed for tensile and chemical, corrosion test G28 (0ne per heat) and is NDE examined (Ultrasonic) may the material be accepted when the specification...
Whereas ASTM A 182 allows a rolled bar be certified as A 182 compliant material, such explicit permission is not mentioned in B 564 material.
However in ASTM B564 supplementary clauses, there are discussions on rolled bar, the questions are,
A) does ASTM B 564 allow rolled bar be certified...
ASTM A 182, which is for forging, permits cylindrical rolled bar, that are 4" and lower in diameter, provided the bar is heat treated, to be certified as ASTM A 182.
A) How and where can we get the basis / rationale behind this permission?
B) Some people advocate that asking for forged...
