ASTM A333 Standard covers seamless and welded steel pipe for low
temperature service. The Grade 6 steel involved is similar to AISI
4032 low alloy steel.
ASTM A333 Grade 6 pipe shall be made by the seamless or welding
process with the addition of no filler metal in the welding
operation.Seamless and Welded Steel Pipe size for Low-Temperature
Service:
Outer Dimensions: 19.05mm – 114.3mm
Wall Thickness:2.0mm – 14 mm
Length: max 16000mm
Inspection and Test: Chemical Composition Inspection, Mechanical
Properties Test(Tensile Strength,Yield Strength, Elongation,
Flaring, Flattening, Bending, Hardness, Impact Test), Surface and
Dimension Test,No-destructive Test, Hydrostatic Test.
Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot
Blasting.
Both ends of each crate will indicate the order no., heat no.,
dimensions, weight and bundles or as requested.
Heat Treatment
Product is supplied in the normalized, 1500 f and air cooled,
condition. It may be quenched and tempered by heating to 1475 F,
quench in circulating water and then temper by re-heating to 1100 F
and rapid air cooling.
Forging
Product is supplied in pipe form and not normally forged from that
shape.
Hot Working
Hot working may be done qt 2000 F down to 1600 F if need be. Do not
hot work below 1550 F and immediately following hot working cool in
a controlled atmosphere furnace from a temperature above 1550 F.
Cold Working
Cold working may be done by conventional methods.
Annealing
Anneal, or normalize, at 1600 F and air cool.
