ASTM A333 Grade 11 Seamless or Welded Steel Pipe for Low Temperature

Categories	Boiler Tubes
Brand	fushun
Model	Grade 11
Heat Treatment Requirements	Normalizing or Quenched and Tempered
Surface treatment	Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Outside Diameter	40-400mm
FOB port	Shanghai
Terms of Payment	L/C, T/T
Update Time	Apr 30,2025

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Detail Information

Quality Standard:

ASTM A333 Standard Specification for Seamless and Welded Steel Pipe for Low Temperature Service

Chemical Copmosition(%):

Grade	C	Mn	Si	P	S	Cr	Ni	Mo	Co
Grade 11	0.10 max	0.60 max	0.35 max	0.025 max	0.025 max	0.50 max	35.0-37.0	0.50 max	0.50 max

Size Range:

1.Outer Dimensions: 19.05mm-457mm

2.Wall Thickness:2.0mm-60mm

3.Lengths: Lengths required shall be specified on order.If no definite lengths required, following practice applies:

Single Random — 17′ ~ 24′ lengths

Double Random — 36′ ~ 44′ lengths

Heat Treatment Requirements:

All seamless and welded pipe shall be treated to control their microstructure by the following methods:

1.Normalizing per ASTM A333 Standard Specification for Seamless and Welded Steel Pipe for Low Temperature Service section 4.2.1.1; section 4.2.1.2 or section 4.2.1.3

2.Quenched and Tempered per A 333/A 333M – 05 section 4.2.2.1

3.Double Normalized and Tempered per A 333/A 333M – 05 section 4.2.2.2

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.

1.For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot.

2.For small lots, at least one pipe shall be tested.

3.For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

4.Hydrostatic Test

5. Impact Test One notched bar impact test, consisting of breaking three specimens shall be made from each heat represtented in a heat-treatment load on specimens taken from the finished pipe.