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ASTM A333 Pipe

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A333 GR.3,GR.6,GR.8 Pipe

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ASTM A333 Seamless Pipe for Low-Temperature Service

1).Standard Executived: ASTM A333,ASTM A334

2).Materials: ASTM A333 Gr.1,Gr.3,Gr.6,Gr.7,Gr.8,Gr.9, Gr.10

3).Outside diameter:from 1/4" to 28"(13.7 mm to 711.2 mm)

4).Wall Thickness:2mm-100mm

Schedule: SCH40, STD, SCH80, XS, SCH160, XXS etc.

5).Length:4m-12.8m, customers' requirements

6).Ends:Plain ends or bevel ends

7).Coating for protection:can be required according to customers'requirements

8).Other Materials: ASTM A334 Gr.1,Gr.3,Gr.6,Gr.7,Gr.8,Gr.9,Gr.11

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.

A333 Steel Pipe Material & Manufacture:

ASTM A333 Pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.

ASTM A333 Pipe

Chemical Requirements

Data		Composition, %
Element	Grade 1	Grade 3	Grade 6
Carbon, max	0.30	0.19	0.30
Manganese	0.40 – 1.06	0.31 – 0.64	0.29 – 1.06
Phosphorous, max	0.025	0.025	0.025
Sulfur, max	0.025	0.025	0.025
Silicon		0.18 -0.37	0.10 min
Nickel		3.18 – 3.82

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese.
When Grade 6 is ordered under this specification, supplying an alloy grade that specifically requires the addition of any element other than those listed for the ordered grade is not permitted. However, the addition of elements required for the deoxidation of the steel is permitted.

TENSILE REQUIREMENTS

The material shall conform to the requirements as proscribed:

	A333 Gr.1 pipe		A333 Grade.3 pipe		A333 Gr.6 pipe
	psi	MPa	psi	MPa	psi	MPa
Tensile Strength, min	55,000	380	65,000	450	60,000	415
Yield Strength, min	30,000	205	35,000	240	35,000	240
	Longitudinal	Transverse	Longitudinal	Transverse	Longitudinal	Transverse
Elongation in 2 in. or 50 mm, (or 4D), min, %:
Basic minimum elongation for walls 5/16 in.[8 mm] and over in thickness, strip tests,and for all small sizes tested in full section	35	35	30	20	30	16.5
When the standard round 2-in. or 50-mm gagelength or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used	28	20	22	14	22	12
For strip tests, a deduction for each 1/32in. [0.8 mm]decrease in wall thickness below 5/16 in. [8 mm] from the basic minimum elongation of the following percentage	1.75	1.25	1.50	1.00	1.50	1.00
	Elongation in 2 in. or 50 mm, min, %: