ASTM A139 Spiral Welded Steel Pipes

Specification

Product name	SSAW Steel Pipes
Place of origin	China
Standard	ASTM A139
Steel grades	Gr.A, Gr.B, Gr.C, Gr.D, Gr.E
Technique	Electric arc welded process
Outer diameter	219mm-3000mm (customizable)
Wall thickness	1mm-30mm
Length	3m-12m or customized length
Surface	Bare, anti-corrosion coating, FBE, 3PE or as per clients' requirements

 

Chemical compositions %

Grade	C,max	Mn,max	P,max	S,max
Gr.A	0.25	1.00	0.035	0.035
Gr.B	0.26	1.00
Gr.C	0.28	1.20
Gr.D	0.30	1.30
Gr.E	0.30	1.40

 

Mechanical properties

Grade	Tensile strength,min(Mpa)	Yield strength,min(Mpa)
Gr.A	330	205
Gr.B	415	240
Gr.C	415	290
Gr.D	415	315
Gr.E	455	360

 

Product show

We can provide large diameter SSAW steel pipes to clients, the maximum diameter of SSAW steel pipes can reach 3000mm, and the maximum length can reach 30m.

 

In order to extend their service life, anti-corrosion coating (such as 3PE, FBE coating) can be used on the internal and external surfaces of the steel pipes according to clients' requirements. The specific specification of anti-corrosion coating as follows.

Anti-corrosion coating	Size range of Steel Pipes		Coating thickness	Suitable working temperature
	OD/mm	Length/m
FBE internal coating	90-1220	5.5-14	60-100um and 200-500um	30 to 110℃
FBE external coating	60-1220	8-14	350-450um	90℃,max
3PE coating	60-1220	8-14	FBE layer: >100um AD layer: 170-250um PE layer: 2.5-3.7mm	-40 to 80℃

 

Applications

ASTM A139 SSAW steel pipes are widely used in petrochemical, water supply engineering, power industry, and other industries due to their high strength and excellent corrosion resistance.

1. In petroleum and natural gas industry, ASTM A139 SSAW steel pipes are used for long-distance transportation petroleum and natural gas.

2. Due to their large diameter and longer length, ASTM A139 SSAW steel pipes can be used in water supply systems and drainage systems.

 

FAQ

Q: What are the types of anti-corrosion coating?

A: We can provide FBE coating, 3PE coating, Black painting, Varnish painting, etc.

Q: What is your delivery time?

A: Generally, the delivery time is 20-30 days. The specific delivery time depends on product's quantity and type.

Q: Can you accept the third inspection?

A: Yes, we absolutely accept the third inspection.

Q: Can you provide some samples before order?

A: Yes, we can provide some samples fro you so that you can understand the quality of our products.

Q: Can you accept the small order?

A: Yes, small order and trial order can be accepted by us.

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