large diameter spiral welded steel pipe

Product Name:

Welded Spiral steel pipe

Size:

OD

219-3220mm

Wall Thickness

4-22mm

SCH30,SCH40,STD,XS,SCH80,SCH160,XXS etc.

Length

1-12m

Steel material

Q195 → Grade B, SS330,SPHC, S185

Q215 → Grade C,CS Type B,SS330, SPHC

Q235 → Grade D,SS400,S235JR,S235JO,S235J2

Standard

JIS A5525, DIN 10208, ASTM A252, GB9711.1-1997

Usage

USed For Structure, Accessorize And Construction

Ends

Beveled

End protector

1) Plastic pipe cap

2)Iron protector

Surface Treatment

1) Bared

2) Black Painted (varnish coating)

3) With Oiled

4) 3 PE, FBE

Technique

Electronic Resistance Welded (ERW )

Electronic Fusion Welded (EFW)

Double Submerged Arc Welded (DSAW)

Type

WELDED

Welded Line Type

Spiral

Section Shape

Round

Inspection

With Hydraulic Testing, Eddy Current , Infrared Test

Package

1)  Bundle,

2)  In Bulk,

3)  Bags,

4)  Clients' Requirements

Delivery

1)    Container

2)    Bulk carrier

Steel grade

chemical composition

 Mechanical property

C

Mn

Si

S

P

Cr

Ni

Cu

V

Nb

Ti

 Yield point

Tensile strength

Elongation

Q195

0.06~0.12

0.25~0.50

≤0.30

≤0.050

≤0.045

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195

315~430

33

Q235

0.12~0.20

0.30~0.70

≤0.30

≤0.045

≤0.045

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235

375~500

26

Q345

≤0.20

1.00~1.60

≤0.55

≤0.40

≤0.040

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0.02~0.15

0.015~0.060

0.02~0.20

345

470~630

21