Standard Coiled Tubing Seamless Steel Pipe Line Pipe for Oil Field

Seamless steel pipe refers to steel pipe without seams or welded joints. Seamless steel pipe is made from solid round steel billets, which are heated and then extruded or stretched to form hollow steel pipes.

Product Name

Seamless steel pipe

Dimension

6 mm - 1080 mm,or according to customer needs

Thickness

1mm - 135 mm,or according to customer needs

Length

3 m - 12 m,or according to customer needs

Standard

ASTM ,GB ,DIN, etc.

Steel grade

A106/53/179/214/192/210 A/B/C
ST37.2/35.4/35.8/52/52.3/52.4/42/45
10# 20# 45#
P2, P12, P11, P22, P5, P9, P91 
T2, T11,T5,T9,T22, 4140, 12CrMo, 15CrMo, 12Cr2Mo, 1Cr5Mo, 2CrMo4, 1Cr9Mo, 10CrMo910, etc.

Trade terms

FOB/CIF/CFR,etc.

Payment terms

T/T, L/C,etc.

Delivery port

Tianjin China,or according to customer needs

Delivery time

10 or according to the real quantity of the tubes

Surface treatment

Black painting, Varnish painting ,3PE ,Hot galvanized, Bare tube, 
or other coating according to your requirements

Inspection

Ultrasonic examination, eddy inspection, hydrosttic testing etc.

Package

Bundles, lossen or according to your requirements

Seamless Steel Pipe End

Plain End

Wall Thickness less than 0.5 inch, including SCH STD & SCH XS

Plain End (Square Cut)

Wall Thickness over 0.5 inch, including SCH XXS

Beveled End

Wall Thickness less than 0.5 inch, including SCH STD & SCH XS

Couplings

Outside Diameter equal or less than 2''

Thread Protection

Outside Diameter over 4 inch

Seamless Steel Pipe Chemical Composition and Mechanical Properties

Standard

Grade

Chemical Composition (%)

Mechanical Properties

ASTM A53

C

Si

Mn

P

S

Tensile STrength(Mpa)

Yield STrength(Mpa)

A

≤0.25

-

≤0.95

≤0.05

≤0.06

≥330

≥205

B

≤0.30

-

≤1.2

≤0.05

≤0.06

≥415

≥240

ASTM A106

A

≤0.30

≥0.10

0.29-1.06

≤0.035

≤0.035

≥415

≥240

B

≤0.35

≥0.10

0.29-1.06

≤0.035

≤0.035

≥485

≥275

ASTM A179

A179

0.06-0.18

-

0.27-0.63

≤0.035

≤0.035

≥325

≥180

ASTM A192

A192

0.06-0.18

≤0.25

0.27-0.63

≤0.035

≤0.035

≥325

≥180

Carbon Steel Seamless Pipe Chemical Composition and Mechanical Properties

Standard

Grade

Chemical Composition

C

Si

Mn

P

S

Cr

Ni

Cu

GB/T8163

10

0.07-0.14

0.17-0.37

0.35-0.65

≤0.035

≤0.035

≤0.15

≤0.25

≤0.25

20

0.17-0.24

0.17-0.37

0.35-0.65

≤0.035

≤0.035

≤0.25

≤0.25

≤0.25

Q345

0.12-0.20

0.20-0.55

1.20-1.60

≤0.045

≤0.045

-

-

-

Carbon Steel Seamless Pipe Tolerance

Pipe types

Pipe Szie(mm)

Tolerances

Hot rolled

OD

All

±1% (min ±0.50mm)

WT

All

+15%, -12.5%

Cold drawn

OD

6~10

±0.20mm

10~30

±0.40mm

30~50

±0.45mm

>50

±1%

WT

≤1

±0.15mm

>1~3

+15% -10%

>3

+12.5% -10%