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Seamless Pipe ASTM A312 Tp304

Seamless Steel Pipe(SMLS) is made from a solid round steel billet which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. The seamless pipe is then finished to dimensional and wall thickness specifications in sizes from 1/8'' to 36'' OD.
Product Details:

Product Name

300 eries seamless pipe 08x18h10t astm a312 tp321 tp304/304l/304h 08x18h10t astm a312 tp321 tp304/304l/304h all specifications.

Size

1/2"—48"

Thickness

SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,

SCH140,SCH160,XXS,DIN, JIS standard thickness

Standard

ASTM A53, A106, API 5L, ASME B36.10M-1996
DIN1626, DIN1629, DIN17175, DIN 2448
JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461

Material

Q235, 20#, Q345
A53B, A106B, API 5L B,X42,X46,X52,X60, X65
ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4

Surface

Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,etc.

Pipe end 

Threaded beveled ,plain ,groove 

Payment terms 

TT ,LC 

Certificate

ISO9001, SGS,BV, etc

MOQ 

2 TONS 

Capacity

5000 TONS /month


Seamless Steel Pipe(SMLS) is made from a solid round steel billet which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. The seamless pipe is then finished to dimensional and wall thickness specifications in sizes from 1/8'' to 36'' OD.

Models of steel pipes

Tensile strengthMPa

Yield strengthMPa

Elongation

20

390min

245min

20min

45

590min

335min

14min

16Mn(Q345B)

490min

325min

21min


Models of steel pipes

C

Si

Mn

P

S

Cu

Ni

Cr


20

0.17-0.24

0.17-0.37

0.35-0.65

0.035max

0.035max

0.25max

0.25max

0.25max

45

0.42-0.50

0.17-0.37

0.50-0.80

0.035max

0.035max

0.25max

0.25max

0.25max

16Mn(Q345B)

0.12-0.20

0.20-0.55

1.20-1.60

0.035max

0.035max

0.25max

0.25max

0.25max


Seamless steel pipe

Seamless steel pipe (SMLS) is formed by drawing a solid billet over a piercing rod to create the hollow shell, without welding or seam. It is suitable for bending and flanging. The most advantage is increasing the ability of withstanding higher pressure. So it is widely used for boiler and pressure vessel, automotive area, oil well, and equipment components.

Seamless steel pipe can be cut, threaded or grooved. And the coating method includes black / red lacquer, varnish painting, hot dip galvanization, etc.

image001_副本


We provide welded steel pipe as standard:

ASTM A106 Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A53 Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Seamless
DIN 1629 Seamless Circular Tubes of Non Alloys Steel with Special Quality Requirement
DIN 2391-1 Seamless Precision Steel Tubes
JIS G3454 Carbon Steel Pipe for Pressure Service


ASTM A106 Seamless steel pipe

image004

*Specification: ASTM A106

*Dimension: ASME B36.10

*Outer Diameter: 1/2” to 20”(DN15-DN500)

*Wall Thickness: SCH40, SCH80

*Pipe End: Beveled, Plain, Threaded

*Surface: Black painting, Hot dip galvanized as ASTM A123

1_副本


ASTM A53 Seamless steel pipe

image007

*Specification: ASTM A53

*Dimension: ASME B36.10

*Outer Diameter: 1/2” to 20”(DN15-DN500)

*Wall Thickness: SCH40, SCH80

*Pipe End: Beveled, Plain, Threaded

*Surface: Black painting, Hot dip galvanized as ASTM A123

2_副本


Production process

PQF Mill:

image009

PQF(Premium Quality Finishing Mill) continuous rolling is the most advanced technology for producing hot rolled seamless steel pipe of modern industry.

It creates high quality seamless steel pipe efficiently, even for high alloy pipe and light wall pipe.

Size Range: 2″(60.3mm) to 20″(508mm).

Delivery Condition: As roll/ Normalized.

3


Cold Drawn Mill:

image010

Cold drawn mill is used for producing small size pipe. There are several times of cold forming process, so yield strength and tensile strength values increase, while elongation and toughness values decrease. A heat treatment must to be applied for each cold forming operation.

Comparing hot rolled pipe, cold drawn pipe maintains precise dimension, smooth surface and shining appearance.

Size Range: 1/2″(21.3mm) to 1-1/2″(48.3mm).

Delivery Condition: Cold Drawn/ Hard, Cold Drawn / Soft, Cold Drawn and Stress Relief, Annealed, Normalized.

4


Cold Rolled Mill:

image011

As another type of cold forming process, cold rolled mill also works at room temperature to stretch large size pipe to required small size.

Comparing cold drawn mill ,it takes pilger mill with fewer cold forming processes and lower productivity, but come out the pie in much precise size and shinning apperance.

Size Range: 1/2″(21.3mm) to 1-1/2″(48.3mm).

Delivery Condition: Cold roll, Annealed, Normalized.


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