Spiral Steel Pipe

API casing,Carbon seamless steel pipe,Coated pipe
ASTM A53 GR.B Spiral steel pipe
ASTM A53 GR.B Spiral steel pipe

ASTM A53 GR.B Spiral steel pipe

Pipe type:Spiral seam welded steel pipe, Double-sided submerged arc welding steel pipe(DSAW steel pipe), helical submerged arc welded steel pipe,SSAW Pipe, SSAW Steel Pipe, Spiral Steel Pipe, Welded S

Size : OD:219-3500mm WT:1.65-40mm, Length: 6mtr-20mtr

Standard & Grade :ASTM A53 Grades A,B,C

Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

The process of Ssaw steel pipe:

Steel coils→Ray material test → Delivery straightening → Plate cutting and welding  → circle shear edge milling  → Forming  → inside auto-welding  → Outside auto-welding  → Online ultrasonic inspection  → Fixed length cutting  → Visual inspection for outside seam  → Visusl inspection for inside seam  → X-ray inspection for welding seam  → Even end and end bevel  → Hydrostatic test  → Ultrasonic inspection → Final product inspection  → Marking  → Store up

A53 PIPE SPECIFICATIONS

A/SA53
NPS 1/8″ – 26″
Schedules 10 through 160, STD, XH and XXH
ASTM A53 pipe (also referred to as ASME SA53 pipe) is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas and air lines. It is suitable for welding and for forming operations involving coiling, bending, and flanging, subject to certain qualifications.
American Piping Products stocks a full range of A53 pipe (SA53 Pipe) in:
Grade B
NPS 1/8” to 26” diameter
Schedules 10 through 160, STD, XH and XXH
Scope
ASTM A53 pipe covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. Continuous-Welded pipe is not intended for flanging. Purpose for which pipe is intended should be stated on order.
Looking for specific post-production services? See our full list.
Materials and Manufacture
The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.

Chemical Requirements

Type S
(seamless)

Type E

Type F

(electric-
resistance welded)

(furnace-
welded pipe)


Grade A

Grade B

Grade A

Grade B

Grade A

Carbon max. %

0.25

0.30*

0.25

0.30*

0.3

Manganese %

0.95

1.2

0.95

1.2

1.2

Phosphorous, max. %

0.05

0.05

0.05

0.05

0.05

Sulfur, max. %

0.045

0.045

0.045

0.045

0.045

Copper, max.%

0.40

0.40

0.40

0.40

0.4

Nickel, max. %

0.40

0.40

0.40

0.40

0.4

Chromium, max. %

0.40

0.40

0.40

0.40

0.4

Molybdenum, max. %

0.15

0.15

0.15

0.15

0.15

Vanadium, max. %

0.08

0.08

0.08

0.08

0.08


Permissible Variations in Wall Thickness
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in Weights per Foot
Plus or minus 10%

Permissible Variations in Outside Diameter
Outside Diameter at any point shall not vary from standard specified more than:


For NPS 1 1/2 and Smaller Sizes

For NPS 2 and Larger Sizes

1/64″ over

1/64″ under

1% over

1%under

Tensile Requirements

Seamless and Electric-resistance-welded

Continuous-Welded


Grade A

Grade B


Tensile Strength, min., psi

48,000

60,000

45,000

Yield Strength, min., psi

30,000

35,000

25,000

Hydrostatic Testing
Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.

Mechanical Tests Specified
Tensile Test — Transverse required on ERW for NPS 8 and larger.


Degree of Bend

Diameter of Mandrel

For Normal A53 Uses

90

12 x nom dia. of pipe

For Close Coiling

180

8 x nom dia. of pipe


Flattening Test — NPS 2 and larger XM and lighter walls.


Lengths

Standard Weight


Single Random — 16′ – 22′. 5% may be jointers. If Plain Ends — 5% may be 12′ – 16′.


Double Random — Shortest Length 22′, minimum average for order 35′.

Extra Strong and Double Extra Strong


Single Random — 12′ -22′. 5% may be 6′ – 12′.


Double Random (XS and lighter) — Shortest Length 22′, minimum average for order 35′.


Lengths longer than single random with wall thicknesses heavier than XS subject to negotiation.


Required Markings on Each Length
(On Tags attached to each Bundle in case of Bundled Pipe)

Rolled, Stamped, or Stenciled (Mfrs. Option)

Name brand of manufacturer

Kind of pipe, that is, Continuous Welded, Electric-Resistance-Welded A, Electric-Resistance-Welded B, Seamless A, Seamless B, XS for extra strong, XXS for double extra strong.

ASTM 53

Length of pipe

General Information

Couplings — Applied handling tight. Couplings, 2″ and smaller straight tapped, other sizes taper tapped.

Thread Protection — Applied to pipe 4″ and larger.

End Finish (unless otherwise specified) —

STD or XS, or wall thicknesses less than 0.500 in. (excluding XXS): Plain and beveled

All XXS and wall thicknesses over 0.500 in.: Plain end square cut.

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DIMENSION TOLERANCES OF SSAW STEEL PIPE

Standard

Standard

SY/T5040-2000

Y/T5037-2000

SY/T9711.1-197

ASTM A252

AWWA C200-9

API 5L PSL1

Tube end OD deviation

± 0.5%D

± 0.5%D

-0.79mm~+2.38

<± 0.1%T

<± 0.1%T

± 1.6mm


Wall thickness


± 10.0%T

D<508mm, ±12.5%T


- 8%T~+19.5%T


<- 12.5%T


-8%T~+19.5%T

5.0mm

D>508mm, ±10.0%T

T≥15.0mm, ±1.5m

SPECIFICATIONS OF SSAW STEEL PIPE

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