LSAW steel pipe

CS pipe,Welded steel pipe supplier,LSAW steel pipe
ASTM A672 LSAW steel pipe
ASTM A672 LSAW steel pipe

ASTM A672 LSAW steel pipe

Size : OD:406-1422.40mm WT:1.65-40mm, Length: 6mtr-20mtr

Standard & Grade :ASTM A672 Grade A45,A55,B60,B65 etc.

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

Coating: 3PE Coating;3PP Coating;FBE Coating;Epoxy Coating;Special Painting

The process of Lsaw steel pipe:

Plate  feeding → Edge Milling and Beveling → Board Probe → Edge Crimping →molding→Slag→Track Pre-Welding  → Tab Welding  → Inside Welding  → Slag  → Outside Welding  → Tab Removal  → Ultrasonic Inspection  → X-ray Inspection  →  Mechanical Expansion  → Flame Flat  → Hydro-static Testing  → Ultrasonic Inspection for pipe end and welding seam  → Weld and Pipe End X-ray Inspection  → Tube end weld grinding  → End Facing and Beveling  → Weighing and measuring  → Spray paint Marking  → Final Inspection  → Storage  → Storage and Shipment

A672 ELECTRIC FUSION WELDED (EFW) STEEL PIPE

American Piping Products stocks A672 EFW pipe in the grades and classes listed on the following tables:

Plate specification

Pipe grade

Type of steel

ASTM specification

No.

Grade

A 45

plain carbon

A285 / A285M

A

A50

plain carbon

A285 / A285M

B

A 55

plain carbon

A285 / A285M

C

B 60

plain carbon, killed

A515 / A515M

60

B 65

plain carbon, killed

A515 / A515M

65

B 70

plain carbon, killed

A515 / A515M

70

C 55

plain carbon, killed, fine grain

A516 / A516M

55

C 60

plain carbon, killed, fine grain

A516 / A516M

60

C 65

plain carbon, killed, fine grain

A516 / A516M

65

C 70

plain carbon, killed, fine grain

A516 / A516M

70

D 70

manganese-silicon, normalized

A537 / A537M

1

D 80

manganese-silicon, Q&TA

A537 / A537M

2

H 75

manganese-molybdenum, normalized

A302 / A302M

A

H 80

manganese-molybdenum, normalized

A302 / A302M

B, C or D

J 80

manganese-molybdenum, Q&T

A533 / A533M

Cl-1B

J 90

manganese-molybdenum, Q&T

A533 / A533M

Cl-2B

J 100

manganese-molybdenum, Q&T

A533 / A533M

Cl-3B

K 75

chromium-manganese-silicon

A202 / A202M

A

K 85

chromium-manganese-silicon

A202 / A202M

B

L 65

molybdenum

A204 / A204M

A

L 70

molybdenum

A204 / A204M

B

L 75

molybdenum

A204 / A204M

C

N 75

manganese-silicon

A299 / A299M


AQ&T = quenched and tempered
BAny grade may be furnished

Product description

Class

Heat treatment of pipe

Radiography

Pressure test

10

none

no

no

11

none

yes

no

12

none

yes

yes

13

none

no

yes

20

stress relieved

no

no

21

stress relieved

yes

no

22

stress relieved

yes

yes

23

stress relieved

no

yes

30

normalized

no

no

31

normalized

yes

no

32

normalized

yes

yes

33

normalized

no

yes

40

normalized and tempered

no

no

41

normalized and tempered

yes

no

42

normalized and tempered

yes

yes

43

normalized and tempered

none

yes

50

quenched and tempered

none

none

51

quenched and tempered

yes

none

52

quenched and tempered

yes

yes

53

quenched and tempered

none

yes

Scope

This specification covers steel pipe 16 inches in outside diameter or larger that is electric fusion welded (EFW) with filler metal added, fabricated from pressure vessel quality plate and suitable for high-pressure service at moderate temperatures. Several grades designate the type of plate used; classes designate the type of heat treatment performed during the manufacture of the pipe, whether the weld is radiographically examined, and if the pipe has been pressure tested.
Chemical composition
Product analysis of plate: The pipe manufacturer shall make an analysis of each mill heat of plate material. The product analysis shall meet the requirements of the plate specification to which the material was ordered.
Product analysis of weld: The pipe manufacturer shall make an analysis of the finished deposited weld material from each 500 feet or fraction thereof. Analysis shall conform to the welding procedure for deposited weld metal.
Heat treatment
Classes 10, 11, 12 and 13 are not heat treated. All other classes must be heat treated according to the parameters shown below:

Product description

Permissible Variations in Wall Thickness and Weight

Dictated by the requirements of the specification to which the manufacturer ordered the plate.
Permissible Variations in Outside Diameter
Based on circumferential measurement +/-0.5% of the specified outside diameter.
Reference documents
ASTM A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
ASTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel Plates
ASTM A530/A530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
ASTM A577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel Plates
ASTM A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
ASTM E110 Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers
ASTM E165 Practice for Liquid Penetrant Examination for General Industry
ASTM E709 Guide for Magnetic Particle Testing
ASTM A202/A202M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Manganese-Silicon
ASTM A204/A204M Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum
ASTM A285/A285M Specification for Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength
ASTM A299/A299M Specification for Pressure Vessel Plates, Carbon Steel, Manganese-Silicon

Product specification

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