ERW Pipe and Tubing

Supplier: Java Steel Pipeline

ERW Pipe

Description
Java Steel Pipeline provide Electric Resistance Welded Pipe or ERW Pipe  suitable for your project needs. ERW Pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge as per IS1239 or IS3589. Usully for high diameter. Common sizes for ERW steel pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. surface finishes are available in bare and coated formats and processing can be handled on site to customer specification.

The Difference between ERW and Seamless Pipe
ERW pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length, hence ERW pipe has a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.

Standard

ASTM A 53 (A),
BS 1387:1985 Heavy Series (H),
BS EN 10255:2004 (E),
JIS G 3444 STK 290, JIS G 3444 STK 400,
JIS G 3452 SGP Black And Galvanized Pipe
JIS G 3454 STPG 370,
SNI-07-0068-1987 PKB 30,
SNI-07-0068-1987 PKB 41.

Chemical Composition
Carbon (C) : 0.25 % max
Phosphor (p) : 0.05 % max
Sulfur (s) : 0.045 % max

Mechanical Properties
Tensile Strength : 330 N/mm
Yield Strenth : 205 N/mm
Elongation : 22 % min

Tolerance
Thickness : ± 12.5 %
Length : ± 2 %
Outside Diameter
OD = 48.3 mm : ± 0.4 mm
OD = 60.3 mm : ± 1 %
Standar length of Pipe : 6000 mm

Application
Furniture pipe, gas pipe, industrial pipe,scaffolding steger, petroleum, power, chemical and medical equipment, foodstuff, papermaking ,aviation, smelting, boiler heat ,shipbuilding, metallurgy etc

SNI – 07 – 0039 – 1987 (Medium)
Galvanized Pipe
Chemical composition
Phosphor (p) : 0.05 % max
Sulfur (s) : 0.05 % max

Mechanical Properties
Tensile Strength : 33 Kgf/mm
Elongation: 20 % min

Tolerance
Thickness : + Unlimited – 10%
Length : ± 2 %
Weight with zinc : 300 gr/m
Standard length of pipe : 6000 mm
Test Pressure; 710 Psi, 50 Kgf/cm2

Availability

1/4 inch OD to 6 inch OD (Outside Diameter)

Pipa 36″ A252 or A120 Sch 20, Spiral @ 6mtr
Pipa 34″ A252 or A120 Sch 20, Spiral @ 6mtr
Pipa 32″ A252 or A120 Sch 20, Spiral @ 6mtr
Pipa 24″ A252 or A120 Sch 20, ERW or Spiral @ 6mtr
Pipa 18″ A252 or A120 Sch 20, ERW or Spiral @ 6mtr

ERW Tubing

ERW tubing or Electric Resistance Welded tubing is not as strong as DOM tubing or Drawn Over Mandrel tubing. Usually when tube is made, it starts off as a flat sheet and this is rolled up into a tube and welded. DOM tubing is usually made the same way but there is an extra process where this tube is drawn through a die along with a mandrel to control the outer and inner diameters of the tube. This extra process strengthens the steel since it is cold formed by up to 20%. Another type of common tubing is Chrome-Moly also known as Chromium / Molybdenum Steel. This type of steel also uses the same process but has these additional elements within the steel alloy which increase strength even more. Chrome-Moly is usually used in tubing for cars and other applications over 3500 lbs.

ERW API Casing

Standards: API 5CT
Grade:J55,K55, L80, N80,P110
Specification:219.08-508mm*7.72-16.66mm(8 5/8″-20″*0.304″-0.656″)
End type: P,PS,PSLB,PSB,PLB,
Uses: casing serves as wall of a well

ERW Structural Pipe
Standards: ASTM A53M, JIS G3466
Grade: GR.A,GR.B, STKR400,STKR490
Specification: 219.1-630mm*4-20mm(8 5/8″-24 4/5″*0.157″-0.787″)
Uses: structural pipe is suitable for mechanical and pressure applications and low pressure liquid delivery and other purposes

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