March 22, 2018

S355J2H structure steel seamless pipe

 Standard: EN 10210-1

Material: S355J2H, 1.0547

EN 10210-1 S355J2H structure steel pipe is a non-alloy hot finished structural hollow sections.  Grade S355J2H pipes and tubes are low-cost low carbon steel pipes with max 0.22 % carbon content with combination of max 1.60 % manganese easy to form and shape. The composition difference between S355J0H and S355J2H pipes is that the Phosphorous and Sulphur content of S355J2H pipe are 0.030% maximum, which is lower than that of S355J0H pipe. These pipes are manufactured as per EN Specification and commercially referred as cs pipes or ms pipes. Low carbon steel pipes are not as hard as high carbon steel pipes though carburizing can increase its surface hardness.


Chemical composition of EN 10210 S355J2H Steel Pipes

Carbon

Silicon max.

Manganese  max.

Phosphorous max.

Sulphur max.

Nitrogen max.

0.22

0.55

1.60

0.030

0.030

-

Mechanical Properties of EN 10210 S355J2H Steel Pipes

Min. Yield Strength Reh(Mpa)

Tensile Strength Rm (MPa)

Elongation % min.

t≤ 16mm

>16 ≤ 40mm

>40 ≤ 63 mm

>63 ≤ 80 mm

>80 ≤ 100 mm

>100 ≤ 120 mm

t<3 mm

>80 ≤ 100 mm

>100 ≤ 120 mm

t≤ 40mm

355

345

335

325

315

295

510-680

470-630

450-600

22

 

EN 10210 S355J2H Steel Pipes Tests and Inspections

Visual inspection

Dimensional check

Chemical analysis

Mechanical tests(impact test, tensile test)

Non-destructive testing


Are Looking for trusted exporter for EN 10210-1 S355J2H structure steel pipe? BBN Steel is a professional supplier of steel pipes in China. Welcome to contact us if you are interested in S355J2H steel pipes price. 

March 20, 2018

What’s the Difference Between Seamless Tube, DOM and ERW Tube?

Seamless Mechanical Tubing

The seamless tube is manufactured using a process called “extrusion”. During this process a solid steel bar is pierced though the centre using a die, turning the solid round into a round tube.

Basically there are two types of seamless tube:

Cold Drawn Seamless (CDS) normally made from SAE 1018, having precise tolerances and good surface finish

Hot Finished Seamless (HFS) normally made from SAE 1026, having less critical tolerances and a scaly finish – Not as strong as CDS

 

(DOM) Drawn Over Mandrel

Technically, DOM is not a type of steel tube, but rather the process in which the tube is finished. It is considered a high quality tube, and is normally constructed from SAE 1020 or 1026 steel. The first stages of manufacturing are identical to ones used to make electric resistance welded tube, but in the finishing stages the entire flash weld is removed and the tube is cold drawn over a mandrel. The cold drawn process provides the tube with better dimensional tolerances, improved surface finish and the strongest weld strength achievable. DOM is often incorrectly referenced as “seamless tube” when it actually does have a seam (although it is almost invisible).

 

ERW (Electric Resistance Welded)

The nomenclature ERW refers to a specific type of welding process that involves both spot and seam welding. Seam welding is commonly used during the manufacturing of round, square and rectangular steel tubing. The steel strip is unwound from coils and side-trimmed to control width and condition the edges for welding. The strip then passes through a series of contoured rollers which cold-form the material into a circular (square or rectangular) shape. The edges are forced together under pressure as a butt joint and then welded by heating the material to temperatures above 2000° F. The flash weld that has formed is now removed from the outside diameter of the tube. Once the weld has been tested the tube then passes through a series of sizing rolls to attain its precise finished size, after which the tube is then straightened and cut to length.

The material used in the manufacturing process is typically SAE 1010. This product is typically available in Cold Rolled steel (CREW) for 0.060” wall and lighter and Hot Rolled steel  (HREW) for 0.083” wall and heavier. The product will come  in an “as-welded” condition, (often called – flash-in condition) referring to when the flash from the weld is left on the inside of the tubing, it is not normally removed or controlled during the ERW tube production process.

 

Benefits of Cold Drawn Seamless (CDS):

Good surface finish – Superior machinability – Increased dimensional tolerances – High strength to weight ratio

Benefits of Hot Finish Seamless (HFS):

Cost effective material – Good Machinability – Wide range of sizes

S355J0H structural hollow section seamless pipe

Standard: EN 10210-1

Material: S355J0H, 1.0547

EN 10210-1 S355J0H structure steel pipe is a non-alloy hot finished structural hollow sections.  Grade S355J0H pipes and tubes are low-cost low carbon steel pipes with max 0.22 % carbon content with combination of max 1.60 % manganese easy to form and shape. These pipes are manufactured as per EN Specification and commercially referred as cs pipes or ms pipes. Low carbon steel pipes are not as hard as high carbon steel pipes though carburizing can increase its surface hardness.



Chemical composition of EN 10210 S355J0H Seamless Pipes

Carbon

Silicon max.

Manganese  max.

Phosphorous max.

Sulphur max.

Nitrogen max.

0.22

0.55

1.60

0.035

0.035

0.009

Mechanical Properties of EN 10210 S355J0H Steel Pipes

Min. Yield Strength Reh(Mpa)

Tensile Strength Rm (MPa)

Elongation % min.

t≤ 16mm

>16 ≤ 40mm

>40 ≤ 63 mm

>63 ≤ 80 mm

>80 ≤ 100 mm

>100 ≤ 120 mm

t<3 mm

>80 ≤ 100 mm

>100 ≤ 120 mm

t≤ 40mm

355

345

335

325

315

295

510-680

470-630

450-600

22

 

EN 10210 S355J0H Steel Pipes Tests and Inspections

Visual inspection

Dimensional check

Chemical analysis

Mechanical tests(impact test, tensile test)

Non-destructive testing

 

What are the BBN Steel advantages?

1. BBN steel has more than 20 years experience in S355J0H steel manufacturing and sales.

2. Good raw materials and well-regulated quality management system.

3. Certificated by ISO, API, DNV, ABS etc.

4. Competitive price with reliable quality.

Are Looking for trusted exporter for EN 10210-1 S355J0H structure steel pipe? BBN Steel is a professional supplier of steel pipes in China. Welcome to contact us if you are interested in S355J0H steel pipes price. 

March 14, 2018

API 5L PSL1 X42 seamless pipe for oil transportation

API 5L PSL1 X42 seamless pipe is a hot selling steel pipe product. It is used for the transportation of gas, water and oil. Pipeline steel coated line pipes are resistant to crack propagation.

The company can supply seamless type and welded type of API 5L PSL1 X42 line pipe. There are many manufacturing process like seamless(SMLS), electric resistance welding (ERW), high frequency welding (HFW), low frequency welding (LFW), and submerged arc welding (SAW). Welcome to contact us if you’re interested in our API 5L PSL1 X42 line pipes.

 


API 5L PSL1 X42 line pipe size

Standard

Specification for Line Pipe(ANSI/API specification 5L - 44th Edition, October 1, 2007)

Line pipe sizes

Nominal Pipe Size 1/2" to 48 " O.D.

Wall thickness

SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XS, SCH XXS, All API 5L X42 Pipe Thickness available

Pipe ends

Plain, Bevel, Screwed, Threaded l245 pipe

Manufacturing types

Seamless / ERW / Welded / Fabricated / CDW

Application & uses

Conveying gas, water, oil, and other liquids

 

The technical data of API 5L PSL1 X42 line pipe

It is given based on API Spec 5L-2007 version. Below are the chemical composition and mechanical properties of seamless type API 5L PSL1 line pipe.

Chemical composition(a, %) of API 5L PSL1 X42 seamless pipe  

C max.

Mn max.

P max.

S max.

V max.

Nb max.

Ti max.

0.28

1.30

0.030

0.030

d

d

d

a, Cu≤0.50; Ni≤0.50; Cr≤0.50; and Mo≤0.15;

c, Unless otherwise agreed,Nb+V≤0.06;

d, Nb+V+Ti≤0.15;

Mechanical properties of of API 5L PSL1 X42 seamless pipe

Pipe grade

Yield Strength, Rt0.5 Min (MPa)

Tensile Strength, Rm Min (MPa)

L290 or X42

290

415

 

API 5L PSL1 X42 seamless pipe acceptable delivery condition

API 5L PSL1 line pipes can be delivered in as-rolled, normalizing rolled, thermomechanical rolled, thermomechanical formed, normalizing formed, normalized, normalized and tempered, or quenched and tempered.

 

Available pipe tests for API 5L PSL1 line pipe

Chemical composition analysis(product analysis)

Tensile tests

Hydro-static test

Bend test

Flattening test

CVN impact test for PSL2 line pipe

MT magnetic particle testing

NDT non-destructive testing