News - EN10219 Chemical composition, mechanical properties, tolerances, and testing standards for LSAW steel pipes

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EN10219 Chemical composition, mechanical properties, tolerances, and testing standards for LSAW steel pipes

publisherTianjin Yuantai Derun Steel Pipe Group

time2024/02/21

: N10219-2006 Non alloy steel and fine-grained structural steel cold formed welded hollow steel pipes (for LSAW steel pipes)
Main materials S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H,etc

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EN10219-2006 Non alloy steel and fine-grained structural steel cold formed welded hollow steel pipes (for LSAW longitudinal submerged arc welded steel pipes)

Main materials S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S275NLH, S355NH, S355NLH, S420MH, S420MLH, S460MH, S460MLH, S460NH, S460NLH

1.The Meaning Of Numbers And Letters In EN10219-2006 Standard

S: Structural steel

Number after S: Minimum yield strength (wall thickness ≤ 16mm)

JR: Impact test at room temperature ≥ 27J

J0: Impact test at 0 degrees Celsius ≥ 27J

J2: -20 degrees Celsius impact test ≥ 27J

K2: -20 degrees Celsius impact test ≥ 40J

N: Normalized or normalized rolling (fine grain steel, impact test must be conducted, minimum temperature -20 degrees Celsius ≥ 40J)

M: Thermomechanical controlled rolling (impact test must be conducted, with a minimum temperature of -20 degrees Celsius ≥ 40J)

L: -50 degrees Celsius impact test ≥ 27J

H: Hollow section

2. Chemical Composition (Thickness T ≤ 40mm) And Mechanical Properties

In the EN10219-2006 standard, there are the following steel pipe materials: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S275NLH, S355NH, S355NLH, S460NH, S460NLH. What are their chemical compositions? What are their mechanical properties? Now let the editor take you to take a look.

Chemical composition of S235JRH

Carbon ≤ 0.17%, silicon ≤ not required, manganese ≤ 1.40%, phosphorus ≤ 0.04%, sulfur ≤ 0.04%, nitrogen ≤ 0.009%

S235JRH mechanical properties

3mm<wall thickness ≤ 16mm: yield strength ≥ 235MPa, tensile strength ≥ 360-510MPa, elongation ≥ 24%

16mm<wall thickness ≤ 40mm: yield strength ≥ 225MPa, tensile strength ≥ 360-510MPa, elongation ≥ 24%

Chemical composition of S275J0H

Carbon ≤ 0.20%, silicon ≤ not required, manganese ≤ 1.50%, phosphorus ≤ 0.035%, sulfur ≤ 0.035%, nitrogen ≤ 0.009%

Mechanical properties of S275J0H

3mm<wall thickness ≤ 16mm: yield strength ≥ 275MPa, tensile strength ≥ 410-560MPa, elongation ≥ 20%

16mm<wall thickness ≤ 40mm: yield strength ≥ 265MPa, tensile strength ≥ 410-560MPa, elongation ≥ 20%

Chemical composition of S275J2H

Carbon ≤ 0.20%, silicon ≤ not required, manganese ≤ 1.50%, phosphorus ≤ 0.030%, sulfur ≤ 0.030%, nitrogen ≤ not required

S275J2H mechanical properties

3mm<wall thickness ≤ 16mm: yield strength ≥ 275MPa, tensile strength ≥ 410-560MPa, elongation ≥ 20%

16mm<wall thickness ≤ 40mm: yield strength ≥ 265MPa, tensile strength ≥ 410-560MPa, elongation ≥ 20%

Chemical composition of S355J0H

Carbon ≤ 0.22%, silicon ≤ 0.55%, manganese ≤ 1.60%, phosphorus ≤ 0.035%, sulfur ≤ 0.035%, nitrogen ≤ 0.009%

S355J0H mechanical properties

3mm<wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 470-630MPa, elongation ≥ 20%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 470-630MPa, elongation ≥ 20%

S355J2H Chemical Composition

Carbon ≤ 0.22%, silicon ≤ 0.55%, manganese ≤ 1.60%, phosphorus ≤ 0.030%, sulfur ≤ 0.030%, nitrogen ≤ not required

S355J2H mechanical properties

3mm<wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 470-630MPa, elongation ≥ 20%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 470-630MPa, elongation ≥ 20%

Chemical composition of S355K2H

Carbon ≤ 0.22%, silicon ≤ 0.55%, manganese ≤ 1.60%, phosphorus ≤ 0.030%, sulfur ≤ 0.030%, nitrogen ≤ not required

S355K2H mechanical properties

3mm<wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 470-630MPa, elongation ≥ 20%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 470-630MPa, elongation ≥ 20%

Chemical composition of S275NH

Carbon ≤ 0.20%, silicon ≤ 0.40%, manganese ≤ 0.5-1.40%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.05%,

Aluminum ≥ 0.020%, titanium ≤ 0.03%, chromium ≤ 0.30%, nickel ≤ 0.30%, molybdenum ≤ 0.10%, copper ≤ 0.35%, nitrogen ≤ 0.015%,

Mechanical properties of S275NH

Wall thickness ≤ 16mm: yield strength ≥ 275MPa, tensile strength ≥ 370-510MPa, elongation ≥ 24%

16mm<wall thickness ≤ 40mm: yield strength ≥ 265MPa, tensile strength ≥ 370-510MPa, elongation ≥ 24%

Chemical composition of S275NLH

Carbon ≤ 0.20%, silicon ≤ 0.40%, manganese ≤ 0.5-1.40%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.05%,

Aluminum ≥ 0.020%, titanium ≤ 0.03%, chromium ≤ 0.30%, nickel ≤ 0.3%, molybdenum ≤ 0.10%, copper ≤ 0.35%, nitrogen ≤ 0.015%,

S275NLH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 275MPa, tensile strength ≥ 370-510MPa, elongation ≥ 24%

16mm<wall thickness ≤ 40mm: yield strength ≥ 265MPa, tensile strength ≥ 370-510MPa, elongation ≥ 24%

S355NH chemical composition

Carbon ≤ 0.20%, silicon ≤ 0.50%, manganese ≤ 0.9-1.65%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.12%,

Aluminum ≥ 0.020%, titanium ≤ 0.03%, chromium ≤ 0.30%, nickel ≤ 0.5%, molybdenum ≤ 0.10%, copper ≤ 0.35%, nitrogen ≤ 0.015%,

S355NH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 470-630MPa, elongation ≥ 22%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 470-630MPa, elongation ≥ 22%

S355NLH chemical composition

Carbon ≤ 0.18%, silicon ≤ 0.50%, manganese ≤ 0.9-1.65%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.12%,

Aluminum ≥ 0.020%, titanium ≤ 0.03%, chromium ≤ 0.30%, nickel ≤ 0.5%, molybdenum ≤ 0.10%, copper ≤ 0.35%, nitrogen ≤ 0.015%,

S355NLH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 470-630MPa, elongation ≥ 22%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 470-630MPa, elongation ≥ 22%

S460NH chemical composition

Carbon ≤ 0.20%, silicon ≤ 0.60%, manganese ≤ 1.0-1.70%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.20%,

Aluminum ≥ 0.020%, titanium ≤ 0.03%, chromium ≤ 0.30%, nickel ≤ 0.8%, molybdenum ≤ 0.10%, copper ≤ 0.35%, nitrogen ≤ 0.025%,

Mechanical properties of S460NH

Wall thickness ≤ 16mm: yield strength ≥ 460MPa, tensile strength ≥ 550-720MPa, elongation ≥ 17%

16mm<wall thickness ≤ 40mm: yield strength ≥ 440MPa, tensile strength ≥ 550-720MPa, elongation ≥ 17%

S460NLH chemical composition

Carbon ≤ 0.20%, silicon ≤ 0.60%, manganese ≤ 1.0-1.70%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.20%,

Aluminum ≥ 0.020%, titanium ≤ 0.03%, chromium ≤ 0.30%, nickel ≤ 0.8%, molybdenum ≤ 0.10%, copper ≤ 0.35%, nitrogen ≤ 0.025%,

S460NLH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 460MPa, tensile strength ≥ 550-720MPa, elongation ≥ 17%

16mm<wall thickness ≤ 40mm: yield strength ≥ 440MPa, tensile strength ≥ 550-720MPa, elongation ≥ 17%

Chemical composition of S275MH

Carbon ≤ 0.13%, silicon ≤ 0.50%, manganese ≤ 1.50%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.08%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.30%, molybdenum ≤ 0.20%, nitrogen ≤ 0.02%,

S275MH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 275MPa, tensile strength ≥ 360-510MPa, elongation ≥ 24%

16mm<wall thickness ≤ 40mm: yield strength ≥ 265MPa, tensile strength ≥ 360-510MPa, elongation ≥ 24%

Chemical composition of S275MLH

Carbon ≤ 0.13%, silicon ≤ 0.50%, manganese ≤ 1.50%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.08%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.30%, molybdenum ≤ 0.20%, nitrogen ≤ 0.02%,

Mechanical properties of S275MLH

Wall thickness ≤ 16mm: yield strength ≥ 275MPa, tensile strength ≥ 360-510MPa, elongation ≥ 24%

16mm<wall thickness ≤ 40mm: yield strength ≥ 265MPa, tensile strength ≥ 360-510MPa, elongation ≥ 24%

S355MH chemical composition

Carbon ≤ 0.14%, silicon ≤ 0.50%, manganese ≤ 1.50%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.10%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.3%, molybdenum ≤ 0.20%, nitrogen ≤ 0.02%,

S355MH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 450-610MPa, elongation ≥ 22%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 450-610MPa, elongation ≥ 22%

S355MLH chemical composition

Carbon ≤ 0.14%, silicon ≤ 0.50%, manganese ≤ 1.50%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.10%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.3%, molybdenum ≤ 0.20%, nitrogen ≤ 0.02%,

S355MLH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 355MPa, tensile strength ≥ 450-610MPa, elongation ≥ 22%

16mm<wall thickness ≤ 40mm: yield strength ≥ 345MPa, tensile strength ≥ 450-610MPa, elongation ≥ 22%

S420MH chemical composition

Carbon ≤ 0.16%, silicon ≤ 0.50%, manganese ≤ 1.70%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.12%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.3%, molybdenum ≤ 0.20%, nitrogen ≤ 0.02%,

Mechanical properties of S420MH

Wall thickness ≤ 16mm: yield strength ≥ 420MPa, tensile strength ≥ 500-660MPa, elongation ≥ 19%

16mm<wall thickness ≤ 40mm: yield strength ≥ 400MPa, tensile strength ≥ 500-660MPa, elongation ≥ 19%

S420MLH chemical composition

Carbon ≤ 0.16%, silicon ≤ 0.50%, manganese ≤ 1.70%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.12%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.3%, molybdenum ≤ 0.20%, nitrogen ≤ 0.02%,

S420MLH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 420MPa, tensile strength ≥ 500-660MPa, elongation ≥ 19%

16mm<wall thickness ≤ 40mm: yield strength ≥ 400MPa, tensile strength ≥ 500-660MPa, elongation ≥ 19%

S460MH chemical composition

Carbon ≤ 0.16%, silicon ≤ 0.60%, manganese ≤ 1.70%, phosphorus ≤ 0.035%, sulfur ≤ 0.030%, niobium ≤ 0.05%, vanadium ≤ 0.12%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.3%, molybdenum ≤ 0.20%, nitrogen ≤ 0.025%,

S460MH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 460MPa, tensile strength ≥ 530-720MPa, elongation ≥ 17%

16mm<wall thickness ≤ 40mm: yield strength ≥ 440MPa, tensile strength ≥ 530-720MPa, elongation ≥ 17%

S460MLH chemical composition

Carbon ≤ 0.16%, silicon ≤ 0.60%, manganese ≤ 1.70%, phosphorus ≤ 0.030%, sulfur ≤ 0.025%, niobium ≤ 0.05%, vanadium ≤ 0.12%,

Aluminum ≥ 0.020%, titanium ≤ 0.05%, nickel ≤ 0.3%, molybdenum ≤ 0.20%, nitrogen ≤ 0.025%,

S460MLH mechanical properties

Wall thickness ≤ 16mm: yield strength ≥ 460MPa, tensile strength ≥ 530-720MPa, elongation ≥ 17%

16mm<wall thickness ≤ 40mm: yield strength ≥ 440MPa, tensile strength ≥ 530-720MPa, elongation ≥ 17%

3. EN10219-2006 Common Tolerance Ranges

Diameter and roundness deviation (for LSAW straight seam submerged arc welded steel pipes):

Outer diameter tolerance ≤ ± 1%, minimum ± 0.5mm, maximum ± 10mm

The outer diameter measurement method is the circumference method, where the outer diameter is measured as the ratio of circumference to pi

Ellipticity: 2% for outer diameter/thickness ≤ 100

Tolerance calculation method=(maximum outer diameter - minimum outer diameter)/standard outer diameter X100%

Wall thickness deviation (for LSAW straight seam submerged arc welded steel pipes):

Outer diameter ≥ 406mm, wall thickness tolerance ≤ ± 10%, maximum ± 2mm

Straightness deviation (for LSAW straight seam submerged arc welded steel pipes, L is the length unit of the steel pipe in mm):

Full length straightness deviation ≤ 0.002L

Quality deviation: ± 6% (per unit length)

Height tolerance of inner and outer weld seams of submerged arc tubes

Thickness (T) ≤ 14.2, maximum weld height 3.5mm

Thickness (T) ＞ 14.2, maximum weld height 4.8mm

Length tolerance:

Any length: 4000-16000mm, with a single floating range of 2000mm. The supplied products may have a minimum value of 10% lower than the minimum value specified in the order, but cannot be lower than 75% of this minimum value

Approximately length: tolerance range from 0 to+50mm for ≥ 4000mm

Length:

When the length is less than 6000mm, the tolerance range is 0 to 5mm

When 6000mm ≤ length ≤ 10000mm, the tolerance range is 0 to 15mm

When the length is>10000mm, the tolerance is 0 to 5mm+1mm/meter

4. Our Company's Non-Destructive Testing Test:

Radiographic and Ultrasonic Testing (RT&UT)

Radiography (RT): 100% full inspection of steel pipes

Ultrasonic (UT): 100% full inspection of steel pipes

The water pressure shall be based on the standard or mutually agreed upon by both parties