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