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S275J2H

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S275J2H

EN 10219 S275J2H Steel tubes are hollow tubes for structural use.

Tensile strengths of Cold-Formed S275J2H Steel Welded Pipe range from 410Mpa to 580Mpa, with a minimum yield strength of 255Mpa. S275J2H tubes are widely used in civil engineering applications such as bridge building, structural frame construction, factory constructions, and mechanical engineering systems.

The symbol J and the letter 2 indicate that the quality has the required impact properties at -20°C, respectively.

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Since 1998, Tianjin United Steel Pipe Co., Ltd (TUSPIPE) has been committed to supplying high-quality line pipes.

With over 500,000 tons annual production capacity, the company serves various fields and industries, such as oil & gas exploitation and transmission, ship & auto-building, water & electricity, environmental protection, mechanical engineering, infrastructure construction and etc.

TUSPIPE places a premium on product quality and rigorous product quality control. In order to maintain good product quality,  the company has established a Test & Inspection Center since 2004. With a series of state-of-the-art tests and inspection equipment, the test & inspection center is able to perform the tensile tests, hydro tests, impact tests, DWTT, etc.

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Designation for EN 10219 S275J2H Steel Grade

  • The number of this European Standard (EN 10219 specification);
  • The capital letter S for structural steel;
  • The indication of the minimum specified yield strength for thickness ≤16mm is expressed in N/mm2;
  • The capital letters JR for the qualities with specified impact properties at room temperature;
  • The capital letter J and a number 0 or 2 for the qualities with specified impact properties at 0℃ and -20℃ respectively;
  • The capital letter H indicates hollow sections

Dimensions and Sizes of EN10219 S275J2H Pipe

DNO. D.W. T.
InchmmSCH5SSCH10SSCH10SCH20SCH30SCH40SCH60SCH80SCH100SCH120SCH140SCH160STDXSXXS
502″60.31.652.773.915.548.743.915.5411.07
652 1/2″732.113.055.167.019.535.167.0114.02
803″88.92.113.055.497.6211.135.497.5215.24
903 1/2″101.62.113.055.748.085.748.08
1004″114.32.113.056.028.5811.1313.496.028.5617.12
1255″141.32.773.46.559.5312.715.886.559.5318.05
1506″168.32.773.47.1110.9714.2718.267.1110.9721.95
2008″219.12.773.766.357.048.1810.3112.715.0918.2620.6223.018.1812.722.23
25010″273.13.44.196.357.89.2712.715.0918.2621.4425.428.589.2712.725.4
30012″323.93.964.576.358.3810.3114.2717.4821.4425.428.5833.329.5312.725.4
35014″355.53.964.786.357.929.5311.1315.0919.0523.8327.7931.7535.719.5312.7
40016″406.44.194.786.357.929.5312.716.6621.4426.1930.9636.5340.499.5312.7
45018″457.24.194.786.357.9211.1314.2719.0523.8339.3634.9339.6745.24
50020″5084.785.546.359.5312.715.0920.6226.1932.5438.144.4550.01
55022″558.84.785.546.359.5312.722.2328.5834.9341.2847.6353.98
60024″609.65.546.356.359.5314.2717.4824.6130.9638.8946.0252.3759.54

Weldability of EN 10219 S275J2H Pipe

This European standard only allows for the use of weldable steel. EN 1011-1 and EN 1011-2 specify the critical parameters for the welding of the products covered by this European standard.

While welding these materials, the primary worry is the development of cold cracking in the welded zone as the product’s thickness, strength level, and CEV grows. Cold cracking happens for a variety of reasons:

  • Enhanced diffusible hydrogen concentrations in the weld metal;
  • Brittle structure in the heat-affected zone;
  • High tensile stress concentrations in the welded joint

Chemical composition % of steel S275J2H (1.0138): EN 10219

DesignationType of deoxidationSub
Grop
C
%
max.
Nominal thickness(mm)
Si
%
max.
Mn
%
max.
P
%
max.
S
%
max.
N
%
max.
According to EN10027-1 and lC 10According to EN10027-1≤40>40≤65
S275J2H1.0138FFQS0.20.221.50.0350.035
1)The deoxidation methods are designated as follows:
FF-Full killed steel containing nitrogen binding elements in amounts sufficient to bind available nitrogen (e.g.min.0.020% total Al, or 0.015% soluble Al).
2)QS-quality steel.
3)It is permissible to exceed the specified values provided that for each increase of 0.001%N the P max content will be reduced by 0.005%, the N content of the ladle analysis, however, shall not be more than 0.012%
4)The max. value for nitrogen does not apply if the chemical composition shows a minimum total Al content of0.020% with a minimum AL/N ratio of 2:1, or if sufficient other N-binding elements are present. The N-binding elements shall be recorded in lnspection Document.

S275J2H Maximum Carbon Equivalent Value (CEV) Based on Cast Analysis

Steel GradeMaximum CEV for nominal
thicknesses ≤40 mm
%
Steel NameSteel Number
S275J2H1.01380,40

Mechanical Properties for S275J2H Non-alloy Structural Steel

DesignationMinimum Yield Strength REh in
N/mm2
Tensile Strength Rm in
N/mm2
Minimum Percentage Elongation L0-5,65√S0Impact Properties
According to EN10027-1 and lC 10According to EN10027-1Nominal thickness in mmNominal thickness in mmLongitudinalTransverseTest
Temperature
Minimum Average Absorbed Energy(J)for Standard test
pieces
≤16>16≤40>40≤65<3≥3≤65Nominal thickness in mm
≤40>40≤65≤40>40≤65
S275J2H1.0138275265255430-580410-56022212019-2027

Physical Properties of Steel Grade EN 10219 S275J2H

Temperature
(°C)
Modulus of
Elasticity
(GPa)
Mean Coefficient of Thermal
Expansion 10-6/(°C) between20(°C) and
Thermal
Conductivity
(W/m·℃)
Specific Thermal
Capacity
(J/kg·°C)
Specific
Electrical
Resistivity
(Ωmm²/m)
Density
(kg/dm³)
Poisson’s
Coefficient.
ν
440.23
66485723.3413
5161414.2132321

Manufacturing Tolerances of EN 10219 S275J2H Pipe

CharacteristicRound Hollow SectionsSquare and Rectangular Hollow Sections
Outside Dimension± 1% with min ± 0.5mm and max ± 10mm± 1% with min of ± 0.5mm
Thickness (T)T≤5mm: ±10%T≤5mm: ±10%
T>5mm: ± 0.5mmT>5mm: ± 0.5mm
Out-of-Roundness2%
ConvexityMax .8% with min 0.5mm
Squareness of side90° ± 1°
External Corner ProfileT≤6mm: 1.6T to 2.4T
6<T≤10mm: 2.0T to 3.0T
T,10: 2.4T to 3.6T
Twist2mm plus 0.5mm/m
Straightness0.2% of total0.15% of total
Mass±6% on individual length

Inspection and Testing of EN 10219 S275J2H Hollow Sections of Non-alloy Steels

EN 10219 S275J2H is tensile tested according to EN 10002-1 and Charpy impact tested according to EN 10045-1.

Inspection RequirementsInspection Frequency
Type of testNon-specific
inspection
Specific inspection
Mandatory
tests
1Cast analysisOne result per delivery
item
One per cast
2Tensile testOne result per delivery
item
One per test unit ( b)
3Impact test for
Qualities J2 and K2 only
Not applicableOne set per test unit (b)
4Surface condition
and dimensions
5NDT of the weldNot applicableAll products, full length
Optional
tests
6Product analysisNot applicableOne per test unit a
7Cast analysis
additional elements
Not applicableSee Option 1.2
8Impact test for
qualities JR and J0
Not applicableOne set per test unit (b)
b – Longitudinal or transverse samples at the discretion of the manufacturer.
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