S275J2H

astm a53

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

DN O. D. W. T.
Inch mm SCH5S SCH10S SCH10 SCH20 SCH30 SCH40 SCH60 SCH80 SCH100 SCH120 SCH140 SCH160 Sth XS XXS
50 2″ 60.3 1.65 2.77 3.91 5.54 8.74 3.91 5.54 11.07
65 2 1/2″ 73 2.11 3.05 5.16 7.01 9.53 5.16 7.01 14.02
80 3″ 88.9 2.11 3.05 5.49 7.62 11.13 5.49 7.52 15.24
90 3 1/2″ 101.6 2.11 3.05 5.74 8.08 5.74 8.08
100 4″ 114.3 2.11 3.05 6.02 8.58 11.13 13.49 6.02 8.56 17.12
125 5″ 141.3 2.77 3.4 6.55 9.53 12.7 15.88 6.55 9.53 18.05
150 6″ 168.3 2.77 3.4 7.11 10.97 14.27 18.26 7.11 10.97 21.95
200 8″ 219.1 2.77 3.76 6.35 7.04 8.18 10.31 12.7 15.09 18.26 20.62 23.01 8.18 12.7 22.23
250 10″ 273.1 3.4 4.19 6.35 7.8 9.27 12.7 15.09 18.26 21.44 25.4 28.58 9.27 12.7 25.4
300 12″ 323.9 3.96 4.57 6.35 8.38 10.31 14.27 17.48 21.44 25.4 28.58 33.32 9.53 12.7 25.4
350 14″ 355.5 3.96 4.78 6.35 7.92 9.53 11.13 15.09 19.05 23.83 27.79 31.75 35.71 9.53 12.7
400 16″ 406.4 4.19 4.78 6.35 7.92 9.53 12.7 16.66 21.44 26.19 30.96 36.53 40.49 9.53 12.7
450 18″ 457.2 4.19 4.78 6.35 7.92 11.13 14.27 19.05 23.83 39.36 34.93 39.67 45.24
500 20″ 508 4.78 5.54 6.35 9.53 12.7 15.09 20.62 26.19 32.54 38.1 44.45 50.01
550 22″ 558.8 4.78 5.54 6.35 9.53 12.7 22.23 28.58 34.93 41.28 47.63 53.98
600 24″ 609.6 5.54 6.35 6.35 9.53 14.27 17.48 24.61 30.96 38.89 46.02 52.37 59.54

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

Designation Type of deoxidation Sub Grop C % max. Nominal thickness(mm) Si % max. Mn % max. P % max. S % max. N % max.
According to EN10027-1 and lC 10 According to EN10027-1 ≤40 >40≤65
S275J2H 1.0138 FF QS 0.2 0.22 1.5 0.035 0.035
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 Grade Maximum CEV for nominal thicknesses ≤40 mm %
Steel Name Steel Number
S275J2H 1.0138 0,40

Mechanical Properties for S275J2H Non-alloy Structural Steel

Designation Minimum Yield Strength REh in N/mm2 Tensile Strength Rm in N/mm2 Minimum Percentage Elongation L0-5,65√S0 Impact Properties
According to EN10027-1 and lC 10 According to EN10027-1 Nominal thickness in mm Nominal thickness in mm Longitudinal Transverse Test Temperature Minimum Average Absorbed Energy(J)for Standard test pieces
≤16 >16≤40 >40≤65 <3 ≥3≤65 Nominal thickness in mm
≤40 >40≤65 ≤40 >40≤65
S275J2H 1.0138 275 265 255 430-580 410-560 22 21 20 19 -20 27

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
44 0.23
664 857 23.3 413
516 14 14.2 132 321

Manufacturing Tolerances of EN 10219 S275J2H Pipe

Characteristic Round Hollow Sections Square 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: ± 0.5mm T>5mm: ± 0.5mm
Out-of-Roundness 2%
Convexity Max .8% with min 0.5mm
Squareness of side 90° ± 1°
External Corner Profile T≤6mm: 1.6T to 2.4T
6<T≤10mm: 2.0T to 3.0T
T,10: 2.4T to 3.6T
Twist 2mm plus 0.5mm/m
Straightness 0.2% of total 0.15% 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 Requirements Inspection Frequency
Type of test Non-specific inspection Specific inspection
Mandatory tests 1 Cast analysis One result per delivery item One per cast
2 Tensile test One result per delivery item One per test unit ( b)
3 Impact test for Qualities J2 and K2 only Not applicable One set per test unit (b)
4 Surface condition and dimensions
5 NDT of the weld Not applicable All products, full length
Optional tests 6 Product analysis Not applicable One per test unit a
7 Cast analysis additional elements Not applicable See Option 1.2
8 Impact test for qualities JR and J0 Not applicable One set per test unit (b)
b – Longitudinal or transverse samples at the discretion of the manufacturer.
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