The EN 10219 S235JRH pipe is made in accordance with all applicable ASTM, ASME, and international standards. These pipes have greater corrosion resistance and are suitable for use in a variety of temperatures.

Cold-Formed S235JRH Steel Welded Pipe has tensile strengths ranging from 316Mpa to 510Mpa and yield strength of at least 235Mpa. These pipes may be readily extended by 26%. The S235JRH Tube is widely utilized in civil engineering applications such as bridge construction, structural frames, factory structures, and mechanical engineering systems.

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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 S235JRH 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 S235JRH Pipe

DNO. D.W. T.
652 1/2″732.
903 1/2″

Weldability of EN 10219 S235JRH Pipe

This European standard specifies weldable steel. EN 1011-1 and EN 1011-2 provide the essential specifications for welding items covered by this European standard.

The greatest concern while welding these materials is the development of cold cracking in the welded zone as the thickness, strength level, and CEV of the product increase. Cold cracking occurs as a result of the following factors:

  • 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 S235JRH for product thicknesses ≤ 40 mm (Heat analysis in %)

Steel gradeMaterial numberType of deoxidation1)CSiMnPSN2)
S235JRH1.0039FF≤ 0,17≤ 1,40≤ 0,040≤ 0,040≤ 0,009
FF = Fully 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).
The maximum value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0,020 % 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 the Inspection Document.

Mechanical Properties of S235JRH at Room Temperature

Steel GradeMaterial numberYield Strength ReH
N/mm² min.
for Nominal Wall Thickness in mm
Tensile strength Rm
for Nominal Wall Thickness in mm
Elongation A 4)
for Nominal Wall Thickness in mm
Impact Energy KV5)
at a Temperature °C of
< 16> 16
≤ 40
< 3≥ 3
S235JRH1)1.0039235225360 -510360 – 510242)27
The impact test has to be proved only if option 1.3 is determined.
For wall thicknesses > 3 mm and section sizes D/T < 15 (circular) and (B+H)/2T x 12,5 (square or rectangular) the minimum elongation is reduced by 2. For wall thicknesses £ 3 mm the minimum value for elongation is 17 %.
For section sizes D/T < 15 (circular) and (B+H)/2T x 12,5 (square or rectangular) the minimum elongations are reduces by 2.
For wall thickness below 3 mm see DIN EN 10219-1, 9.2.2.
For impact tests with test pieces with reduced cross-section see DIN EN 10219-1, 6.7.2.

Manufacturing Tolerances of EN 10219 S235JRH 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
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 S235JRH Hollow Sections of Non-alloy Steels

EN 10219 S235JRH is tensile tested according to EN 10002-1 and Charpy impact tested according to EN 10045-1.

Inspection RequirementsInspection Frequency
Type of testNon-specific
Specific inspection
1Cast analysisOne result per delivery
One per cast
2Tensile testOne result per delivery
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
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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