S235JRH

S235JRH

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.

PRODUCT FEATURES

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

NPS

O. D.

Nominal Wall Thickness

DN

Inch

mm

SCH5S

SCH10S

SCH10

SCH20

SCH30

SCH40

SCH60

SCH80

SCH100

SCH120

SCH140

SCH160

STD

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 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 grade

Material number

Type of deoxidation1)

C

Si

Mn

P

S

N2)

S235JRH

1.0039

FF

≤ 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.

Maximum Carbon Equivalent Value (CEV) of S235JRH Based on Cast Analysis

Steel Grade

Maximum CEV for nominal

thicknesses ≤40 mm

%

Steel Name

Steel Number

S235JRH

1.0039

0,35

Mechanical Properties of S235JRH at Room Temperature

Steel Grade

Material number

Yield Strength ReH

N/mm² min.

for Nominal Wall Thickness in mm

Tensile strength Rm

N/mm²

for Nominal Wall Thickness in mm

Elongation A 4)

%

min.

for Nominal Wall Thickness in mm

 

Impact Energy KV5)

J

min.

 

at a Temperature °C of

 

 

£ 16

> 16

£ 40

< 3

≥ 3

≤40

≤40

-20

0

+20

S235JRH1)

1.0039

235

225

360 -510

360 – 510

242)

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

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 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 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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