SSAB Boron Tube 22

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General Product Description

SSAB Boron Tube 22 is a precision tube for hardening. It offers good workshop properties in delivery condition. The degree of hardness and toughness that can be achieved after heat-treatment will provide the final products with wear- and shock resistance properties that assure longer lifetime.

Dimension Range

SSAB Boron Tube 22 is available at circular, square and rectangular shapes.

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Shapes	Dimensions
Circular (mmin)	16 - 88.90.63 - 3.50
Square (mmin)	19x19 - 70x70
Rectangular (mmin)	25x15 - 100x40
Wall thickness (mmin)	0.9 - 3.00.04 - 0.12
Mill length (mm)	6000

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Select one parameter to compare

Dimensions

Shapes

Circular (mmin)

Dimensions

16 - 88.90.63 - 3.50

Shapes

Square (mmin)

Dimensions

19x19 - 70x70

Shapes

Rectangular (mmin)

Dimensions

25x15 - 100x40

Shapes

Wall thickness (mmin)

Dimensions

0.9 - 3.00.04 - 0.12

Shapes

Mill length (mm)

Dimensions

6000

Other shapes, sizes and lengths are available upon request.

Circular Dimensions

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Outer diameter (mmin)	0.9 mm (kg/m)	1.0 mm (kg/m)	1.25 mm (kg/m)	1.5 mm (kg/m)	2.0 mm (kg/m)	2.5 mm (kg/m)	3.0 mm (kg/m)
160.63	0.335	0.370	0.455	0.536	0.691	—	—
180.71	0.380	0.419	0.516	0.610	0.789	—	—
190.75	0.402	0.444	0.547	0.647	0.838	—	—
200.79	0.424	0.469	0.578	0.684	0.888	—	—
220.87	0.468	0.518	0.640	0.758	0.986	1.20	—
250.98	0.535	0.592	0.732	0.869	1.13	1.39	1.63
25.41.00	0.544	0.602	0.744	0.884	1.15	1.41	1.66
281.1	0.601	0.666	0.825	0.980	1.28	1.57	1.85
301.2	0.646	0.715	0.886	1.05	1.38	1.70	2.00
321.3	—	0.765	0.948	1.13	1.48	1.82	2.15
351.4	—	0.838	1.04	1.24	1.63	2.00	2.37
381.5	—	0.912	1.13	1.35	1.78	2.19	2.59
401.6	—	0.962	1.20	1.42	1.87	2.31	2.74
411.6	—	0.990	1.22	1.46	1.92	2.37	2.81
41.51.63	—	0.999	1.24	1.48	1.95	2.40	2.85
44.51.75	—	1.07	1.33	1.59	2.10	2.59	3.07
481.9	—	—	1.44	1.72	2.27	2.81	3.33
502.0	—	—	1.50	1.79	2.37	2.93	3.48
50.82.00	—	—	1.53	1.82	2.41	2.98	3.54
552.2	—	—	1.66	1.98	2.61	3.24	3.85
572.2	—	—	1.72	2.05	2.71	3.36	4.00
602.4	—	—	1.81	2.16	2.86	3.55	4.22
702.8	—	—	—	2.53	3.35	4.16	4.96
76.13.00	—	—	—	2.76	3.65	4.54	5.41
88.93.50	—	—	—	—	4.29	5.33	6.36

Compare parameters

Select one parameter to compare

0.9 mm (kg/m)

1.0 mm (kg/m)

1.25 mm (kg/m)

1.5 mm (kg/m)

2.0 mm (kg/m)

2.5 mm (kg/m)

3.0 mm (kg/m)

Outer diameter (mmin)

160.63

0.9 mm (kg/m)

0.335

1.0 mm (kg/m)

0.370

1.25 mm (kg/m)

0.455

1.5 mm (kg/m)

0.536

2.0 mm (kg/m)

0.691

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Outer diameter (mmin)

180.71

0.9 mm (kg/m)

0.380

1.0 mm (kg/m)

0.419

1.25 mm (kg/m)

0.516

1.5 mm (kg/m)

0.610

2.0 mm (kg/m)

0.789

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Outer diameter (mmin)

190.75

0.9 mm (kg/m)

0.402

1.0 mm (kg/m)

0.444

1.25 mm (kg/m)

0.547

1.5 mm (kg/m)

0.647

2.0 mm (kg/m)

0.838

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Outer diameter (mmin)

200.79

0.9 mm (kg/m)

0.424

1.0 mm (kg/m)

0.469

1.25 mm (kg/m)

0.578

1.5 mm (kg/m)

0.684

2.0 mm (kg/m)

0.888

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Outer diameter (mmin)

220.87

0.9 mm (kg/m)

0.468

1.0 mm (kg/m)

0.518

1.25 mm (kg/m)

0.640

1.5 mm (kg/m)

0.758

2.0 mm (kg/m)

0.986

2.5 mm (kg/m)

1.20

3.0 mm (kg/m)

—

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Outer diameter (mmin)

250.98

0.9 mm (kg/m)

0.535

1.0 mm (kg/m)

0.592

1.25 mm (kg/m)

0.732

1.5 mm (kg/m)

0.869

2.0 mm (kg/m)

1.13

2.5 mm (kg/m)

1.39

3.0 mm (kg/m)

1.63

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Outer diameter (mmin)

25.41.00

0.9 mm (kg/m)

0.544

1.0 mm (kg/m)

0.602

1.25 mm (kg/m)

0.744

1.5 mm (kg/m)

0.884

2.0 mm (kg/m)

1.15

2.5 mm (kg/m)

1.41

3.0 mm (kg/m)

1.66

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Outer diameter (mmin)

281.1

0.9 mm (kg/m)

0.601

1.0 mm (kg/m)

0.666

1.25 mm (kg/m)

0.825

1.5 mm (kg/m)

0.980

2.0 mm (kg/m)

1.28

2.5 mm (kg/m)

1.57

3.0 mm (kg/m)

1.85

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Outer diameter (mmin)

301.2

0.9 mm (kg/m)

0.646

1.0 mm (kg/m)

0.715

1.25 mm (kg/m)

0.886

1.5 mm (kg/m)

1.05

2.0 mm (kg/m)

1.38

2.5 mm (kg/m)

1.70

3.0 mm (kg/m)

2.00

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Outer diameter (mmin)

321.3

0.9 mm (kg/m)

—

1.0 mm (kg/m)

0.765

1.25 mm (kg/m)

0.948

1.5 mm (kg/m)

1.13

2.0 mm (kg/m)

1.48

2.5 mm (kg/m)

1.82

3.0 mm (kg/m)

2.15

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Outer diameter (mmin)

351.4

0.9 mm (kg/m)

—

1.0 mm (kg/m)

0.838

1.25 mm (kg/m)

1.04

1.5 mm (kg/m)

1.24

2.0 mm (kg/m)

1.63

2.5 mm (kg/m)

2.00

3.0 mm (kg/m)

2.37

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Outer diameter (mmin)

381.5

0.9 mm (kg/m)

—

1.0 mm (kg/m)

0.912

1.25 mm (kg/m)

1.13

1.5 mm (kg/m)

1.35

2.0 mm (kg/m)

1.78

2.5 mm (kg/m)

2.19

3.0 mm (kg/m)

2.59

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Outer diameter (mmin)

401.6

0.9 mm (kg/m)

—

1.0 mm (kg/m)

0.962

1.25 mm (kg/m)

1.20

1.5 mm (kg/m)

1.42

2.0 mm (kg/m)

1.87

2.5 mm (kg/m)

2.31

3.0 mm (kg/m)

2.74

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Outer diameter (mmin)

411.6

0.9 mm (kg/m)

—

1.0 mm (kg/m)

0.990

1.25 mm (kg/m)

1.22

1.5 mm (kg/m)

1.46

2.0 mm (kg/m)

1.92

2.5 mm (kg/m)

2.37

3.0 mm (kg/m)

2.81

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Outer diameter (mmin)

41.51.63

0.9 mm (kg/m)

—

1.0 mm (kg/m)

0.999

1.25 mm (kg/m)

1.24

1.5 mm (kg/m)

1.48

2.0 mm (kg/m)

1.95

2.5 mm (kg/m)

2.40

3.0 mm (kg/m)

2.85

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Outer diameter (mmin)

44.51.75

0.9 mm (kg/m)

—

1.0 mm (kg/m)

1.07

1.25 mm (kg/m)

1.33

1.5 mm (kg/m)

1.59

2.0 mm (kg/m)

2.10

2.5 mm (kg/m)

2.59

3.0 mm (kg/m)

3.07

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Outer diameter (mmin)

481.9

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.44

1.5 mm (kg/m)

1.72

2.0 mm (kg/m)

2.27

2.5 mm (kg/m)

2.81

3.0 mm (kg/m)

3.33

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Outer diameter (mmin)

502.0

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.50

1.5 mm (kg/m)

1.79

2.0 mm (kg/m)

2.37

2.5 mm (kg/m)

2.93

3.0 mm (kg/m)

3.48

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Outer diameter (mmin)

50.82.00

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.53

1.5 mm (kg/m)

1.82

2.0 mm (kg/m)

2.41

2.5 mm (kg/m)

2.98

3.0 mm (kg/m)

3.54

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Outer diameter (mmin)

552.2

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.66

1.5 mm (kg/m)

1.98

2.0 mm (kg/m)

2.61

2.5 mm (kg/m)

3.24

3.0 mm (kg/m)

3.85

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Outer diameter (mmin)

572.2

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.72

1.5 mm (kg/m)

2.05

2.0 mm (kg/m)

2.71

2.5 mm (kg/m)

3.36

3.0 mm (kg/m)

4.00

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Outer diameter (mmin)

602.4

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.81

1.5 mm (kg/m)

2.16

2.0 mm (kg/m)

2.86

2.5 mm (kg/m)

3.55

3.0 mm (kg/m)

4.22

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Outer diameter (mmin)

702.8

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.53

2.0 mm (kg/m)

3.35

2.5 mm (kg/m)

4.16

3.0 mm (kg/m)

4.96

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Outer diameter (mmin)

76.13.00

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.76

2.0 mm (kg/m)

3.65

2.5 mm (kg/m)

4.54

3.0 mm (kg/m)

5.41

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Outer diameter (mmin)

88.93.50

0.9 mm (kg/m)

—

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

—

2.0 mm (kg/m)

4.29

2.5 mm (kg/m)

5.33

3.0 mm (kg/m)

6.36

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Square Dimensions

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Height x Width (mm)	1.0 mm (kg/m)	1.25 mm (kg/m)	1.5 mm (kg/m)	2.0 mm (kg/m)	2.5 mm (kg/m)	3.0 mm (kg/m)
19 x 19	0.564	0.694	0.820	1.06	—	—
20 x 20	0.595	0.733	0.868	1.12	—	—
25 x 25	0.752	0.930	1.10	1.44	1.76	—
30 x 30	0.909	1.13	1.34	1.75	2.15	2.39
32 x 32	0.972	1.20	1.43	1.88	2.31	2.58
35 x 35	1.07	1.32	1.57	2.07	2.54	2.86
40 x 40	—	1.52	1.81	2.38	2.93	3.33
50 x 50	—	1.91	2.28	3.01	3.72	4.28
60 x 60	—	—	2.75	3.64	4.50	5.22
70 x 70	—	—	—	4.26	5.29	6.16

Compare parameters

Select one parameter to compare

1.0 mm (kg/m)

1.25 mm (kg/m)

1.5 mm (kg/m)

2.0 mm (kg/m)

2.5 mm (kg/m)

3.0 mm (kg/m)

Height x Width (mm)

19 x 19

1.0 mm (kg/m)

0.564

1.25 mm (kg/m)

0.694

1.5 mm (kg/m)

0.820

2.0 mm (kg/m)

1.06

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Height x Width (mm)

20 x 20

1.0 mm (kg/m)

0.595

1.25 mm (kg/m)

0.733

1.5 mm (kg/m)

0.868

2.0 mm (kg/m)

1.12

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Height x Width (mm)

25 x 25

1.0 mm (kg/m)

0.752

1.25 mm (kg/m)

0.930

1.5 mm (kg/m)

1.10

2.0 mm (kg/m)

1.44

2.5 mm (kg/m)

1.76

3.0 mm (kg/m)

—

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Height x Width (mm)

30 x 30

1.0 mm (kg/m)

0.909

1.25 mm (kg/m)

1.13

1.5 mm (kg/m)

1.34

2.0 mm (kg/m)

1.75

2.5 mm (kg/m)

2.15

3.0 mm (kg/m)

2.39

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Height x Width (mm)

32 x 32

1.0 mm (kg/m)

0.972

1.25 mm (kg/m)

1.20

1.5 mm (kg/m)

1.43

2.0 mm (kg/m)

1.88

2.5 mm (kg/m)

2.31

3.0 mm (kg/m)

2.58

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Height x Width (mm)

35 x 35

1.0 mm (kg/m)

1.07

1.25 mm (kg/m)

1.32

1.5 mm (kg/m)

1.57

2.0 mm (kg/m)

2.07

2.5 mm (kg/m)

2.54

3.0 mm (kg/m)

2.86

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Height x Width (mm)

40 x 40

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.52

1.5 mm (kg/m)

1.81

2.0 mm (kg/m)

2.38

2.5 mm (kg/m)

2.93

3.0 mm (kg/m)

3.33

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Height x Width (mm)

50 x 50

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.91

1.5 mm (kg/m)

2.28

2.0 mm (kg/m)

3.01

2.5 mm (kg/m)

3.72

3.0 mm (kg/m)

4.28

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Height x Width (mm)

60 x 60

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.75

2.0 mm (kg/m)

3.64

2.5 mm (kg/m)

4.50

3.0 mm (kg/m)

5.22

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Height x Width (mm)

70 x 70

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

—

2.0 mm (kg/m)

4.26

2.5 mm (kg/m)

5.29

3.0 mm (kg/m)

6.16

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Rectangular Dimensions

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Height x Width (mm)	1.0 mm (kg/m)	1.25 mm (kg/m)	1.5 mm (kg/m)	2.0 mm (kg/m)	2.5 mm (kg/m)	3.0 mm (kg/m)
25 x 15	0.595	0.733	0.868	1.12	—	—
30 x 10	0.595	0.733	0.868	1.12	—	—
30 x 15	0.673	0.831	0.985	1.28	—	—
30 x 20	0.752	0.930	1.10	1.44	1.76	—
30 x 25	0.830	1.03	1.22	1.59	1.95	—
35 x 15	0.752	0.930	1.10	1.44	1.76	—
35 x 20	0.830	1.03	1.22	1.59	1.95	2.16
40 x 20	0.909	1.13	1.34	1.75	2.15	2.39
40 x 25	0.987	1.22	1.46	1.91	2.34	2.63
40 x 30	1.07	1.32	1.57	2.07	2.54	2.86
50 x 20	1.07	1.32	1.57	2.07	2.54	2.86
50 x 25	—	1.42	1.69	2.22	2.74	3.10
50 x 30	—	1.52	1.81	2.38	2.93	3.33
50 x 40	—	1.71	2.05	2.69	3.33	3.80
60 x 20	—	1.52	1.81	2.38	2.93	3.33
60 x 30	—	1.71	2.05	2.69	3.33	3.80
60 x 40	—	1.91	2.28	3.01	3.72	4.28
70 x 25	—	—	2.16	2.85	3.52	4.04
70 x 30	—	—	2.28	3.01	3.72	4.28
70 x 50	—	—	2.75	3.64	4.50	5.22
80 x 20	—	—	2.28	3.01	3.72	4.28
80 x 30	—	—	2.52	3.32	4.11	4.74
80 x 40	—	—	2.75	3.64	4.50	5.22
80 x 60	—	—	—	4.26	5.29	6.16
100 x 40	—	—	—	4.26	5.29	6.16

Compare parameters

Select one parameter to compare

1.0 mm (kg/m)

1.25 mm (kg/m)

1.5 mm (kg/m)

2.0 mm (kg/m)

2.5 mm (kg/m)

3.0 mm (kg/m)

Height x Width (mm)

25 x 15

1.0 mm (kg/m)

0.595

1.25 mm (kg/m)

0.733

1.5 mm (kg/m)

0.868

2.0 mm (kg/m)

1.12

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Height x Width (mm)

30 x 10

1.0 mm (kg/m)

0.595

1.25 mm (kg/m)

0.733

1.5 mm (kg/m)

0.868

2.0 mm (kg/m)

1.12

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Height x Width (mm)

30 x 15

1.0 mm (kg/m)

0.673

1.25 mm (kg/m)

0.831

1.5 mm (kg/m)

0.985

2.0 mm (kg/m)

1.28

2.5 mm (kg/m)

—

3.0 mm (kg/m)

—

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Height x Width (mm)

30 x 20

1.0 mm (kg/m)

0.752

1.25 mm (kg/m)

0.930

1.5 mm (kg/m)

1.10

2.0 mm (kg/m)

1.44

2.5 mm (kg/m)

1.76

3.0 mm (kg/m)

—

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Height x Width (mm)

30 x 25

1.0 mm (kg/m)

0.830

1.25 mm (kg/m)

1.03

1.5 mm (kg/m)

1.22

2.0 mm (kg/m)

1.59

2.5 mm (kg/m)

1.95

3.0 mm (kg/m)

—

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Height x Width (mm)

35 x 15

1.0 mm (kg/m)

0.752

1.25 mm (kg/m)

0.930

1.5 mm (kg/m)

1.10

2.0 mm (kg/m)

1.44

2.5 mm (kg/m)

1.76

3.0 mm (kg/m)

—

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Height x Width (mm)

35 x 20

1.0 mm (kg/m)

0.830

1.25 mm (kg/m)

1.03

1.5 mm (kg/m)

1.22

2.0 mm (kg/m)

1.59

2.5 mm (kg/m)

1.95

3.0 mm (kg/m)

2.16

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Height x Width (mm)

40 x 20

1.0 mm (kg/m)

0.909

1.25 mm (kg/m)

1.13

1.5 mm (kg/m)

1.34

2.0 mm (kg/m)

1.75

2.5 mm (kg/m)

2.15

3.0 mm (kg/m)

2.39

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Height x Width (mm)

40 x 25

1.0 mm (kg/m)

0.987

1.25 mm (kg/m)

1.22

1.5 mm (kg/m)

1.46

2.0 mm (kg/m)

1.91

2.5 mm (kg/m)

2.34

3.0 mm (kg/m)

2.63

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Height x Width (mm)

40 x 30

1.0 mm (kg/m)

1.07

1.25 mm (kg/m)

1.32

1.5 mm (kg/m)

1.57

2.0 mm (kg/m)

2.07

2.5 mm (kg/m)

2.54

3.0 mm (kg/m)

2.86

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Height x Width (mm)

50 x 20

1.0 mm (kg/m)

1.07

1.25 mm (kg/m)

1.32

1.5 mm (kg/m)

1.57

2.0 mm (kg/m)

2.07

2.5 mm (kg/m)

2.54

3.0 mm (kg/m)

2.86

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Height x Width (mm)

50 x 25

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.42

1.5 mm (kg/m)

1.69

2.0 mm (kg/m)

2.22

2.5 mm (kg/m)

2.74

3.0 mm (kg/m)

3.10

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Height x Width (mm)

50 x 30

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.52

1.5 mm (kg/m)

1.81

2.0 mm (kg/m)

2.38

2.5 mm (kg/m)

2.93

3.0 mm (kg/m)

3.33

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Height x Width (mm)

50 x 40

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.71

1.5 mm (kg/m)

2.05

2.0 mm (kg/m)

2.69

2.5 mm (kg/m)

3.33

3.0 mm (kg/m)

3.80

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Height x Width (mm)

60 x 20

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.52

1.5 mm (kg/m)

1.81

2.0 mm (kg/m)

2.38

2.5 mm (kg/m)

2.93

3.0 mm (kg/m)

3.33

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Height x Width (mm)

60 x 30

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.71

1.5 mm (kg/m)

2.05

2.0 mm (kg/m)

2.69

2.5 mm (kg/m)

3.33

3.0 mm (kg/m)

3.80

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Height x Width (mm)

60 x 40

1.0 mm (kg/m)

—

1.25 mm (kg/m)

1.91

1.5 mm (kg/m)

2.28

2.0 mm (kg/m)

3.01

2.5 mm (kg/m)

3.72

3.0 mm (kg/m)

4.28

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Height x Width (mm)

70 x 25

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.16

2.0 mm (kg/m)

2.85

2.5 mm (kg/m)

3.52

3.0 mm (kg/m)

4.04

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Height x Width (mm)

70 x 30

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.28

2.0 mm (kg/m)

3.01

2.5 mm (kg/m)

3.72

3.0 mm (kg/m)

4.28

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Height x Width (mm)

70 x 50

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.75

2.0 mm (kg/m)

3.64

2.5 mm (kg/m)

4.50

3.0 mm (kg/m)

5.22

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Height x Width (mm)

80 x 20

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.28

2.0 mm (kg/m)

3.01

2.5 mm (kg/m)

3.72

3.0 mm (kg/m)

4.28

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Height x Width (mm)

80 x 30

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.52

2.0 mm (kg/m)

3.32

2.5 mm (kg/m)

4.11

3.0 mm (kg/m)

4.74

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Height x Width (mm)

80 x 40

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

2.75

2.0 mm (kg/m)

3.64

2.5 mm (kg/m)

4.50

3.0 mm (kg/m)

5.22

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Height x Width (mm)

80 x 60

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

—

2.0 mm (kg/m)

4.26

2.5 mm (kg/m)

5.29

3.0 mm (kg/m)

6.16

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Height x Width (mm)

100 x 40

1.0 mm (kg/m)

—

1.25 mm (kg/m)

—

1.5 mm (kg/m)

—

2.0 mm (kg/m)

4.26

2.5 mm (kg/m)

5.29

3.0 mm (kg/m)

6.16

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Mechanical Properties

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Condition	Yield strength R_p0.2 (min MPa)	Tensile strength R_m (min MPa)	Elongation A (min %)
As delivered	430	450	12

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Yield strength R_p0.2
(min MPa)

Tensile strength R_m
(min MPa)

Elongation A
(min %)

Condition

As delivered

Yield strength R_p0.2
(min MPa)

430

Tensile strength R_m
(min MPa)

450

Elongation A
(min %)

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Typical mechanical properties when quenched to water:

Rp_0.2 ~1100 Mpa; R_m ~1400 MPa; A~8%

Chemical Composition (ladle analysis)

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C (max %)	Si (max %)	Mn (max %)	S (max %)	Cr (max %)	B (max %)
0.25	0.40	1.40	0.010	0.40	0.0050

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Si
(max %)

Mn
(max %)

S
(max %)

Cr
(max %)

B
(max %)

C
(max %)

0.25

Si
(max %)

0.40

Mn
(max %)

1.40

S
(max %)

0.010

Cr
(max %)

0.40

B
(max %)

0.0050

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Tolerances

Tolerance Circular

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Characteristic	Circular precision tubes Tolerances meet or exceed the requirements of EN 10305-3
Outside diameter (D) ⁽¹ D < 20 mm 20 ≤ D < 32 mm 32 ≤ D < 44 mm 44 ≤ D < 55 mm 55 ≤ D < 70 mm 70 ≤ D < 80 mm 80 ≤ D < 100 mm	±0.12 mm ±0.15 mm ±0.20 mm ±0.25 mm ±0.30 mm ±0.35 mm ±0.40 mm
Out-of-roundness	The diameter tolerances include the out-of-roundness
Thickness (T)	T ≤ 1.5 mm: ±0.15 mm T>1.5 mm: ±10% of nominal thickness or ±0.35 mm whichever is the smaller
Straightness	Maximum 0.15% of measured length
Height of internal weld bead, g; Bead removed Bead not removed	g ≤ 0.3 mm g < 0.6 mm, when T ≤ 1.5 mm g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
Mill length	0/+50 mm, standard length 6000 mm
Exact length, single cutting	Agreed at the time of enquiry and order
Exact length, bundle cutting	Agreed at the time of enquiry and order

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Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

Characteristic

Outside diameter (D) ⁽¹
D < 20 mm
20 ≤ D < 32 mm
32 ≤ D < 44 mm
44 ≤ D < 55 mm
55 ≤ D < 70 mm
70 ≤ D < 80 mm
80 ≤ D < 100 mm

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

±0.12 mm
±0.15 mm
±0.20 mm
±0.25 mm
±0.30 mm
±0.35 mm
±0.40 mm

Characteristic

Out-of-roundness

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

The diameter tolerances include the out-of-roundness

Characteristic

Thickness (T)

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

T ≤ 1.5 mm: ±0.15 mm
T>1.5 mm: ±10% of nominal thickness or ±0.35 mm whichever is the smaller

Characteristic

Straightness

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

Maximum 0.15% of measured length

Characteristic

Height of internal weld bead, g;
Bead removed
Bead not removed

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

g ≤ 0.3 mm
g < 0.6 mm, when T ≤ 1.5 mm
g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm

Characteristic

Mill length

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

0/+50 mm, standard length 6000 mm

Characteristic

Exact length, single cutting

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

Agreed at the time of enquiry and order

Characteristic

Exact length, bundle cutting

Circular precision tubes
Tolerances meet or exceed the requirements of EN 10305-3

Agreed at the time of enquiry and order

¹⁾For a maximum distance of 100 mm, the ends may, due to the cutting method, have diameters outside the tolerances.

Tolerance Square

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Characteristic	Square precision tubes Tolerances meet or exceed the requirements of EN 10305-5
Outside dimensions (H) and (B), longer side¹⁾ H < 25 mm 25 ≤ H < 40 mm 40 ≤ H < 60 mm 60≤ H < 70 mm 70 ≤ H < 80 mm	±0.20 mm ±0.25 mm ±0.30 mm ±0.35 mm ±0.40 mm
Side concavity and convexity	Included in outside dimension tolerance
Thickness (T)	T≤ 1.5 mm: ±0.15 mm T>1.5 mm: ±10% of nominal thickness or ±0.35 mm whichever is the smaller
Straightness	Maximum 0.15% of measured tube length when shorter side length > 30 mm Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
Location of weld seam from the centre line	On narrow side for square and rectangular, optionally on wide side. On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
Height of internal weld bead, g; Bead removed Bead not removed	g ≤ 0.3 mm g < 0.6 mm, when T ≤ 1.5 mm g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
Squareness of side	90° ±1°
Corner profile	R < 1.5 x T, when T ≤ 2.5 mm R < 2.2 x T, when T > 2.5 mm
Twist (V)	V ≤ 3 mm for B and H ≤ 30 mm V ≤ B/10 or ≤ H/10 for B or H > 30 mm
Mill length	0/+50 mm, standard length 6000 mm
Exact length, single cutting	Agreed at the time of enquiry and order
Exact length, bundle cutting	Agreed at the time of enquiry and order

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