Ph > Hot Finished Seamless Mechanical Tube

EN 102971-1 E355 AR (Previously ST52 DIN 1629)

A good multi purpose seamless tube supplied in various specifications to cover mechanical, pressure and structural applications.

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Mechanical Properties

Mechanical properties of tubes in the as delivered condition at room temperature, for wall thicknesses not exceeding 65mm.

Steel Grade Upper yield stress R
For wall thicknesses in Mpa (min)
Tensile Strength
Rm (Mpa min)
Elongation
% (min)
Steel Name Steel Number Up to 16 Over 16/up to 40 Over 40/up to 65 Longitudinal Transverse
E355 1.058 355 345 335 490 20 18
Tolerances
Outside Diameter
D (mm)
D ≤ 219.1 +/- 1% or 0.5mm
Whichever is the greater
D > 219.1 +/- 1%
Wall Thickness Wt (mm) Wt/D ratio
≤ 0.025 > 0.025
≤ 0.050
> 0.050
D ≤ 219.1 +/- 12.5% or 0.4mm
Whichever is the greater
D > 219.1 +/- 20% +/- 15% +/- 12.5%
Specifications

EN 10297-1

Dimensions
Outside Dia. (mm) Wall Thickness (mm)
50.8 4.0
50.8 6.3
50.8 8.0
50.8 9.5
50.8 12.5
57.1 4.0
57.1 6.3
57.1 9.5
57.1 12.5
60.3 4.5
60.3 5.0
60.3 6.3
60.3 8.0
60.3 9.5
60.3 12.5
63.5 6.3
63.5 8.0
63.5 9.5
63.5 12.5
63.5 16.0
69.9 6.3
69.9 9.5
69.9 12.5
69.9 16.0
76.1 4.5
76.1 5.6
76.1 6.3
76.1 8.0
76.1 9.5
76.1 12.5
76.1 16.0
76.1 19.0
82.5 6.3
82.5 9.5
82.5 15.5
82.5 16.0
82.5 19.0
88.9 4.0
88.9 4.5
88.9 5.0
88.9 8.6
88.9 6.3
88.9 8.0
88.9 9.5
88.9 12.5
88.9 16.0
88.9 19.0
95.2 6.3
95.2 9.5
95.2 12.5
95.2 16.0
95.2 19.0
101.6 4.0
101.6 5.0
101.6 6.3
101.6 8.0
101.6 9.5
101.6 12.5
101.6 16.0
101.6 19.0
101.6 25.0
108.0 6.3
108.0 9.5
108.0 12.5
108.0 16.0
180.0 19.0
114.3 4.5
114.3 5.6
114.3 6.3
114.3 8.0
114.3 9.5
114.3 12.5
114.3 16.0
114.3 19.0
114.3 25.4
120.6 8.0
120.6 9.5
120.6 12.5
120.6 19.0
120.6 25.4
120.6 32.0
127.0 5.0
127.0 6.3
127.0 9.5
127.0 12.5
127.0 16.0
127.0 19.0
127.0 25.0
133.0 6.3
133.0 9.5
133.0 12.5
133.0 19.0
133.0 25.0
139.7 5.6
139.7 6.3
139.7 8.0
139.7 9.5
139.7 12.5
139.7 19.0
139.7 25.0
139.7 30.0
139.7 35.0
139.7 40.0
146.0 9.5
146.0 12.5
152.4 6.3
152.4 9.5
152.4 11.1
152.4 12.5
152.4 16.0
152.4 19.0
152.4 25.0
152.4 31.8
152.4 35.0
152.4 40.0
152.4 45.0
159.0 9.5
159.0 12.5
159.0 19.0
159.0 25.0
159.0 30.0
159.0 35.0
159.0 40.0
159.0 50.0
165.1 6.3
165.1 31.8
165.1 38.1
168.3 4.5
168.3 5.0
168.3 5.6
168.3 6.3
168.3 8.0
168.3 9.5
168.3 12.5
168.3 16.0
168.3 25.0
168.3 30.0
168.3 35.0
168.3 40.0
168.3 50.0
177.8 6.3
177.8 9.5
177.8 12.5
177.8 19.0
177.8 25.0
177.8 34.9
177.8 40.0
177.8 50.0
193.7 5.6
193.7 6.3
193.7 8.0
193.7 9.5
193.7 12.5
193.7 16.0
193.7 19.0
193.7 25.0
193.7 30.0
193.7 35.0
193.7 40.0
193.7 50.0
203.2 6.3
203.2 9.5
203.2 12.5
203.2 19.0
203.2 25.0
203.2 38.1
203.2 50.8
219.1 5.0
219.1 6.3
219.1 7.0
219.1 9.5
219.1 12.5
219.1 19.0
219.1 25.0
219.1 35.0
219.1 40.0
219.1 45.0
219.1 50.0
219.1 60.0
228.6 6.3
228.6 9.5
228.6 12.5
228.6 19.0
228.6 25.0
228.6 34.9
228.6 44.4
228.6 50.0
228.6 60.0
241.0 50.0
241.0 60.0
241.0 70.0
241.0 80.0
244.5 5.9
244.5 7.1
244.5 9.5
244.5 12.5
244.5 16.0
244.5 19.0
244.5 25.0
244.5 33.4
244.5 35.0
244.5 38.0
244.5 40.0
244.5 50.0
244.5 75.0
254.0 6.3
254.0 9.5
254.0 12.5
254.0 19.0
254.0 25.0
254.0 38.1
254.0 50.8
254.0 55.0
254.0 60.0
260.0 60.0
260.0 70.0
260.0 80.0
260.0 90.0
273.0 6.3
273.0 7.1
273.0 9.5
273.0 12.7
273.0 16.0
273.0 19.0
273.0 25.0
273.0 34.9
273.0 41.2
273.0 50.0
273.0 60.0
273.0 85.0
279.4 20.0
279.4 25.0
279.4 28.6
279.4 35.0
279.4 38.1
279.4 50.8
279.4 57.2
292.0 19.0
292.0 25.0
292.0 38.1
292.0 46.0
292.0 50.8
292.0 57.0
298.5 9.5
298.5 12.5
298.5 14.2
298.5 16.0
298.5 20.0
298.5 25.0
298.5 30.0
298.5 35.0
298.5 40.0
298.5 45.0
298.5 50.0
298.5 55.0
298.5 75.0
298.5 90.0
304.8 7.1
304.8 9.5
304.8 12.5
304.8 19.0
304.8 25.0
304.8 38.1
304.8 50.8
304.8 55.0
304.8 63.5
304.8 80.0
311.0 12.5
311.0 25.0
311.0 38.1
311.0 50.8
311.0 57.2
323.9 6.3
323.9 7.1
323.9 9.5
323.9 12.7
323.9 14.2
323.9 19.0
323.9 25.0
323.9 28.6
323.9 31.8
323.9 35.0
323.9 41.2
323.9 47.6
323.9 50.0
323.9 55.5
323.9 63.5
323.9 75.0
323.9 90.0
330.2 25.4
330.2 50.8
330.2 76.2
342.9 20.0
342.9 25.4
342.9 30.0
342.9 38.1
342.9 45.0
342.9 50.0
342.9 63.5
342.9 90.0
355.6 9.0
355.6 12.7
355.6 16.0
355.6 19.1
355.6 25.0
355.6 28.6
355.6 31.8
355.6 44.4
355.6 50.0
355.6 63.5
355.6 70.0
355.6 76.2
355.6 80.0
355.6 100.0
368.3 10.0
368.3 16.0
368.3 17.5
368.3 20.0
368.3 25.0
368.3 30.0
368.3 35.0
368.3 40.0
368.3 45.0
368.3 50.0
368.3 60.0
368.3 65.0
368.3 80.0
381.0 12.5
381.0 20.0
381.0 25.0
381.0 38.1
381.0 50.0
381.0 63.5
381.0 76.2
394.0 28.0
394.0 30.0
394.0 35.0
394.0 40.0
394.0 45.0
394.0 50.0
394.0 100.0
406.4 9.5
406.4 12.7
406.4 19.1
406.4 25.0
406.4 28.0
406.4 30.0
406.4 36.0
406.4 40.0
406.4 50.0
406.4 55.0
406.4 60.0
406.4 70.0
406.4 76.2
406.4 80.0
406.4 88.9
406.4 90.0
406.4 100.0
419.1 20.0
419.1 25.0
419.1 30.0
419.1 35.0
419.1 40.0
419.1 45.0
419.1 50.0
419.1 55.0
419.1 60.0
419.1 70.0
419.1 90.0
419.1 100.0
431.8 12.7
431.8 25.0
431.8 38.1
431.8 44.4
431.8 50.8
431.8 63.5
431.8 76.2
431.8 20.0
431.8 25.0
431.8 30.0
431.8 35.0
431.8 40.0
431.8 55.0
431.8 60.0
431.8 65.0
431.8 70.0
457.2 9.5
457.2 12.7
457.2 19.1
457.2 25.0
457.2 35.0
457.2 40.0
457.2 50.0
457.2 60.0
457.2 76.1
457.2 85.0
457.2 90.0
470.0 25.0
470.0 30.0
470.0 35.0
470.0 45.0
470.0 50.0
470.0 60.0
470.0 70.0
495.0 30.0
495.0 35.0
495.0 40.0
495.0 45.0
495.0 50.0
495.0 55.0
495.0 75.0
508.0 20.0
508.0 25.0
508.0 35.0
508.0 40.0
508.0 50.0
508.0 60.0
508.0 70.0
508.0 80.0
508.0 110.0
521.0 20.0
521.0 25.0
521.0 30.0
521.0 50.0
521.0 60.0
521.0 70.0
521.0 75.0
521.0 80.0
521.0 90.0
546.0 20.0
546.0 30.0
546.0 40.0
546.0 50.0
546.0 60.0
550.0 80.0
558.8 20.0
558.8 25.0
558.8 35.0
558.8 40.0
558.8 45.0
558.8 50.0
558.8 60.0
558.8 70.0
558.8 85.0
558.8 110.0
572.0 25.0
572.0 35.0
572.0 40.0
572.0 50.0
572.0 70.0
572.0 80.0
572.0 85.0
610.0 12.7
610.0 20.0
610.0 25.0
610.0 30.0
610.0 35.0
610.0 40.0
610.0 45.0
610.0 50.0
610.0 60.0
610.0 70.0
610.0 80.0
610.0 85.0
610.0 95.0
610.0 100.0
610.0 110.0
622.0 25.0
622.0 30.0
622.0 35.0
622.0 40.0
622.0 45.0
622.0 50.0
622.0 60.0
622.0 85.0
622.0 95.0
622.0 100.0
622.0 110.0
660.0 40.0
660.0 70.0
660.0 80.0
660.0 100.0
Chemical Composition
Steel Grade Chemical Composition % by mass
Steel Name Steel Number C (max) Si (max) Mn (max) P (max) S (max) Other elements
E355* 1.058 0.22 0.55 1.6 0.030 0.035
*Additions of Nb, V and Ti are permitted at the discretion of the manufacturer, the content of these elements shall be reported.
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