Strenx® Tube 960MH

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General Product Description

Strenx® Tube 960MH is an HF-welded cold-formed structural hollow section made of hot-rolled high-strength steel with a minimum yield strength of 960 MPa 

Its high strength combined with naturally stiff form of welded hollow section enables construction of stronger and lighter structures. Strenx® Tube 960MH meets or exceeds the requirements of EN 10219-3 (2020). Typical applications include load-bearing structures in the lifting, handling and transportation segments. 

Strenx® Tube 960MH is available in circular, square and rectangular shapes. Other shapes and sizes are available upon request.

The maximum length of the tubes is 472.440" - 708.660", depending on the size. Longer or cut-to-length tubes are available upon request.

It is not recommended to hot dip galvanize Strenx Tube 960MH hollow sections. 

Dimension Range

Strenx® Tube 960MH is available at circular, square and rectangular shapes.
Shapes
Shapes
Circular (in)
Dimensions
5.500 - 8.626
Shapes
Shapes
Square (in)
Dimensions
3.937x3.937 - 7.874x7.874
Shapes
Shapes
Rectangular (in)
Dimensions
4.724x3.149 - 9.843x5.906
Shapes
Shapes
Wall thickness (in)
Dimensions
0.157 - 0.236
Shapes
Shapes
Mill length (in)
Dimensions
236.220 - 472.440 / 708.660

Other shapes and sizes are available upon request. 

Circular Dimensions

Outer diameter (in)
Outer diameter (in)
5.500"
0.157" (ft-lbs)
9.003
0.197" (ft-lbs)
11.154
0.236" (ft-lbs)
13.304
Outer diameter (in)
Outer diameter (in)
6.626"
0.157" (ft-lbs)
10.885
0.197" (ft-lbs)
13.505
0.236" (ft-lbs)
16.126
Outer diameter (in)
Outer diameter (in)
8.626"
0.157" (ft-lbs)
—
0.197" (ft-lbs)
17.738
0.236" (ft-lbs)
21.165

Square Dimensions

Height x Width (in)
Height x Width (in)
3.937 x 3.937
0.157" (ft-lbs)
7.794
0.197" (ft-lbs)
—
0.236" (ft-lbs)
—
Height x Width (in)
Height x Width (in)
4.724 x 4.724
0.157" (ft-lbs)
9.474
0.197" (ft-lbs)
11.691
0.236" (ft-lbs)
13.774
Height x Width (in)
Height x Width (in)
5.512 x 5.512
0.157" (ft-lbs)
11.221
0.197" (ft-lbs)
13.774
0.236" (ft-lbs)
16.327
Height x Width (in)
Height x Width (in)
0.2325 x 5.906
0.157" (ft-lbs)
—
0.197" (ft-lbs)
14.849
0.236" (ft-lbs)
17.604
Height x Width (in)
Height x Width (in)
6.299 x 6.299
0.157" (ft-lbs)
—
0.197" (ft-lbs)
15.924
0.236" (ft-lbs)
18.813
Height x Width (in)
Height x Width (in)
7.087 x 7.087
0.157" (ft-lbs)
—
0.197" (ft-lbs)
18.007
0.236" (ft-lbs)
21.366
Height x Width (in)
Height x Width (in)
7.874 x 7.874
0.157" (ft-lbs)
—
0.197" (ft-lbs)
—
0.236" (ft-lbs)
23.920

Rectangular Dimensions

Height x Width (in)
Height x Width (in)
4.724 x 3.149
0.157" (ft-lbs)
7.794
0.197" (ft-lbs)
—
0.236" (ft-lbs)
—
Height x Width (in)
Height x Width (in)
5.906 x 3.937
0.157" (ft-lbs)
9.944
0.197" (ft-lbs)
12.229
0.236" (ft-lbs)
14.446
Height x Width (in)
Height x Width (in)
6.299 x 3.150
0.157" (ft-lbs)
9.474
0.197" (ft-lbs)
11.691
0.236" (ft-lbs)
20.5
Height x Width (in)
Height x Width (in)
7.087 x 3.937
0.157" (ft-lbs)
11.221
0.197" (ft-lbs)
13.774
0.236" (ft-lbs)
16.327
Height x Width (in)
Height x Width (in)
7.874 x 3.150
0.157" (ft-lbs)
—
0.197" (ft-lbs)
14.849
0.236" (ft-lbs)
17.604
Height x Width (in)
Height x Width (in)
7.874 x 4.724
0.157" (ft-lbs)
—
0.197" (ft-lbs)
15.924
0.236" (ft-lbs)
18.813
Height x Width (in)
Height x Width (in)
9.843 x 5.906
0.157" (ft-lbs)
—
0.197" (ft-lbs)
—
0.236" (ft-lbs)
23.920

Mechanical Properties

Strenx® Tube 960MH

Yield strength Rp0.2
(min ksi)
139
Tensile strength Rm
(ksi)
142 - 181
Elongation A5 1)
(min %)
6

1) The hollow sections with D/T < 15 (round) or (B + H)/2T < 12,5 (rectangular and square), the minimum value of elongation is reduced by 2.

The mechanical properties for rectangular hollow sections are tested by SSAB on the longer side of the cross section.

Mechanical properties meet the requirements of EN 10219-3 (2020).

Impact Properties

Product
Product
Strenx® Tube 960MH
Min impact energy, transverse test,
Charpy V 0.393x0.393" test specimen
30 ft-lbs / -4 °C

1) Impact testing according to EN ISO 148-1 is performed on thicknesses ≥ 0.236". The specified minimum value corresponds to a full-size specimen.

Chemical Composition (heat analysis)

C
(max %)
C
(max %)
0.12
Si
(max %)
0.25
Mn
(max %)
1.20
P
(max %)
0.020
S
(max %)
0.010
Nb
(max %)
0.050 1)
V
(max %)
0.050 1)
Ti
(max %)
0.07 1)

1) Sum of Nb, V and Ti = max 0.22%

Chemical composition meets or exceeds the requirements of EN 10219-3 (2020).

In addition, boron (B), molybdenum (Mo), nickel (Ni) or copper (Cu) may be used as alloying elements either singly or in combination.

The steel is grain refined.

Carbon Equivalent CET(CEV)

Wall Thickness (in)
Wall Thickness (in)
Typ CET(CEV)
0.157 - 0.236
0.28 (0.51)

Tolerance Circular

Characteristic
Characteristic
Outside diameter (D) 1)
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
±1%, with a minimum of ±0.5” and a maximum of ± 0.3937”
Characteristic
Characteristic
Out-of-roundness
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
2%, when D/T ≤ 3.937”
Characteristic
Characteristic
Thickness (T)
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
When D ≤ 12.752": -5%/+10%, with a minimum of ±0.008" and maximum ±0.020"
When 14.000" ≤ D ≤ 16.000" : ±10%, when T ≤ 0.197" / ±0.020", when T > 0.197"
When D > 16.000" : ±10%, with a maximum of ±0.079"
Characteristic
Characteristic
Straightness
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.20% of total length and 0.118” over any 39.37” length
Characteristic
Characteristic
Mass per unit length
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
Individual tube: ±6%
Characteristic
Characteristic
Mill length
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
0/+1.969", 236.220" ≤ L ≤ 472.440 - 708.660" (standard lengths 236.220 & 472.440")
Characteristic
Characteristic
Exact length
Circular hollow sections
Tolerances meet or exceed the requirements of EN 10219
Agreed at the time of enquiry and order

1) All external dimensions are measured with a minimum distance from the end of the section. The distance must be a minimum of 3.937".

Tolerance Square

Characteristic
Characteristic
Outside dimensions (B, H) 1)
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
When B, H < 3.937" ±1 % minimum ±0.020"
When 3.937" ≤ B, H ≤ 7.874": ±0.8%
When B, H > 7.874": ±0.6%
Characteristic
Characteristic
Thickness (T)
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
5%/+10%, with a minimum of ±0.008" and maximum ±0.020"
Characteristic
Characteristic
External corner profile
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
2.0 x T – 3.0 x T
Characteristic
Characteristic
Squareness of side
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
90° ±1°
Characteristic
Characteristic
Concavity/convexity
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.8%, with a minimum of 0.020"
Characteristic
Characteristic
Twist
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.079" + 0.020"/39.370"
Characteristic
Characteristic
Straightness
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.20% of total length and 0.118” over any 39.37” length
Characteristic
Characteristic
Mass per unit length
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
Individual tube: ±6%
Characteristic
Characteristic
Mill length
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
0/+1.969", 236.220" ≤ L ≤ 472.440 - 708.660" (standard lengths 236.220 & 472.440")
Characteristic
Characteristic
Exact length
Square hollow sections
Tolerances meet or exceed the requirements of EN 10219
Agreed at the time of enquiry and order

1) All external dimensions are measured with a minimum distance from the end of the section. The distance must be a minimum of 3.937".

Tolerance Rectangular

Characteristic
Characteristic
Outside dimensions (B, H) 1)
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
When B, H < 3.937" ±1 % minimum ±0.020"
When 3.937" ≤ B, H ≤ 7.874": ±0.8%
When B, H > 7.874": ±0.6%
Characteristic
Characteristic
Thickness (T)
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
5%/+10%, with a minimum of ±0.008" and maximum ±0.020"
Characteristic
Characteristic
External corner profile
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
2.0 x T – 3.0 x T
Characteristic
Characteristic
Squareness of side
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
90° ±1°
Characteristic
Characteristic
Concavity/convexity
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.8%, with a minimum of 0.020"
Characteristic
Characteristic
Twist
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.079" + 0.020"/39.370"
Characteristic
Characteristic
Straightness
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
0.20% of total length and 0.118” over any 39.37” length
Characteristic
Characteristic
Mass per unit length
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
Individual tube: ±6%
Characteristic
Characteristic
Mill length
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
0/+1.969", 236.220" ≤ L ≤ 472.440 - 708.660" (standard lengths 236.220 & 472.440")
Characteristic
Characteristic
Exact length
Rectangular hollow sections
Tolerances meet or exceed the requirements of EN 10219
Agreed at the time of enquiry and order

1) All external dimensions are measured with a minimum distance from the end of the section. The distance must be a minimum of 3.937".

Delivery Conditions

The tubes are cold formed and high frequency welded from thermomechanically rolled steel. 

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