DIMENSIONS
DIMENSIONS & PROPERTIES - Steel & Tube
DIMENSIONS & PROPERTIES - Steel & Tube
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T&P<br />
tube<br />
and<br />
pipe<br />
ERW Welded Tube<br />
Technical Specifications<br />
The following mechanical properties quoted are for the mild steel strip<br />
prior to being manufactured into tubular sections.<br />
When forming steel strip into tubular sections, the mechanical properties<br />
are affected. The extent of this effect depends on the specific dimensions<br />
of tube being produced and particularly the tube diameter to thickness<br />
ratio. In general during tube forming, the yield stress will be substantially<br />
increased, the tensile strength slightly increased and elongation reduced.<br />
Specified Mechanical Properties of Strip<br />
Yield stress 160 MPa (min.) 215 MPa (max.)<br />
Tensile stress 285 MPa (min.) 340 MPa (max.)<br />
Elongation (min.) 0.6 < 1.0mm = 41%, 1.0 < 1.6mm = 43%, 1.6mm + = 45%<br />
Normal range of Mechanical Properties of strip<br />
Yield stress 165 to 205 MPa<br />
Tensile stress 290 to 330 MPa<br />
Elongation 41 to 55%<br />
Specified Chemical Composition - (Ladle Analysis)<br />
Carbon C 0.02 to 0.064% max.<br />
Manganese Mn 0.17 to 0.24% max.<br />
Phosphorous P 0.022% max.<br />
Sulphur S 0.030 max.<br />
Vanadium V 0.010% max.<br />
Silicon Si 0.010% max.<br />
ERW Size Range<br />
ERW Square Tube<br />
Size(mm) LN(m) Kg/m<br />
9.5 x 9.5 x 1.2 5.5 0.34<br />
9.5 x 9.5 x 1.6 5.5 0.40<br />
12.7 x 12.7 x 1.2 5.5 0.49<br />
12.7 x 12.7 x 1.6 5.5 0.58<br />
16.0 x 16.0 x 1.2 5.5 0.55<br />
16.0 x 16.0 x 1.6 5.5 0.72<br />
16.0 x 16.0 x 2.0 5.5 0.92<br />
19.0 x 19.0 x 1.2 5.5 0.68<br />
19.0 x 19.0 x 1.6 5.5 0.89<br />
19.0 x 19.0 x 2.0 5.5 1.11<br />
22.2 x 22.2 x 1.2 5.5 0.81<br />
22.2 x 22.2 x 1.6 5.5 1.07<br />
22.2 x 22.2 x 2.0 5.5 1.31<br />
25.4 x 25.4 x 1.2 5.5 0.91<br />
25.4 x 25.4 x 1.4 5.5 1.05<br />
25.4 x 25.4 x 1.6 5.5 1.19<br />
25.4 x 25.4 x 2.0 5.5 1.47<br />
31.8 x 31.8 x 1.2 5.5 1.16<br />
31.8 x 31.8 x 1.6 5.5 1.53<br />
31.8 x 31.8 x 2.0 5.5 1.89<br />
35.0 x 35.0 x 1.2 5.5 1.37<br />
35.0 x 35.0 x 1.6 5.5 1.64<br />
35.0 x 35.0 x 2.0 5.5 2.03<br />
38.0 x 38.0 x 1.2 5.5 1.37<br />
38.0 x 38.0 x 2.0 5.5 2.25<br />
51.0 x 51.0 x 1.6 5.5 2.44<br />
ERW Rectangular Tube<br />
Size(mm) LN(m) Kg/m<br />
25.4 x 12.7 x 1.2 5.5 0.68<br />
25.4 x 12.7 x 1.6 5.5 0.89<br />
31.8 x 16.0 x 1.6 5.5 1.19<br />
35.0 x 19.0 x 1.2 5.5 0.97<br />
35.0 x 19.0 x 1.6 5.5 1.27<br />
35.0 x 19.0 x 2.0 5.5 1.57<br />
38.0 x 25.4 x 1.6 5.5 1.87<br />
51.0 x 25.4 x 1.2 5.5 1.37<br />
51.0 x 25.4 x 1.6 5.5 1.82<br />
51.0 x 25.4 x 2.0 5.5 2.25<br />
63.5 x 38.0 x 2.0 5.5 3.03<br />
ERW Round Tube<br />
Refer to Tube and Pipe Quick<br />
Reference Tables<br />
64<br />
Dimensions and Properties Handbook
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