How to specify Advance
To make it easier to specify Advance sections from Tata Steel we have developed a simplified naming protocol for both material specification and section designation.
The standard method for specifying the dimensions of a standard hot rolled steel section includes using initials to designate the type of section, for example: 457x191x67UB, is a Universal Beam of nominal dimensions 457mm deep, 191mm wide, weighing 67Kg/m. Because CE marking is not mandatory in the UK, it is, for example, technically feasible for a Universal Beam to be supplied in the UK that is not CE marked. We have therefore introduced a change to the section dimension designation system for our Advance section range, which guarantees that products supplied by Tata Steel, using the new designation system, will comply with CE mark requirements. The table below shows the new section designation system for Advance sections from Tata Steel.
| Section designation system | |||
| Tata Steel Advance® sections | Old designation system | ||
| UKB | UK Beam | UB | Universal Beam |
| UKC | UK Column | UC | Universal Column |
| UKPFC | UK Parallel Flange Channel | PFC | Parallel Flange Channel |
| UKA | UK Angle | RSA | Rolled Steel Angle |
| UKBP | UK Bearing Pile | UBP | Universal Bearing Pile |
| UKT | UK Tee | ||
| The UK prefix to each of the new designations simply identifies that it is a section from the Advance range of sections manufactured for the UK market by Tata Steel, which is guaranteed to be CE marked. It is also a guarantee that the sections supplied will carry the many other benefits of naming Tata Steel as the supplier Example – 457x191x67UB becomes 457x191x67UKB All the Advance structural steel sections are supplied in accordance with the Standards indicated in the table below. |
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| Standards applicable to Advance® sections from Tata Steel | |||
|
Section type |
Advance® designation |
Dimensions |
Tolerances |
| UK Beam UK Column UK Bearing Pile |
UKB UKC UKPBP |
BS 4-1:2005 | BS EN 10034:1993 |
| UK Parallel Flange Channel | UKPFC | BS 4-1:2005 | BS EN 10279:2000 |
| UK Angle | UKA | BS EN 10056-1:1999 | BS EN 10056-2:1993 |
| UK Tee (Cut from Universal Beams or Columns) |
UKT | BS 4-1:2005 | |
| ASB (Asymmetric Slimflor Beam) |
ASB | Generally BS EN 10034:1993 |
|
|
|
|||
| The dimensions of ASBs are as contained in this (and other) publications but are not covered by a British Standard. | |||
Steel sections used in the UK should now comply with EN10025:2004:Part 2 – Technical delivery conditions for non-alloy structural steels. The designation system used in the standard is very different to the perhaps still more familiar BS4360, grade 43 and grade 50 type designations.
The table below shows the typical UK grades and properties for structural sections to EN10025:2004:Part 2, how these relate to the simplified material specification for Advance sections from Tata Steel and the nearest equivalent grades for the earlier British Standard BS4360, which is now superseded.
|
Comparison of grades for Advance® sections, EN10025:Part2:2004 and BS4360:1990 |
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|
Advance®sections from Tata Steel |
EN10025:Part 2:2004 |
BS4360:1990 |
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Grade |
Grade |
Yield (Reh) min |
Tensile (Rm) |
Charpy v-notch longitudinal |
Grade |
|
|
Strength at t=16mm (N/mm2) |
Temp(0C) |
Energy(J) t=16mm |
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|
Advance275JR |
S275JR |
275 |
410/560 |
20 |
27 |
43B |
|
Advance275J0 |
S275J0 |
0 |
43C |
|||
|
Advance275J2 |
S275J2 |
-20 |
43D |
|||
|
Advance355JR |
S355JR |
355 |
470/630 |
20 |
27 |
50B |
|
Advance355J0 |
S355J0 |
0 |
50C |
|||
|
Advance355J2 |
S355J2 |
-20 |
50D |
|||
|
Advance355K2 |
S355K2 |
-20 |
40 |
50DD |
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It should be noted that for both S275 and S355 steel grades, Advance sections can be specified in JR, J0 and J2 sub-grades. For situations where greater toughness is required, sub grade K2 is available in S355 grade steel.
Specification using EN10025:Part2:2004 nomenclature requires the full designation to be stated, for example;
EN10025 : Part 2 : 2004 - S275JR
Even if this designation system is used it does not guarantee that a CE marked product will be supplied in the UK.
However, using the new simplified designation system for Advance® sections from Tata Steel, for example;
Advance275JR
guarantees that the product supplied will meet all the requirements of EN10025:Part2:2004 and that it will be CE marked.
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