British Standards & CE Mark

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To learn more about British Standards, please read our British Standards Explained section below.

BS EN Standards

BS EN 10025: S275JR (43A/B)
BS EN 10025: S355JR (50D)
BS EN 10028:Type 151/161: Gr. 430
BS EN 10088-2
BS EN 10083, 4 & 7
BS EN 10130
BS EN 10142
BS EN 10152
BS EN 10210-1: S275J2H (43D)
BS EN 10219-1: S275JOH (43C)

BS Standards

Other Standards

573 pt 3

Specifications - Modern / Old Standards

UK Standard

OLD Standard

Structural Sections

BS 4360:1986:Grade 43A/B

Light Section

BS 4360:1986:Grade 43A/B

Structural Hollow Section & Tube - Cold Formed

BS 6363:43C:1983

Structural Hollow Section & Tube - Hot Finished

BS 4360:43D:1990

Cold Rolled Mild Steel

BS 1449:Pt 1-5:1991

Hot Rolled Mild Steel

BS 4360:Grade 43A
 
BS 4360:Grade 50D
 
BS EN 10277:Pt 1-5:1999
BS 970:1995:EN8

Pressure Vessel Quality

BS EN 10277:Pt 1-5:1999
BS 1501:Type 151/161:430A

Bright Bars

 
BS EN 10277:Pt 1-5:1999

Black Bars

 
BS EN 10083:Pt 1-2:1991
 
BS EN 10084:1998
 
BS EN 10087:1999

Aluminium Extrusions

BS 1474:1987

Red

6082
HE30

Orange

2011
FC1

Blue

6063
HE9

Sheet & Plate

 
BS EN 515:1993
 
BS EN 573:1-4:1995
 
1050
S1B
 
3103
NS3
 
5251
NS4

Stainless Steels

BS 970:Pt 1:1991

White

1.4305
BS 303

Green

1.4301
BS 304

Black

1.4404
BS 316L

Tolerances - Modern / EU / Old Standards

 

UK Standard

EU Standard

OLD Standard

Structural Sections

DIN 1025 Parts 1-5
BS 4:Part 1:1980

Light Section

- Angles

 
BS 4848:Pt 4:1972

- Heavy Angles & Tees

 
 
BS4:Pt 1:1980

Structural Hollow Section & Tube - Cold Formed

Structural Hollow Section & Tube - Hot Finished

Cold Rolled Mild Steel

 
BS 1449:Pt 6-7:1991

Hot Rolled Mild Steel

 
BS 4360:1990

Hot Dipped Zinc Coated

 
BS 2929:1975

Bright Bars

 
BS EN 10277:Pt 1-5:1999

Black Bars

 

BS EN 10083:Pt 1-2:1991
 
BS EN 10084:1998

 

BS EN 10087:1999

Explanation of the BS EN 10027-1 : 1992 Specifications

The latest European Standards incorporate numbers and letters which identify the Properties of the various grades within the Standard.
A typical Specification example might be:

BS - indicates that this is a British Standard

EN - indicates that it holds the status of a European Standard

10027 - indicates the number of the relevant Standard

Next is a Letter denoting the type of steel. Followed by a number, being the characteristic Yield Strength in N/mm2 or the specified Minimum Tensile Strength in N/mm2.

'G' - Steel Castings.

'S' - Structural Steels.
The Number = minimum yield strength for smallest thickness.

'P' - Pressure Vessel Steels.
The Number = minimum yield strength for smallest thickness.

'L' - Linepipe Steels.
The Number = minimum yield strength for smallest thickness.

'E' - Engineering Steels.
The Number = minimum yield strength for smallest thickness.

'B' - Steels for Reinforcing Concrete.
The Number = characteristic yield strength.

'Y' - Steels for prestressing concrete.
The Number = minimum tensile strength.

'R' - Steels for or in the form of Rails.
The Number = minimum tensile strength.

'H' - Steels for Cold Rolled Flat Products of high strength steels for Cold Forming.
The Number = characteristic yield strength.

'D' - Flat Products for Cold Forming (except 'H'). Followed by:
'C' for Cold Rolled
'D' for Hot Rolled products for direct Cold Forming and
'X' for non specified rolled condition.

'T' - Tinmill Products.

'M' - Electrical Steels.

'JR' - Indicates that the Charpy Impact Test was conducted to 27 joules minimum at room temperature.

'J0' - Indicates that the Impact Test was performed to 27 joules minimum at 0 °C.

'J2' - Indicates that the Impact Test was performed to 27 joules minimum at -20 °C.

'K2' - Indicates that the Impact Test was performed to 40 joules minimum at -20 °C.

'G3' - Indicates delivery conditions are at the manufacturers discretion.

The last letter, if applicable:

'H' - Indicates Hollow Section.

'L' - Indicates qualities with specified minimum values of impact energy at a temp. of -50 °C

'M' - Indicates Thermomechanically rolled feedstock material.

'N' - Indicates Normalised or Normalised Rolled Feedstock material.

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