Material Specs 1

[Texol]

I have been asked to look at an engineering drawing for a customer of mine but I don’t recognise the material spec called up.

The spec is BS EN 0025 S275

Does anyone have any information on it?

Thanks

 

[jimsan]

Hello Texol
I think the material standard is BS EN 10025 , formerly BS4360. Although I don't have a full copy of this specification, the material is a carbon/manganese steel and the chemistry for S275 is :-
Carbon <=0.18%
Manganese <= 1.50%
Sulphur & Phosphorus 0.035% max.
Nitrogen <= 0.009%

S275R = BS4360 Grade 43B
S275J0 = BS4360 Grade 43C
S275J2G3 = BS4360 Grade 43D
S275J2G4 No BS4360 equivalent

Hope this helps.

Jimsan

 

[TVP]

In addition to the composition data, the 275 in the designation indicates the nominal yield strength in MPa. The minimum required properties vary with thickness. Ultimate tensile strength is ~ 430-580 MPa and minimum elongation is ~ 14%.