Steel are regarded as free cutting if the sulfur content is at least 0,1%. The steel are designated in accordance with EN 10027-1 and the steel numbers are allocated in accordance with EN 10027-2. The Standard includes material designations, chemical composition and mechanical properties
In accordance with this standard the information to be supplied by the purchases includes the following...
a) The quantity to be delivered. e.g. 20 off
b) The product form e.g. round or square.
c) The Standard of for dimensions e.g Euronorm 59 (HR Square Bars for General Purposes) / Euronorm 60 (HR Round Bars for General Purposes) etc
d) The dimensions and tolerances on dimensions and shape if applicable (Letters denoting the tolerances)
e) The number of the European Standard e.g EN 10087
f) Steel name (in accordance with EN 10027-1 (chemical composition) or number in accordance with EN 10027-2.
e.g. 35S20 (0.35% carbon, 0,2% Sulpher - average %'s) or 1.7026
g) The standard designation for the test report.
Example...
20, round, Euronorm 60, 40 x 8,000;
BS EN 10087, 35S20,
EN 10204 2.2
Tables identifying composition,yield strength and tensile strength at room temperature are provided on webpage BS-EN-0087 Steels
Table of steels included in EN 10087
| Name |
Number |
|
Name |
Number |
|
Name |
Number |
|
Name |
Number |
|
Name |
Number |
| 11SMn30 |
1.0715 |
|
10S20 |
1.0721 |
|
35S20 |
1.0726 |
|
36SMn14 |
1.0764 |
|
44SMn28 |
1.0762 |
| 11SMnPb30 |
1.0718 |
|
10SPb20 |
1.0722 |
|
35SPb20 |
1.0756 |
|
36SMnPb14 |
1.0765 |
|
44SMnPb28 |
1.0763 |
| 11SMn37 |
1.0736 |
|
15SMn13 |
1.0725 |
|
|
|
|
38SMn28 |
1.0760 |
|
46S20 |
1.0727 |
| 11SMnPb38 |
1.0737 |
|
|
|
|
|
|
|
38SMnPb28 |
1.0761 |
|
46SPb20 |
1.0757 |
|