Free Cutting Steel - Schmolz + Bickenbach AG
Free Cutting Steel - Schmolz + Bickenbach AG
Free Cutting Steel - Schmolz + Bickenbach AG
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<strong>Free</strong> <strong>Cutting</strong> <strong>Steel</strong>
Chemical<br />
composition<br />
Mechanical<br />
properties<br />
STEEL SS-EN 10277-3 11SMn30+C 11SMnPb30+C 35SPb20+C<br />
DESCRIPTION Low carbon Low carbon, Medium carbon,<br />
leaded leaded<br />
Replacing BS 220-230 M07 220-230 M07 Pb 212-225 M36 Pb<br />
DIN 9SMn28K 9SMnPb28 K 35SPb20 K<br />
Dimensions mm 5 - 100 3 - 100 5 - 80<br />
Tolerance ISO h9 h9 h10<br />
Dimensions mm 5 - 70 5 - 70 5 - 70<br />
Tolerance ISO h11 h11 h11<br />
Dimensions mm 6 - 50<br />
Tolerance ISO h11<br />
%C max 0,14 max 0,14 0,32 - 0,39<br />
%Si max 0,05 max 0,05 max 0,40<br />
%Mn 0,90 - 1,30 0,90 - 1,30 0,70 - 1,10<br />
%P max 0,11 max 0,11 max 0,06<br />
%S 0,27 - 0,33 0,27 - 0,33 0,15 - 0,25<br />
%Pb 0,20 - 0,35 0,15 - 0,35<br />
Tensile ≥ 5 ≤ 10 mm 510 - 810 510 - 810 640 - 880<br />
strength > 10 ≤ 16 mm 490 - 760 490 - 760 590 - 830<br />
(N/mm 2 ) > 16 ≤ 40 mm 460 - 710 460 - 710 560 - 800<br />
> 40 ≤ 63 mm 400 - 650 400 - 650 530 - 760<br />
> 63 ≤100 mm 360 - 630 360 - 630 510 - 680<br />
Yield point ≥ 5 ≤ 10 mm 440 440 480<br />
Rp 0,2 > 10 ≤ 16 mm 410 410 400<br />
(N/mm 2 ) > 16 ≤ 40 mm 375 375 360<br />
min > 40 ≤ 63 mm 305 305 340<br />
> 63 ≤100 mm 245 245 300<br />
Elongation ≥ 5 ≤ 10 mm 6 6 6<br />
A5 (%) > 10 ≤ 16 mm 7 7 7<br />
min > 16 ≤ 40 mm 8 8 8<br />
> 40 ≤ 63 mm 9 9 9<br />
> 63 ≤100 mm 9 9 9<br />
Hardness ≥ 5 ≤ 16 mm 170 - 220 170 - 220 200 - 260<br />
HB5/750 > 16 ≤ 40 mm 160 - 210 160 - 210 190 - 250<br />
approx > 40 ≤ 63 mm 150 - 200 150 - 200 185 - 240<br />
> 63 ≤100 mm 140 - 190 140 - 190 175 - 230<br />
Form of delivery<br />
Stocklength 3 m<br />
Rounds 13 – 100 mm and hexagons 11 – 70 mm<br />
are delivered with chamfered ends.<br />
Straightness (SS-EN 10278 B.1.2)<br />
Rounds 11SMn30 and 11SMnPb30 0,3 mm/m<br />
Rounds 35SPb20 0,5 mm/m<br />
Hexagons and squares 1 mm/m<br />
Surface finish<br />
The arithmetical mean deviation Ra for cold drawn steel<br />
bars is max 10 μm. Normally it does not exceed 5 μm.<br />
BOXHOLM STÅL AB<br />
Box 1<br />
SE-590 10 Boxholm<br />
Phone: +46 (0)142 551 00<br />
Fax +46 (0)142 519 68<br />
www.bxs.se sales@bxs.se<br />
Surface class<br />
SS-EN 10277-1 class 2.<br />
Quality control – Quality assurance<br />
Quality control can include crack detection, ultrasonic testing,<br />
testing of mechanical properties and chemical composition.<br />
The quality system of Boxholm Stål AB is certified according to<br />
ISO-TS 16949 and SS-EN ISO 9001.<br />
Data given in this leaflet may be changed without notice.
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