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En 11SMn30

1) The document describes the chemical composition and mechanical features of a high machinability steel called 11SMn30 that is not heat treated. 2) It lists the carbon, silicon, manganese, phosphorus, and sulfur content ranges for the steel according to the EN 10277-3 standard. 3) The steel has good machinability and easy chip fragmentation when machined, but due to its sulfur and phosphorus contents, it is not generally recommended for welding.

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386 views1 page

En 11SMn30

1) The document describes the chemical composition and mechanical features of a high machinability steel called 11SMn30 that is not heat treated. 2) It lists the carbon, silicon, manganese, phosphorus, and sulfur content ranges for the steel according to the EN 10277-3 standard. 3) The steel has good machinability and easy chip fragmentation when machined, but due to its sulfur and phosphorus contents, it is not generally recommended for welding.

Uploaded by

firebolt_hari2006
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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11SMn30

High machinability steel not destined to heat (W. NR. 1.0715)


treatment

CHEMICAL COMPOSITION: (heat analysis according to the EN 10277-3 standard)

C% Si % Mn % P% S%
FROM - - 0,90 - 0,27
TO 0,14 0,05 1,30 0,11 0,33

*MECHANICAL FEATURES: (according to the EN 10277-3 standard)

rolled + peeled rolled Cold drawn


(+SH ) ( +C )
Thickness Rp0,2
A5 %
mm minimum
HB hardness Rm (MPa) Rm (MPa) minimum
values
values
(MPa)
510 440 510 - 810 6
>1016 410 490 - 760 7
>1640 112 - 169 380 - 570 375 460 - 710 8
>4063 112 - 169 370 - 570 305 400 - 650 9
>63100 107 - 154 360 - 520 245 360 - 630 9

* Delivery condition: as rolled

PROPERTIES :

Machinability:

This steel grade is marked by a good machinability on machine tools and by an easy fragmentation
of chips.

Weldability:

Due to the high sulphur and phophorus content free-cutting steels not destined to heat treatment are
not generally recommended for welding.

Notes:

CORRESPONDENCE WITH OTHER STANDARDS ( purely as an indication ) :

UNI 4838 DIN 1651 AFNOR 35-561 ISO 683-9 EN 10087


CF 9 SMn 28 9SMn28 S 250 11 SMn 28 11SMn30

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