Material 1.0722

Free-cutting steel

The material 10SPb20 is a free-cutting steel alloyed with silicon. The addition of silicon improves hardenability. The addition of lead improves machinability.

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1.0722

Standards

HDIN / EN US-Standard AFNOR UNI JIS request
10SPb20 CF10SPb20 request

Material Category: Free-cutting steel

Chemical Composition

C % Si % Mn % P % S % Pb %
0,07 - 0,13 max 0,40 0,70 - 1,10 max 0,060 0,150 - 0,250 0,200 - 0,350

 

Mechanical Properties

1.0722 / 10SPb20
Rolled and peeled		  
Dimension
mm		   Tensile strength (Rm)
N/mm²		 Hardness
(HBW)
16 - 40 mm   360 - 530 N/mm² <= 156 HBW
40 - 63 mm   360 - 530 N/mm² <= 156 HBW
63 - 100 mm   350 - 490 N/mm² <= 146 HBW
   
Cold drawn      
Dimension
mm		 0,2% Yield strength (Rp0,2)
N/mm²		 Tensile strength (Rm)
N/mm²		 Elongation (A5, 65)
%
5 - 10 mm >= 410 N/mm² 520 - 780 N/mm² >= 7 %
10 - 16 mm >= 390 N/mm² 490 - 740 N/mm² >= 8 %
16 - 40 mm >= 360 N/mm² 460 - 720 N/mm² >= 9 %
41 - 63 mm >= 295 N/mm² 410 - 660 N/mm² >= 10 %
64 - 100 mm >= 235 N/mm² 380 - 630 N/mm² >= 11 %

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