Material 1.0757

Free-cutting steel

The material 46SPb20 is a silicon-killed free-cutting steel. The addition of lead makes the material easy to machine. 46SPb20 can be tempered.

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1.0757

Standards

HDIN / EN US-Standard AFNOR UNI JIS request
46SPb20 45SPb20 request

Material Category: Free-cutting steel

Heat Treatment

Quenching 840 - 870 C°, quenching water or oil, duration >= 30 minutes
Tempering 540 - 680 C°, duration >= 1 hour

Weldability

The material 46SPb20 should not be welded.

Chemical Composition

C % Si % Mn % P % S % Pb %
0,42 - 0,50 max 0,40 0,70 - 1,10 max 0,060 0,150 - 0,250 0,150 - 0,350

 

Product Specifications

DIN EN 10277
DIN EN 683-4

Mechanical Properties

1.0757 / 46SPb20
Bright steel products. Free-cutting steels. Quenched and tempered steels.
Rolled and Peeled
Dimension (mm) Tensile strength (Rm) Hardness (HBW)
16 - 40 mm 590 - 760 N/mm² <= 222 HBW
40 - 63 mm 580 - 730 N/mm² <= 213 HBW
63 - 100 mm 560 - 710 N/mm² <= 207 HBW
 
Quenched and Tempered
and Peeled		 0.2% Yield strength (Rp0.2) Tensile strength (Rm) Elongation (A5,65)
16 - 40 mm >= 430 N/mm² 650 - 800 N/mm² >= 13 %
40 - 63 mm >= 370 N/mm² 630 - 780 N/mm2 >= 14 %
63 - 100 mm >= 370 N/mm² 630 - 780 N/mm² >= 14 % 
       
Cold drawn and
Quenched and Tempered 		 0.2% Yield strength (Rp0.2) Tensile strength (Rm) Elongation (A5,65)
16 - 40 mm >= 430 N/mm² 650 - 800 N/mm² >= 13 %
40 - 63 mm >= 370 N/mm² 630 - 780 N/mm² >= 14 % 
63 - 100 mm >= 370 N/mm²  630 - 780 N/mm² >= 14 % 
       
Cold drawn 0.2% Yield strength (Rp0.2) Tensile strength (Rm) Elongation (A5,65)
5 - 10 mm >=570 N/mm² 740 - 980 N/mm² >= 5 %
10 - 16 mm >= 470 N/mm2 690 - 930 N/mm² >= 6 % 
16 - 40 mm >= 400 N/mm² 640 - 880 N/mm² >= 7 % 
40 - 63 mm >= 380 N/mm2 610 - 850 N/mm² >= 8 % 
63 - 100 mm >= 340 N/mm2 580 - 820 N/mm² >= 8 %
       
Cold drawn and
Quenched and Tempered		 0.2% Yield strength (Rp0.2) Tensile strength (Rm) Elongation (A5,65)
5 - 10 mm >= 595 N/mm² 850 - 1000 N/mm² >= 8 % 
10 - 16 mm >= 560 N/mm² 800 -950 N/mm² >= 9 %
16 - 40 mm >= 490 N/mm² 700 - 850 N/mm² >= 10 %
40 - 63 mm >= 490 N/mm2 700 -850 N/mm2 >= 11 % 
63 - 100 mm >= 455 N/mm2 650 - 850 N/mm² >= 11 % 

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