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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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Standards
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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