| BS 970 |
SAE (AISI) |
WERKSTOFF NO. |
| 070 M 20 |
1020 |
1.0402 |
CHEMICAL COMPOSITION
| CARBON |
: 0,15 - 0,25 |
| SILICON |
: 0,05 - 0,35 |
| MANGANESE |
: 0,40 - 0,90 |
| SULPHUR |
: 0,06 MAX |
| PHOSPHORUS |
: 0,06 MAX |
| MECHANICAL
PROPERTIES |
EN3A |
| Limited Ruling Sections |
152mm |
| Tensile Strength; MPa minimum |
430 |
| Yield Stress; MPa minimum |
215 |
| Elongation, percent Min. |
21 |
| Izod Impact Value |
|
| Brinell Hardness Number |
126 / 179 |
STANDARD STOCK SIZES IN THE AS ROLLED OR NORMALIZED CONDITION ROUND BAR
| SIZE |
Kg/m |
SIZE |
Kg/m |
SIZE |
Kg/m |
SIZE |
Kg/m |
| 20 |
2,466 |
70 |
30,210 |
130 |
104,195 |
230 |
326,148 |
| 25 |
3,853 |
75 |
34,680 |
140 |
120,841 |
240 |
355,125 |
| 30 |
5,549 |
80 |
39,458 |
150 |
138,721 |
250 |
385,336 |
| 35 |
7,553 |
85 |
44,545 |
160 |
157,833 |
280 |
493,40 |
| 40 |
9,865 |
90 |
49,393 |
170 |
178,179 |
305 |
586,34 |
| 45 |
12,485 |
95 |
55,642 |
180 |
199,757 |
330 |
685,20 |
| 50 |
15,413 |
100 |
61,654 |
190 |
222,570 |
350 |
769,84 |
| 55 |
18,650 |
108 |
71,846 |
200 |
246,641 |
|
|
| 60 |
22,195 |
115 |
81,537 |
210 |
271,893 |
|
|
| 65 |
26,049 |
120 |
88,781 |
220 |
298,403 |
|
|
TYPICAL USES
Shafts, bolts, nuts, studs, couplings, and machinery components where a low tensile strength material is required.
|
