|
Mechanical properties
| grade |
Rm
MPa
Tensile strength |
a
Rel
Mpa
Yield strength
not more than |
a
A80mm
%
elongation after being broken |
N value |
R value |
|
not less than |
| DC01 |
270-410 |
280b |
28 |
- |
- |
| DC03 |
270-370 |
240 |
34 |
- |
1.3 |
| DC04 |
270-350 |
210 |
38 |
0.18 |
1.6 |
| DC05 |
270-330 |
180 |
40 |
0.20 |
1.6 |
| DC06 |
260-330 |
180 |
41 |
0.22 |
1.8 |
| a The sample of the tensile test is the crossed, When the yield point is not obvious,Rp0.2 should be measured.Otherwise the yield point should be eliminated.
b DC01 is recommended to be used within 6 weeks after being supplied. The upper limit of 280 Mpa is only suitable to the period of 8 days after being delivered.
c n90、r90 should be used to DC03、DC04.n,r should be used to DC06.When the thickness is more than or equal to 1.6mm,r-value can be reduced 0.2.When the thickness is more than or equal to 2mm,r-value can not be guaranteed.
R value is equal to (r90+2r45+r0）/4;n value is equal to （r90+2r45+r0）/4. | | |
