Dual Phase Steel
Dual Phase Steel
Docol 800DP Dual Phase Steel (DP)
Docol 800DP:Docol 800DP dual-phase steel has good formability and can be used in the production of automotive safety components. This steel is subjected to a special heat treatment, which mainly produces a two-phase structure. Ferrite, which can impart formability, represents one phase, while martensite, which is responsible for strength, represents the other phase. Bainite may exist as a complementary phase.
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Docol 800DP Dual Phase Steel (DP) Description
Docol 800DP:Docol 800DP dual-phase steel has good formability and can be used in the production of automotive safety components. This steel is subjected to a special heat treatment, which mainly produces a two-phase structure. Ferrite, which can impart formability, represents one phase, while martensite, which is responsible for strength, represents the other phase. Bainite may exist as a complementary phase.
Mechanical Properties
|
Steel Grade |
Standard |
Plating |
Test Direction |
Yield Strength Rp0.2 (MPa) |
Tensile Strength Rm (MPa) |
Extension Rate A80( min%) |
Minimum Bend Inner Diameter for 90 ° Bend |
|
Docol CR 440Y780T- DP |
VDA239- 100:2016 |
UC, GA, ZA |
L |
440-550 |
780-900 |
14 |
UC 1.0xt GI, GA, FI 1.8xt |
|
Docol CR 450Y780T- DP |
SSAB |
UC |
L |
450-550 |
780-900 |
15 |
1.0xt |
|
Docol CR 390Y800T- DL |
SSAB |
UC |
T |
350- |
800-950 |
13 |
1.0xt |
|
Docol CR 500Y800T- DP |
SSAB |
UC |
T |
500-650 |
800-950 |
10 |
1.0xt |
|
Docol 800DPX |
SSAB |
GI, ZA |
T |
620-770 |
800-950 |
10 |
0.9xt |
Chemical Composition
|
Steel Grade |
Plating |
C (max %) |
Si (max %) |
Mn (max %) |
P (max %) |
S (max %) |
Al ( %) |
Nb Title (max %) |
Cr Mo (max%) |
B (max %) |
Cu (max %) |
|
Docol CR 440Y780T- DP |
UC |
0.16 |
0.40 |
1.80 |
0.020 |
0.010 |
0.015-1.00 |
- |
- |
0.20 |
0.005 |
|
Docol CR 440Y780T- DP |
GI,GA,ZA |
0.18 |
0.80 |
2.50 |
0.050 |
0.010 |
0.015-1.00 |
0.15 |
1.00 |
0.20 |
0.005 |
|
Docol CR 450Y780T- DP |
UC |
0.16 |
0.40 |
1.80 |
0.020 |
0.010 |
0.015- |
0.10 |
- |
- |
- |
|
Docol CR 390Y800T- DL |
UC |
0.16 |
0.40 |
1.80 |
0.020 |
0.010 |
0.015- |
0.10 |
- |
- |
- |
|
Docol CR 500Y800T- DP |
UC |
0.15 |
0.40 |
1.80 |
0.020 |
0.010 |
0.015- |
0.10 |
- |
- |
- |
|
Docol 800DPX |
GI, ZA |
0.18 |
1.00 |
2.50 |
0.050 |
0.010 |
0.015-1.00 |
0.15 |
1.00 |
0.20 |
0.005 |
Plating
|
Plating Type |
Plating Grade |
Standard |
Single-sided coating quality, single-point test (g/m2) |
Single side thickness, for reference only(μm) |
|
GI |
40/40 |
VDA239-100 |
40-60 |
5.6-8.5 |
|
GI |
50/50 |
VDA239-100 |
50-70 |
7.0-9.9 |
|
GI |
60/60 |
VDA239-100 |
60-90 |
8.5-12.7 |
|
GI |
70/70 |
VDA239-100 |
70-100 |
9.9-14.1 |
|
GI |
85/85 |
VDA239-100 |
85-115 |
12.0-16.2 |
|
GI |
115/115 |
VDA239-100 |
115-155 |
16.2-21.8 |
|
GA |
40/40 |
VDA239-100 |
40-60 |
5.6-8.5 |
|
GA |
50/50 |
VDA239-100 |
50-80 |
7.0-11.3 |
|
ZA |
95 |
As required |
7- |
|
|
ZA |
130 |
As required |
10- |
