GMW3032
High Strength Sheet Steel, 180 MPa Through 700 MPa Yield
Galvanized metal is a kind of material that has been galvanized. The process involves coating the metal with a thin layer of zinc to protect it from corrosion. It is usually necessary to dip clean, oxode-free metal into molten zinc to form a zinc coating on the metal.
Material:
CR180/210/240/270/300, CR180/210/240/270/300IF, 240/270/300/340/380420/500/550/650/700LA, etc.
Width:
Customer's Requirement
Type:
Coil, Sheet, Plate
Tolerance:
Min Width Tolerance ±0.1
|
GMW3032M-ST-S Designation Note4, Note5
|
C
% Max |
Mn
% Max |
P
% Max |
S
% Max |
AL
Note 6
% Min |
Si
% Max |
|
CR180
|
0.06
|
0.70 | 0.80 | 0.030 | 0.015 | 0.50 |
|
CR180IF
|
0.01 | 0.70 | 0.80 | 0.025 | 0.010 | 0.30 |
|
CR210
|
0.08 | 0.70 | 0.80 | 0.030 | 0.015 | 0.50 |
|
CR210IF
|
0.01 | 0.90 | 0.80 | 0.025 | 0.010 | 0.30 |
|
CR240
|
0.10 | 1.00 | 0.10 | 0.030 | 0.015 | 0.50 |
|
CR240IF
|
0.01 | 1.60 | 0.10 | 0.025 | 0.010 | 0.30 |
|
CR270
|
0.12 | 1.50 | 0.11 | 0.030 | 0.015 | 0.50 |
|
CR300
|
0.12 | 1.50 | 0.12 | 0.030 | 0.015 | 0.50 |
Note 1: Chemical composition based on product (coil or sheet/blank) analysis.
Note 2: In addition to requirements shown in Table 1, %Cu+%Ni+%Cr+%Mo ≤ 0.5
Note 3: %C + %P ≤ 0.16
Note 4: Includes IF, P, B0 and B2 grades
Note 5: All P and IF grades with C% <0.015 must have a minimum of 0.0003% (3 ppm) Boron. See Appendix for Deviations.
Note 6: min = minimum
|
GMW3032M-ST-S Designation
|
C
% Max |
Mn
% Max |
P
% Max |
S
% Max |
AL
% Min |
Si
% Max |
|
240LA
|
0.10
|
0.70
|
0.03
|
0.03
|
0.015
|
0.5
|
|
270LA
|
0.12
|
1.00
|
0.03
|
0.03
|
0.015
|
0.5
|
|
300LA
|
0.12
|
1.30
|
0.03
|
0.03
|
0.015
|
0.5
|
|
340LA
|
0.12
|
1.50
|
0.03
|
0.03
|
0.015
|
0.5
|
|
380LA
|
0.12
|
1.50
|
0.03
|
0.03
|
0.015
|
0.6
|
|
420LA
|
0.12
|
1.60
|
0.03
|
0.03
|
0.015
|
0.6
|
|
500LA
|
0.12
|
1.70
|
0.03
|
0.03
|
0.015
|
0.6
|
| 550LA | 0.15 | 1.80 | 0.03 | 0.03 | 0.015 | 0.6 |
| 650LA | 0.12 | 2.00 | 0.025 | 0.15 | 0.015 | 0.6 |
| 700LA | 0.12 | 2.10 | 0.025 | 0.15 | 0.015 | 0.6 |
Note 1:
Chemical composition based on product (coil or sheet/blank) analysis.
Note 2:
High strength low alloy grades must contain intentional additions of microalloying elements (i.e., niobium, titanium, and/or vanadium) and/or must have a carbon equivalence, CE ≤ 0.24. CE = %C + (%Si/30) + (%Mn/20) + 2(%P) + 4(%S).
Note 3:
The amount of microalloying elements (niobium, titanium, vanadium) together shall be ≤ 0.22%.
|
GMW3032M-ST-S
|
Yield
Strength Note3 |
Tensile trength
(MPa) |
Total
Elong.in 50mm |
Total Elong. in
80mm Note 4,Note 5 |
Total Elong.
Note 4 In 50mm (JIS #5) Note 4 |
rm (r bar)
Note 5,Note 6,Note 7 |
value Note 5
Valid only for GME |
n value Note 5
|
BH0 Note 8, Note 9
(MPa) |
BH2 Note 9
(MPa) |
|
|
Designation
|
Min Note10
|
Max
|
Min Note10
|
Min Note10
|
Min Note10
|
Min Note10
|
Min Note10
|
Min Note10
|
Min Note10
|
Min Note10
|
Min Note10
|
|
CR180P
|
180
|
240
|
300
|
35 | 33 | 39 |
1.3
|
- |
0.2
|
- | - |
|
CR180FI
|
180
|
240
|
330
|
38 | 36 | 42 |
1.3
|
0.19
|
0.2
|
- | - |
|
CR180B2
|
180
|
240
|
300
|
35 | 33 | 39 |
1.3
|
0.16
|
0.19
|
- |
30
|
|
CR180B0
|
180
|
240
|
300
|
35 | 33 | 39 |
1.3
|
0.16
|
0.17
|
30
|
30
|
|
CR210P
|
210
|
270
|
320
|
33 | 31 | 37 |
1.3
|
0.16
|
0.19
|
- | - |
|
CR210IF
|
210
|
270
|
340
|
36 | 34 | 40 |
1.3
|
0.18
|
0.19
|
- | - |
|
CR210B2
|
210
|
270
|
320
|
33 | 31 | 37 |
1.1
|
0.15
|
0.17
|
- |
30
|
|
CR210B0
|
210
|
270
|
320
|
33 | 31 | 37 |
1.1
|
0.15
|
0.16
|
30
|
30
|
|
CR240P
|
240
|
300
|
340 | 30 | 28 | 34 |
1.1
|
0.15
|
- | - | - |
|
CR240IF
|
240
|
300
|
360 | 34 | 32 | 38 |
1.1
|
0.17
|
0.17
|
- | - |
|
CR240B2
|
240
|
300
|
340
|
30 | 28 | 34 |
1.1
|
0.14
|
0.17
|
- |
30
|
| CR240B0 | 240 | 300 | 340 | 30 | 28 | 34 | 1.1 | 0.14 | 0.16 | 30 | 30 |
| CR270P | 270 | 330 |
360
|
28 | 26 | 32 | 1 | 0.14 | - | - | - |
| CR270B2 | 270 | 330 | 360 | 28 | 26 | 32 | 0.9 | 0.13 | 0.15 | - | 30 |
| CR270B0 | 270 | 330 | 360 | 28 | 26 | 32 | 1 | 0.13 | 0.15 | 30 | 30 |
| CR300B2 | 300 | 360 | 390 | 26 | 24 | 30 | 0.9 | - | 0.14 | - | 30 |
| CR300B0 | 300 | 360 | 390 | 26 | 24 | 30 | 0.9 | - | 0.14 | 30 | 30 |
Note 1:
Additional demands can be specified by local units.
Note 2:
Parameters valid in the longitudinal test direction.
Note 3:
The yield stress values shall apply for the 0.2 proof stress, Rp 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL.
Note 4:
When the specified nominal thickness is less than 0.7 mm and greater than 0.5 mm, the minimum value for elongation is reduced by 2 units. For thickness less than or equal to 0.5 mm, the minimum value is reduced by 4 units.
Note 5:
ZnNi and Galvanneal coated steels: rm (r-bar) shall be reduced by 0.1; n value to be reduced by 0.01; total elongation to be reduced by 2%.
Note 6:
For thickness above 1.6 mm, the minimum r-value requirement will be 1.0.
Note 7:
Calculation by (r0+r90+2r45)/4.
Note 8:
The BH0 grades are to be used for outer panels only, and the BH0 requirement of 30 MPa is valid for sheet metal thickness’below 1.0 mm.
Note 9:
The BH0/2 index requirement in this specification is used to characterize the general bake hardening response of steel. For vehicle design, the actual processing conditions (temperature cycle, pre-straining, etc.) must be considered.
Note 10:
Min = Minimum.
| GMW3032M-ST-S | Yield StrengthNote 3 |
Tensile
Strength (MPa) |
TotalElong. in
50mm |
TotalElong. in
80mm |
TotalElong. in 50 mm
(JIS Z 2201 Number 5) |
n-valueNote5 | |
| Designation | Min Note6 | Max |
Min Note6
|
% Min Note6 | % Min Note6 | % Min Note6 | % Min Note6 |
|
CR240LA
|
240
|
320 | 320 | 28 | 26 | 32 |
0.15
|
|
CR270LA
|
270 | 350 | 330 | 26 | 24 | 30 |
0.15
|
|
CR300LA
|
300 | 380 | 370 | 24 | 22 | 28 |
0.14
|
|
CR340LA
|
340 | 420 | 410 | 22 | 20 | 26 |
0.13
|
| CR380LA | 380 | 460 | 450 | 20 | 18 | 24 | 0.12 |
| CR420LA | 420 | 520 | 480 | 18 | 16 | 22 | 0.11 Note4 |
| CR500LA | 500 | 600 | 560 | 16 | 14 | 20 | 0.09 Note4 |
Note 1: Additional demands can be specified by local units.
Note 2: Parameters valid in the longitudinal test directions.
Note 3: The yield stress values shall apply for the 0.2 proof stress, Rp 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL.
Note 4: n-value tested from 6% to end of uniform elongation.
Note 5: ZnNi and Galvanneal coated steels: n value to be reduced by 0.01.
Note 6: Min = Minimum.
|
GMW3032M-ST-S
|
Yield StrengthNote 3,Note 4
|
Tensile
StrengthNote3 (MPa) |
Total
Elong. in 50mmNote2 |
Total
Elong. in 80mmNote3 |
Total
Elong. in 50 mm (JIS #5) |
n-valueNote5
|
|
|
Designation
|
Min Note6
|
Max
|
Min Note6
|
% Min Note6
|
% Min Note6
|
% Min Note6
|
% Min Note6
|
|
HR240LA
|
240
|
320 | 590 | 31 | 29 | 35 |
0.16
|
|
HR270LA
|
270 | 3540 | 330 | 29 | 27 | 33 |
0.15
|
|
HR300LA
|
300 | 380 | 370 | 27 | 25 | 31 |
0.14
|
|
HR340LA
|
340 | 420 | 410 | 25 | 23 | 29 |
0.13
|
|
HR380LA
|
380 | 460 | 450 | 23 | 21 | 27 |
0.12
|
|
HR420LA
|
420 | 420 | 480 | 22 | 20 | 26 |
0.11 Note7
|
|
HR500LA
|
500 | 600 | 560 | 20 | 18 | 24 |
0.09 Note7
|
| HR550LANote8 | 550 | 650 | 610 | 18 | 16 | 22 | 0.08 Note7 |
| HR650LANote8 | 650 | 780 | 700 | 14 | 12 | 20 | 0.07 Note7 |
| HR700LANote8 | 700 | 850 | 750 | 12 | 10 | 18 | 0.06 Note7 |
Note 1: Additional demands can be specified by local units.
Note 2: Parameters valid in the longitudinal test direction.
Note 3: The values stated apply to product thicknesses from 2 to 8 mm in the as-delivered condition. Higher or lower values of thickness and other as delivered conditions may be agreed at the time of ordering.
Note 4: The yield stress values shall apply for the 0.2 proof stress, Rp 0.2, if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL.
Note 5: Galvanneal coated steels shall be reduced by 0.01.
Note 6: Min = Minimum.
Note 7: n-value tested from 6% to end of uniform elongation.
Note 8: For hot-dipped zinc coated HR grades with YS ≥ 550 MPa, the minimum total elongation shall be reduced by 3%. See deviations section.