GMW3399
GM WORLDWIDE ENGINEERING STANDARDS
GMW3399M-ST-S CR490T/290Y DP EG60G60G U
9 Release and Revisions
Where:
9.1 Release. This standard originated in January 2000. It was approved by GM-North America and the involved GMAO partners in February, 2003. It was first published in February 2003.
GMW
=
Validation Area (GM Worldwide)
3399
=
Sequential Number
GMW3399
=
Material Type specification
M
=
Material Type: Metals
ST
=
Category: Steel
S
=
SubCategory: Sheet
490T
=
Minimum Tensile Strength (MPa)
290Y
=
Minimum Yield Strength (MPa)
DP
=
Steel Type (DP,FB,TR,MP,MS)
EG60G60G
=
Coating Designation GMW11M for details)
U
=
Surface 3.1.3.2.2
(Base
Quality
material
9.2 Revision s. Rev
Approval Date
Descrip tion (Organization)
A
APR 2006
This first revision is a reformation from its original release. It states requirements for new steel grades as well as modifications to existing steel grade requirements to accommodate global supply and product development.
(see
(paragraph
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GM WORLDWIDE ENGINEERING STANDARDS
GMW3399
Table 1: General Chemical Compositions
1,2
GMW3399M-ST-S
C
Mn
Al
Si
P
S
Cu
Grade Type
Max %
Max %
Min %
Max %
Max %
Max %
Max %
3
B Max %
5
DP
0.23
3.3
0.010
2.0
0.090
0.015
0.20
0.006
TR
0.30
2.5
0.010
2.2
0.090
0.015
0.20
N/A
MS
4
0.30
3.0
0.010
2.2
0.020
0.025
0.20
N/A
MP
0.25
2.2
0.010
2.0
0.050
0.015
0.20
N/A
FB
0.18
2.0
0.010
0.5
0.040
0.010
---
---
NOTE 1: Chemical composition based on mass % product (ladle, coil or sheet/blank) analysis. NOTE 2: In addition to requirements shown in the table, %Ni+%Cr+%Mo < 1.5 NOTE 3: All DP grades with C% <0.015 must have a minimum of 0.0003% (3 ppm) Boron. NOTE 4: MS grades that have critical spot welding requirements may be restricted to S < 0.010 NOTE 5: Maximum %Cu for hot rolled DP steel is 0.40%.
Table 2: Grade Specific Chemical Compositions GMW3399M-ST-S
C
Mn
Si
P
S
Cu
B
Max %
Max %
Max %
Max %
Max %
Max %
Max %
CR DP450, 500, 600
0.15
2.5
0.010
0.6
0.040
0.015
0.20
0.005
CR DP700, 800
0.18
2.5
0.010
0.6
0.040
0.015
0.20
0.005
CR DP1000
0.23
2.5
0.010
0.6
7
0.040
0.015
0.20
0.005
CR TRIP700
0.28
2.0
0.015-2.00
2.0
0.090
0.015
0.20
0.006
CR TRIP800
0.30
2.5
0.015-2.00
2.2
0.090
0.015
0.20
0.006
4,5,6
Common Name
Al
1,2,3
Min %
NOTE 1: Chemical composition based on mass % product (ladle, coil or sheet/blank) analysis. NOTE 2: In addition to requirements shown in the table, %Ni+%Cr+%Mo < 1.5 NOTE 3: Chemistry requirements include high and low-yield DP grades defined in Table 6. NOTE 4: All DP grades with C% <0.015 must have a minimum of 0.0003% (3 ppm) Boron. NOTE 5: If %Al > 1.00 for CR700TR or 1.20 for CR800TR, then Si 0.5, then %Al must be <0.5%. NOTE 6: Common names contained in this table are not to be used on drawings and/or electronic math data files. See Tables 5, 6, and 7. NOTE 7: DP1000 High Yield may contain 1.3% max Si. This material is not to be welded without consultation with the proper weld group(s).
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April 2006
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GMW3399
GM WORLDWIDE ENGINEERING STANDARDS Table 3: Dual Phase Hot Rolled Grades Mechanical Propert y Requirements
GMW3399-M-ST-S
Yield 2,3 Strength
Tensile
Total
Strength
Elong.
Elong.
@ 0.2%
(MPa)
in
in
50 mm
80 mm (ISO II)
Offset
Total
(MPa)
Designation
Common 6 Name
Min.
Max.
Min.
ISO I
HR580T/330Y DP
HR DP600
330
450
580
21
HR780T/450Y DP
HR DP800
450
610
780
15
JIS
n value @
1
n-value @ 3 4-6%
3, 4, 5
10-20%
BH 2
MPa
% Min.
Min.
Min.
Min.
22
19
0.14
0.18
30
16
14
0.11
0.16
30
NOTE 1: Additional demands can be specified by local units. NOTE 2: The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL. NOTE 3: Minimum yield strength and/or minimum n-values can be waived upon agreement between user and supplier. NOTE 4: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. NOTE 5: If maximum uniform elongation is less than 10%, then n-value shall be measured from 5% to maximum uniform elongation. NOTE 6: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files.
Table 4: Ferrit e + Bainite Hot Roll ed Grades (Dual Phase With High Hole Expansion) 1 Mechanical Property Requirements GMW3399-M-ST-S
Yield Streng th
2,3
Tensile
Total
Total
@ 0.2%
Strength
Elong.
Elong.
Offset
(MPa)
in
in
50 mm
80 mm (ISO II)
(MPa)
Designation
Common 6 Name
Min.
Max.
Min.
ISO I
HR450T/300Y FB
HR FB450
300
380
450
26
HR580T/440Y FB
HR FB600
440
620
580
HR780T/600Y FB
HR FB800
600
800
780
JIS
n value @ 3, 4, 5
10-20%
Minimum Hole Expansion (%)
% Min.
Min.
28
24
__
15
17
14
0.08
75
13
15
12
0.07
55
7
Min. 7
__
Note 1: Additional demands can be specified by local units. Note 2: The yield stress values shall apply for the 0.2 proof stress, R p 0.2, if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL. Note 3: Minimum yield strength and/or minimum n-value can be waived upon agreement between user and supplier. Note 4: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. Note 5: If maximum uniform elongation is less than 10%, then n-value shall be measured from 5% to maximum uniform elongation. Note 6: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 7: Requirement based on processing capability yet to be determined.
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April 2006
` , , ` , ` , , ` , , ` ` ` , ` ` , ` , ` , , , , , ` , ` , , , , ` ` , , , ` , ` -
GM WORLDWIDE ENGINEERING STANDARDS
GMW3399
Table 5: Dual Phase Cold Rolled Grades Mechanical Propert y Requirements GMW3399-M-ST-S
Yield Streng th @ 0.2% Offset (MPa)
2,3
Tensile Strength (MPa)
Total 4 Elong. in 50 mm % Min.
1
Total 4 Elong. in 80 mm (ISO II)
n value @ 3,5,6 10-20%
n-value @ 2,3 4-6%
BH 2 MPa
JIS
% Min.
Min.
Min.
Min.
Designation
Common 7 Name
Min.
Max.
Min.
ISO I
CR450T/250Y DP CR490T/290Y DP CR590T/340 Y DP CR780T/ 420Y DP CR980T/ 550Y DP
CR DP450
250
320
450
__
8
30
27
0.16
__
30
CR DP500
290
390
490
25
27
24
0.15
0.19
30
CR DP600
340
440
590
21
22
21
0.14
0.18
30
CR DP800
420
550
780
14
17
15
0.11
0.15
30
CR DP1000
550
730
980
8
10
10
N/A
0.08
8
30
Note: 1 Local units can specify additional demands. Note 2: 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 3: Minimum yield strength and/or minimum n-values can be waived upon agreement between user and supplier Note 4: When the specified nominal thickness is less than 0.7 mm and greater than 0.5 mm the minimum value for elongation shall be reduced by 2 units. For thickness less than or equal to 0.5 mm the minimum value shall be reduced by 4 units. Note 5: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. Note 6: If maximum uniform elongation is less than 10%, then n-value shall be measured from 5% to maximum uniform elongation. Note 7: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 8: Requirement based on processing capability yet to be determined.
Table 6: High & Low Yield Dual Phase Cold Rolled Grades 1 Mechanical Property Requirements GMW3399-MST-S
Yield Strength @ 0.2% Offset (MPa)
2,3
Tensile Strength (MPa)
Total 4 Elong. in 50 mm % Min.
` , , ` , ` , , ` , , ` ` ` , ` ` , ` , ` , , , , , ` , ` , , , , ` ` , , , ` , ` -
Total 4 Elong. in 80 mm (ISO II)
n value @ 3,5,6 10-20%
n-value @ 2,3 4-6%
BH 2 MPa
Designation
Common 7 Name
Min.
Max.
Min.
ISO I
JIS
% Min.
Min.
Min.
Min.
CR590T/280Y DP CR590T/420Y DP CR690T/550Y DP CR780T/500Y DP CR980T/650Y DP
DP600 Low Yield DP600 High Yield DP700 High Yield CR DP800 High Yield CR DP1000 High Yield
280
380
590
21
23
22
0.14
0.19
30
420
500
590
20
19
16
0.08
__
30
550
660
690
13
15
12
0.06
0.08
30
500
650
780
15
17
10
0.06
0.10
30
650
900
980
8
10
8
N/A
N/A
30
8
Note 1: Local units can specify additional demands. Note 2: The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL. Note 3: Minimum yield strength and/or minimum n-values can be waived upon agreement between user and supplier Note 4: When the specified nominal thickness is less than 0.7 mm and greater than 0.5 mm the minimum value for elongation shall be reduced by 2 units. For thickness less than or equal to 0.5 mm the minimum value shall be reduced by 4 units. Note 5: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. Note 6: If maximum uniform elongation is less than 10%, then n-value shall be measured from 5% to maximum uniform elongation. Note 7: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 8: Requirement based on processing capability yet to be determined.
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April 2006
Page 9 of 14
GMW3399
GM WORLDWIDE ENGINEERING STANDARDS
Table 7: Transformation Induced Plasticity (Trip) Cold Roll Grades Mechanical Property Requirements 1
` , ` , , , ` ` , , , , ` , ` , , , , , ` , ` , ` ` , ` ` ` , , ` , , ` , ` , , ` -
GMW3399-M-ST-S
Yield Streng th
2,3
Tensile
Total
Total 4
@ 0.2%
Strength
Elong.
Elong.
Offset
(MPa)
in
In
50 mm
80 mm (ISO II)
(MPa)
% Min.
Designation
Common 6 Name
Min.
Max.
Min.
CR590T/380Y TR
CR TRIP600
380
480
590
CR690T/410Y TR
CR TRIP700
410
530
690
CR780T/440Y TR
CR TRIP800
440
600
780
ISO I
n value @
BH 2
4,5
MPa
4
10-20%
JIS
% Min.
Min.
Min.
27
29
26
0.20
30
__
7
27
24
0.19
30
21
23
20
0.15
30
Note 1:
Local units can specify additional demands.
Note 2:
The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL.
Note 3: Minimum yield strength and/or minimum n-values can be waived upon agreement between user and supplier. Note 4:
When the specified nominal thickness is less than 0.7 mm and greater than 0.5 mm the minimum value for elongation shall be reduced by 2 units. For thickness less than or equal to 0.5 mm the minimum value shall be reduced by 4 units.
Note 5: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. Note 6: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 7: Requirement based on processing capability yet to be determined.
Table 8: Martensiti c Cold Rol led Grades Mechanical Property Requirements GMW-3399-M-STS
Yield Streng th
2,3,4
Tensile
@ 0.2% Offset
Strength
(MPa)
(MPa)
1
Total
Total 2
Elong. in
Elong. in 50 mm
Minimum Bend Radius
2
2
80 mm (ISO II)
% Min
Designation
Common 5 Name
Min.
Max.
Min.
ISO I
JIS
% Min.
Long.
Trans.
CR900T/700Y MS
CR MS 900
700
1000
900
3
6
CR1100T/860Y MS
CR MS 1100
860
1100
1100
3
6
4T
4T
6
5
4T
4T
6
3
4T
4T
6
2
4T
4T
__
CR1300T/1030Y MS
CR MS 1300
1030
1300
1300
2
__
CR1500T/1200Y MS
CR MS 1500
1200
1500
1500
2
__
Note 1: Local units can specify additional demands. Note 2: Parameters valid in the longitudinal test direction. Note 3: The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL. Note 4: Minimum yield strength can be waived upon agreement between user and supplier. Note 5: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 6: Requirement based on processing capability yet to be determined.
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April 2006
GM WORLDWIDE ENGINEERING STANDARDS
GMW3399
Table 9: Martensit ic Hot Rolled Grades Mechanic al Propert y Requir ements GMW-3399-M-STS
Yield Streng th
2,3,4
Tensile
@ 0.2% Offs et
Strength
(MPa)
(MPa)
Total
Total 2
in 50 mm
2
80 mm (ISO II)
2
% Min
Designation
Common 5 Name
Min.
Max.
Min.
ISO I
HR1200T/1030Y MS
HR MS 1200
1030
1150
1200
__
HR1400T/1050Y MS
HR MS 1400
1050
1250
1400
__
Minimum Bend Radius
Elong. in
Elong.
1
% Min.
Long.
Trans.
6
5
4T
4T
6
4
4T
4T
JIS
6
__
6
__
Note 1: Local units can specify additional demands. Note 2: Parameters valid in the longitudinal test direction. Note 3: The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL. Note 4: Minimum yield strength can be waived upon agreement between user and supplier. Note 5: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 6: Requirement based on processing capability yet to be determined.
Table 10: Hot Roll Multiphase Grades Mechanical Property Requirements GMW3399-M-ST-S
Yield Streng th
2,3
Tensile
Total
Total
n value @
BH 2
3,4,5
10-20%
MPa
% Min.
Min.
Min.
7
10
__
7
9
__
@ 0.2%
Strength
Elong.
Elong.
Offset
(MPa)
in
In
(MPa)
50 mm
80 mm
% Min.
(ISO II)
Designation
Common 6 Name
Min.
Max.
Min.
ISO I
HR780T/650Y MP
HR MP 800
650
800
780
__
HR950T/720Y MP
HR MP 1000
720
920
950
__
1
JIS
7
__
7
__
7
30
7
30
Note 1:
Local units can specify additional demands.
Note 2:
The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL.
Note 3: Minimum yield strength and/or minimum n-value can be waived upon agreement between user and supplier Note 4: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. Note 5: If maximum uniform elongation is less than 10%, then n-value shall be measured from 5% to maximum uniform elongation. Note 6: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 7: Requirement based on processing capability yet to be determined.
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GMW3399
GM WORLDWIDE ENGINEERING STANDARDS
Ap pen di x A - Devi ati on Sheet. Deviations on requirements for local business units. A3.1 Requ ir ement s o n Delivery .
Industrial Standard JIS Z 2201 (No. 5 test piece), respectively. GM-Europe: All specified values must be met in the longitudinal (L) direction. A3.1.3.2 Sur fac e Requi rements.
A3.1.1 Chem ic al Requirements.
A3.1.3.2.1 Sur face Textur e.
GMNA and GM-Europe: Only c oil or s heet/blank analysis is permitt ed.
GMNA: Refer to GM6180M.
A3.1.1.1 Bas e Metal.
GM-Europe: Refer to EN10 049 GMAO-Latin America: Refer to EMS.ME.1508.
GMAO-Latin America: Refer to EMS.ME.1508. GMAO-Asia Pacific: Steel products shall have chemical composition that is agreed between purchaser and supplier that is capable of achieving the desired mechanical properties specified in GMW3399. A3.1.1.2 Sur face Treatment . GMNA: Products coated with a designated lubricant (i.e., mill oil or prelube) shall comply with GM North America specification 9984001. GM Europe: Products coated with a designated lubricant (e.g. mill oil or prelube) shall comply with specifications B0401270/B0401271 (oil) respective with GME 8689.
GMAO-Asia Pacific: To satisfy Holden exterior topcoat systems HN 1623, HN 1643 and HN 1673 requirements, the surface texture of materials used for highly visible exterior surface of the vehicle must not decrease the distinction of image (DOI) or gloss of the applied paint. For Isuzu applications, Refer to sub-clause 6 of JFS A 1001. Surface texture for all cold rolled exposed surfaces shall be tested to JIS B 0651 and conform to JIS B 0610. Surface finish may be supplied as bright (B), normal (C), or rough (D). In general, cold rolled products shall be supplied with normal(C) finish. A3.1.3.2.2 Sur face Quali ty .
GM Latin America Products coated with a designated lubricant (e.g. mill oil or prelube) shall comply with specification EMS.9310015 and EMS.ME.1508.
GM Europe – The semi-exposed (Z) surface is not to be specified. Exposed (E) and unexposed (U) cold rolled and coated products are to be temper rolled.
GMAO-Asia Pacific: Mill oils, shipping oils, press oils, etc., applied to the material by the steel mill and the parts manufacturer must be removable in the purchaser’s phosphate precleaner system. The material must be capable of achieving an even phosphate coating in the purchaser’s phosphate system. The phosphate coating weight and crystal morphology must be as expected for that type of sheet metal material. For Isuzu, refer to sub-clause 6 of JFS A 1001.
GMAO-Latin America: Refer to EMS.ME.1508.
A3.1.2 Mech anical Requir ement s. GMNA: 4-6% n-value testing not required. All specified values must be met in the longitudinal (L) direction. GMAO-Europe and GMAO-Latin America: ` , ` , , , ` ` , , , , ` , ` , , , , , ` , ` , ` ` , ` ` ` , , ` , , ` , ` , , ` -
The Yield Strength (0.2% Offset) requirement for DP500 shall be 370 MPa max., and for DP600 shall be 410 MPa max. Designation of carry over parts to be used on global platform vehicles must be changed into the new GMW Material Description System. GMAO-Asia Pacific: Australian and Japanese Steel Suppliers for Holden shall perform tensile testing to Australian Standard AS 1391, and to Japanese
GMAO-Asia Pacific: All products shall be free from stretcher strains for six (6) months unless otherwise agreed upon between purchaser and supplier . Surface finish and quality should be negotiated between the steel mills and parts manufacturer to be appropriate to the final use of the part. In all cases the supplied steel and the parts made from that steel shall be clean and free of scale, stains, corrosion, debris or any other defects which would be objectionable on the finished part. A3.1.3.3.1 Inc lu si ons GMAO-Asia Pacific (Isuzu) - Inclusions refer to sub-clause 14.2 of JFS A 1001. A3.1.3.3.2 Grain Size. GMAO-Asia Pacific (Isuzu) - Grain size is not designated for any material. A3.2 Proc essing Requi rements. GMAO-Latin America: Cold Bending for Part Design Purpose. Ultra high strength steels are frequently fabricated for cold bending. Many interrelated factors affect the ability of given piece of steel to form over any given radius in shop practice. These factors include thickness, strength
© Copyright 2006 General Motors Corporation All Rights Reserved
Page 12 of 14
April 2006
` , ` , , , ` ` , , , , ` , ` , , , , , ` , ` , ` ` , ` ` ` , , ` , , ` , ` , , ` -
GM WORLDWIDE ENGINEERING STANDARDS level, degree of restraint in bending, relationship to rolling direction, chemical composition and microstructure.
GMW3399
GMNA – Further information can be found in the GMNA sheet steel qualification standard (GM9769P) or from GPSC (Global Purchasing and Supply Chain).
A5.4 – Ins pecti on and Rejecti on.
o
170 C/20 m inutes
BH2 Stress WH
WH = Work hardening
2% Pre-Strain
Strain
Figure A1: Definition of Bake Hardening and Work Hardening Indexes Figure A1 illustrates the definition of the Bake Hardening index (BH2) on schematic diagrams of stress-strain curves. The bake-hardening index for bake hardenable steels shall be determined on specimens that 2% o prestrained and baked at 170 C for 20 minutes.
A6. Ap pr ov ed So ur ces . GMAO-North America: Purchased parts not in the GM Resale program shall meet specification requirements, however, they are not required to be approved suppliers in the GM Corporate Materials File (Matspc).
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April 2006
Page 13 of 14
GMW3399
GM WORLDWIDE ENGINEERING STANDARDS
Ap pendi x B : Develop men tal Grad es. The following grades are currently being developed by steel mills as directed in various regions to meet specific end-product and/or manufacturing requirements. Further development of these grades and subsequent specification revisions are necessary prior to removal of these grades from Appendix B and placement into the main document. The following table does not imply all grades referenced in the main document are globally available. Table B1: Developm ental Grades GMW3399-M-STS
Yield 2,3 Strength
Tensile
Total
Total
Strength
Elong.
Elong.
@ 0.2%
(MPa)
4
in
in
Offset
50 mm
(MPa)
% Min.
80 mm (ISO II)
Designation
Common 6 Name
Min.
Max.
Min.
CR780T/500Y MS
CR MS 800
500
700
780
10
CR980T/700Y MS
CR MS 1000
700
960
980
6
CR1180T/820Y MS
CR MS 1200
820
1130
1180
HR490T/xxxY DP
HR DP500
__
HR980T/xxxY FB
HR FB1000
HR590T/400Y TR
7
__
__
7
__
HR TRIP600
400
__
HR690T/xxxY TR
HR TRIP700
__
7
__
HR780T/450Y TR
HR TRIP800
450
__
` , ` , , , ` ` , , , , ` , ` , , , , , ` , ` , ` ` , ` ` ` , , ` , , ` , ` , , ` -
n value @ 4
7
490
7
980
7
590
7
690
7
780
ISO I
2
JIS
4
% Min.
3,5
10-20%
Min.
n-value 2,3 (4-6%)
BH 2 MPa
Min.
Min.
3
Note 1: Local units can specify additional demands. Note 2: The yield stress values shall apply for the 0.2 proof stress, R p 0.2 , if the yield stress cannot be easily recognized, otherwise the values shall be the lower yield stress, ReL. Note 3: Minimum yield strength and/or minimum n-values can be waived upon agreement between user and supplier Note 4: When the specified nominal thickness is less than 0.7 mm and greater than 0.5 mm the minimum value for elongation shall be reduced by 2 units. For thickness less than or equal to 0.5 mm the minimum value shall be reduced by 4 units. Note 5: If maximum uniform elongation is less than 20%, then n-value shall be measured from 10% to maximum uniform elongation. Note 6: Common names are provided for informational purposes, and are NOT to be used on drawings or electronic math data files. Note 7: Requirement based on processing capability yet to be determined.
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Page 14 of 14
April 2006
