Symbol of grade
Symbol of grade | Application |
---|---|
SPCC | Commercial quality |
SPCD | Drawing quality |
SPCE | Deep drawing quality |
SPCF | Non-ageing deep drawing quality |
Temper grade | Symbol of temper grade | |||
---|---|---|---|---|
As-annealed | A | |||
Standard temper grade | S | |||
⅛ hard | 8 | |||
¼ hard | 4 | |||
½ hard | 2 | |||
Full hard | 1 | |||
⅛ hard, ¼ hard, ½ hard and full hard are only applicable to SPCC. |
Surface finish | Symbol of surface finish | Remarks | ||
---|---|---|---|---|
Dull finish | D | A matt finish produced with a roll of which the surface is roughened mechanically or chemically. | ||
Bright finish | B | A smooth finish produced with a roll of which the surface is finished smoothly. | ||
This table is not applicable to the steel sheet and strip as annealed. |
Symbol of grade | C | Mn | P | S |
---|---|---|---|---|
SPCC | 0.15 max. | 0.60 max. | 0.050 max. | 0.035 max. |
SPCD | 0.10 max. | 0.50 max. | 0.040 max. | 0.035 max. |
SPCE | 0.08 max. | 0.45 max. | 0.030 max. | 0.030 max. |
SPCF | 0.06 max. | 0.45 max. | 0.030 max. | 0.030 max. |
Alloying elements other than those in this table may be added as
necessary. Note: a) The upper limit value if Mn, P or S may be altered upon the agreement between the purchaser and the manufacturer. |
Remarks:
a) Where the non-aging is guaranteed by the order of purchaser for SPCE sheet or strip
normally refined or as it is annealed, its symbol for
classification shall be SPCEN, which has a suffix N at the
end.
Tensile strength, Elongation and Non-aging Property.
Symbol of grade | Tensile strength (N/mm2) | Elongation % a) | Tensile test piece | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Thickness mm b) | ||||||||||
0.20 or over to and excl. 0.25 | 0.25 or over to and excl. 0.30 | 0.30 or over to and excl. 0.40 | 0.40 or over to and excl. 0.60 | 0.60 or over to and excl. 1.0 | 1.0 or over to and excl. 1.6 | 1.6 or over to and excl. 2.5 | 2.5 or over | |||
SPCC c) | Not specified | No. 5 test piece, rolling direction | ||||||||
SPCD | 270 min | 27 min | 30 min | 33 min | 36 min | 38 min | 39 min | 40 min | 41 min | |
SPCE | 270 min | 29 min | 32 min | 35 min | 38 min | 40 min | 41 min | 42 min | 43 min | |
SPCF | 270 min | - | - | - | 40 min | 42 min | 43 min | 44 min | 45 min |
Note: 1 N/mm² = 1 MPa
Remarks:
a) The elongation of the steel sheet and strip of standard temper grade
that have been bright finished shall be the value calculated by
subtracting 2 from the value in this table.
b) Applicable thickness shall be as given in Table of thickness tolerance.
c) Annex 1 is applicable upon agreement between the purchaser and the
manufacturer.
Symbol of grade | Tensile strength (N/mm2) | Elongation % | |||||||
---|---|---|---|---|---|---|---|---|---|
Thickness mm | |||||||||
0.20 or over to and excl. 0.25 | 0.25 or over to and excl. 0.30 | 0.30 or over to and excl. 0.40 | 0.40 or over to and excl. 0.60 | 0.60 or over to and excl. 1.0 | 1.0 or over to and excl. 1.6 | 1.6 or over to and excl. 2.5 | 2.5 or over | ||
SPCCT | 270 min | 25 min | 28 min | 31 min | 34 min | 36 min | 37 min | 38 min | 39 min |
Hardness and Bendability
Rockwell hardness of hard material (HRB)
Temper grade | Symbol of temper grade | HRBS or HRBW | ||
---|---|---|---|---|
JIS G3141 | MS 2651 | |||
⅛ hard | 8 | 50 to 71 | 50 - 71 | |
¼ hard | 4 | 65 to 80 | 60 – 80 | |
½ hard | 2 | 74 to 89 | 70 – 89 | |
Full hard | 1 | 85 or over | 84 min | |
Note a) The measurement shall be either by HRBS or HRBW. However in case of any doubt arising, HRBS shall be applied. |
A) Thickness Tolerance
i) Tolerances A on Thickness (JIS G 3141)
Thickness | Width | ||||
---|---|---|---|---|---|
Under 630 | 630 or over to and excl. 1000 | 1000 or over to and excl. 1250 | 1250 or over to and excl. 1600 | 1600 or over | |
Under 0.25 | ± 0.03 | ± 0.03 | ± 0.03 | - | - |
0.25 or over to and excl. 0.40 | ± 0.04 | ± 0.04 | ± 0.04 | - | - |
0.40 or over to and excl. 0.60 | ± 0.05 | ± 0.05 | ± 0.05 | ± 0.06 | - |
0.60 or over to and excl. 0.80 | ± 0.06 | ± 0.06 | ± 0.06 | ± 0.06 | ± 0.07 |
0.80 or over to and excl. 1.00 | ± 0.06 | ± 0.06 | ± 0.07 | ± 0.08 | ± 0.09 |
1.00 or over to and excl. 1.25 | ± 0.07 | ± 0.07 | ± 0.08 | ± 0.09 | ± 0.11 |
1.25 or over to and excl. 1.60 | ± 0.08 | ± 0.09 | ± 0.10 | ± 0.11 | ± 0.13 |
1.60 or over to and excl. 2.00 | ± 0.10 | ± 0.11 | ± 0.12 | ± 0.13 | ± 0.15 |
2.00 or over to and excl. 2.50 | ± 0.12 | ± 0.13 | ± 0.14 | ± 0.15 | ± 0.17 |
ii) Tolerances A on Thickness (MS 2651)
Thickness | Width | ||
---|---|---|---|
600 ≤ 1200 | 1200 < b ≤ 1500 | 1500 < b ≤ 1800 | |
Under or equal 0.4 | ± 0.03 | ± 0.05 | - |
0.4 < t ≤ 0.6 | ± 0.04 | ± 0.05 | ± 0.06 |
0.6 < t ≤ 0.8 | ± 0.05 | ± 0.05 | ± 0.07 |
0.8 < t ≤ 1.0 | ± 0.06 | ± 0.07 | ± 0.08 |
1.0 < t ≤ 1.2 | ± 0.07 | ± 0.08 | ± 0.10 |
1.2 < t ≤ 1.6 | ± 0.09 | ± 0.10 | ± 0.12 |
1.6 < t ≤ 2.0 | ± 0.11 | ± 0.12 | ± 0.14 |
2.0 < t ≤ 2.5 | ± 0.13 | ± 0.14 | ± 0.16 |
B) Width Tolerances
The width tolerances shall be as follows:
i) The width tolerances shall be applied to the nominal width.
Width Tolerances, Class A
Width | |
---|---|
Under 1250 | 1250 or over |
+7 | +10 |
0 | 0 |
C) Tolerances A on Flatness
Width | Type of strain | ||
---|---|---|---|
Bow, wave | Edge wave | Centre buckle | |
Under 1000 | 12 | 8 | 6 |
1000 or over to and excl. 1250 | 15 | 9 | 8 |
1250 or over to and excl. 1600 | 15 | 11 | 8 |
D) Camber Tolerances
Width | Division of steel sheet and steel strip | |||
---|---|---|---|---|
Steel sheet | Steel strip | |||
JIS G3141 | MS 2651 | Under 2000 in length | 2000 or over in length | |
30 or over to and excl. 40 | 30 or over to and excl. 40 | 8 | 8 in any 2000 in length | |
40 or over to and excl. 630 | 40 or over to and excl. 600 | 4 | 4 in any 2000 in length | |
630 or over | 600 or over | 2 | 2 in any 2000 in length |
1. Classification and symbol
Symbol of grade
Symbol of grade | Applicable thickness mm | Application |
---|---|---|
SPFC 340 | 0.6 or over up to and incl. 2.0 | Drawing use |
SPFC 370 | ||
SPFC 390 | Forming use | |
SPFC 440 |
2. Mechanical Properties
Tensile strength, Elongation and Non-aging Property.
Symbol of grade | Tensile strength (N/mm2) | Yield point or proof stress N/mm2 | Elongation % | Paint bake hardenability amount N/mm2 | Tensile test piece | |
---|---|---|---|---|---|---|
Thickness mm | ||||||
0.6 over to and excl. 1.0 mm | 1.0 or over to and excl. 2.3 mm | |||||
SPFC 340 | 340 or over | 175 or over | 34 or over | 35 or over | - | No. 5 test piece taken in transverse rolling direction |
SPFC 370 | 370 or over | 205 or over | 32 or over | 33 or over | - | |
SPFC 390 | 390 or over | 235 or over | 30 or over | 31 or over | - | |
SPFC 440 | 440 or over | 265 or over | 26 or over | 27 or over | - |
1. Classification and symbol
Symbol of grade
Symbol of grade | Application thickness | Type & Designation |
---|---|---|
JSC 270C | 0.30 to 1.40 | Mild Steel Sheet |
JSC 270D | 0.30 to 1.20 | |
JSC 270E | ||
JSC 340W | 0.40 to 1.60 | Commercial type steel sheet |
JSC 370W | ||
JSC 390W | ||
JSC 440W |
2. Mechanical Properties
Tensile strength, yield point or proof stress, elongation, amount of bake-hardening and mean plastic strain ratio.
Type and designation | Tensile strength N/mm2 | Yield point or proof stress N/mm2 | Elongation % | Amount of bake-harden-ing N/mm2 | Test piece | Hole expansibility | Mean plastic strain ratio | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thickness mm | Thickness mm | Hole expand ratio % | Test Piece | Thickness mm | ||||||||||||||||
0.3≤ 0.4> |
0.4≤ 0.8> |
0.8≤ 1.0> |
1.0≤ 3.2≥ |
0.3≤ 0.4> |
0.4≤ 0.6> |
0.6≤ 0.8> |
0.8≤ 1.0> |
1.0≤ 1.2> |
1.2≤ 1.6> |
1.6≤ 2.0> |
2.0≤ 2.5> |
0.5≤ 1.0≥ |
1.0≤ 1.6≥ |
|||||||
Mild steel sheet | JSC 270C | 270≤ | 155≤ 275≥ |
145≤ 265≥ |
135≤ 255≥ |
125≤ 245≥ |
36≤ 45≥ |
37≤ 46≥ |
38≤ 47≥ |
39≤ 48≥ |
40≤ 49≥ |
41≤ 50≥ |
42≤ 53≥ |
43≤ 55≥ |
- | JIS No.5 Rolling direc- tion | - | - | - | - |
JSC 270D | - | 135≤ 225≥ |
125≤ 215≥ |
115≤ 205≥ |
- | 40≤ 49≥ |
41≤ 50≥ |
42≤ 51≥ |
43≤ 52≥ |
44≤ 53≥ |
45≤ 55≥ |
46≤ 57≥ |
1.2≤ | 1.1≤ | ||||||
JSC 270E | 130≤ 205 ≥ |
120≤ 195 ≥ |
110≤ 185 ≥ |
42≤ 50≥ |
43≤ 51≥ |
44≤ 52≥ |
45≤ 53≥ |
46≤ 54≥ |
47≤ 56≥ |
48≤ 58≥ |
1.4≤ | 1.3≤ | ||||||||
Commercial type ratio type steel sheet | JCS 340W | 340≤ | - | 205≤ 305≥ |
195≤ 295≥ |
185≤ 285≥ |
- | 33≤ 43≥ |
34≤ 44≥ |
35≤ 45≥ |
36≤ 46≥ |
37≤ 47≥ |
38≤ | - | JIS No. 5 Perpen-dicular to rolling direc-tion | - | - | - | - | |
JCS 370W | 370≤ | 205≤ 305≥ |
195≤ 295≥ |
185≤ 285≥ |
30≤ 40≥ |
31≤ 41≥ |
32≤ 42≥ |
33≤ 43≥ |
34≤ 44≥ |
35≤ | ||||||||||
JCS 390W | 390≤ | 245≤ 355≥ |
235≤ 345≥ |
225≤ 335≥ |
29≤ 40≥ |
30≤ 41≥ |
31≤ 42≥ |
32≤ 43≥ |
33≤ 44≥ |
34≤ | ||||||||||
JCS 440W | 440≤ | 285≤ 390≥ |
275≤ 380≥ |
265≤ 370≥ |
26≤ 38≥ |
27≤ 39≥ |
28≤ 40≥ |
29≤ 41≥ |
30≤ 42≥ |
31≤ |
1. Classification and symbol
Symbol of grade
Symbol of grade | Application thickness mm | Application |
---|---|---|
SPHC | 1.80 or over up to and incl. 3.50 | For commercial |
SPHD | For processing | |
SPHE | ||
SPHF |
2. Chemical composition
Symbol of grade | C | Mn | P | S |
---|---|---|---|---|
SPHC | 0.12 max. | 0.60 max. | 0.045 max. | 0.035 max. |
SPHD | 0.10 max. | 0.45 max. | 0.035 max. | 0.035 max. |
SPHE | 0.08 max. | 0.40 max. | 0.030 max. | 0.030 max. |
SPHF | 0.08 max. | 0.35 max. | 0.025 max. | 0.025 max. |
3. Mechanical Properties
Tensile strength, Elongation and Non-aging Property.
Symbol of grade | Tensile strength b) (N/mm2) | Elongation % | Tensile test piece | ||||
---|---|---|---|---|---|---|---|
Thickness mm | |||||||
1.2 mm or over to and excl. 1.6 mm | 1.6 mm or over to and excl. 2.0 mm | 2.0 mm or over to and excl. 2.5 mm | 2.5 mm or over to and excl. 3.2 mm | 3.2 mm or over to and excl. 4.0 mm | |||
SPHC | 270 min. | 27 min | 29 min | 29 min | 29 min | 31 min | No. 5 in rolling direction |
SPHD | 270 min. | 27 min | 30 min | 32 min | 33 min | 35 min | |
SPHE | 270 min. | 27 min | 31 min | 33 min | 35 min | 37 min | |
SPHF | 270 min. | 37 min | 38 min | 39 min | 39 min | 40 min | |
Notes : a) The value specified in the table shall not be applied to the irregular portions of both ends of the steel strip b) The following tensile strength may be applied as the upper limit of tensile strength as agreed between the purchaser and the manufacturer. |
1. Classification and symbol
Symbol of grade
Symbol of grade | Application thickness mm |
---|---|
SAPH 310 | 1.80 or over up to and incl. 3.50 |
SAPH 370 | |
SAPH 400 | |
SAPH 440 |
2. Chemical composition
Symbol of grade | P | S |
---|---|---|
SAPH 310 | 0.040 or under | 0.040 or under |
SAPH 370 | ||
SAPH 400 | ||
SAPH 440 |
3. Mechanical Properties
Tensile strength, Elongation and Non-aging Property.
Symbol of grade | Tensile strength (N/mm2) | Yield point or proof stress N/mm2 | Elongation % | Tensile test piece | |||
---|---|---|---|---|---|---|---|
Thickness mm | Thickness mm | ||||||
Under 6.0 | 1.6 or over to and excl. 2.0 mm | 2.0 or over to and excl. 2.5 | 2.5 or over to and excl. 3.15 | 3.15 or over to and excl. 4.0 | |||
SAPH 310 | 310 min. | (185) min | 33 min | 34 min | 36 min | 38 min | No. 5 test piece taken in rolling direction |
SAPH 370 | 370 min. | 225 min | 32 min | 33 min | 35 min | 36 min | |
SAPH 400 | 400 min. | 255 min | 31 min | 32 min | 34 min | 35 min | |
SAPH 440 | 440 min. | 305 min | 29 min | 30 min | 32 min | 33 min |
1. Classification and symbol
Symbol of grade
Symbol of grade | Application thickness mm |
---|---|
SPHT 1 | 1.80 or over up to and incl. 3.50 |
SPHT 2 | |
SPHT 3 | |
SPHT 4 |
2. Chemical composition
Symbol of grade | C | Si | Mn | P | S |
---|---|---|---|---|---|
SPHT 1 | 0.10 max. | 0.35 max. | 0.50 max. | 0.040 | 0.040 |
SPHT 2 | 0.18 max. | 0.35 max. | 0.60 max. | 0.040 | 0.040 |
SPHT 3 | 0.25 max. | 0.35 max. | 0.30 to 0.90 | 0.040 | 0.040 |
SPHT 4 | 0.30 max. | 0.35 max. | 0.30 to 1.00 | 0.040 | 0.040 |
3. Mechanical Properties
Tensile strength, Elongation and Non-aging Property.
Symbol of grade | Tensile strength (N/mm2) | Elongation % | Tensile test piece | Bendability | |||||
---|---|---|---|---|---|---|---|---|---|
Thickness mm | Bendability angle | Inside radius | Test piece | ||||||
1.2 or over to and excl. 1.6 | 1.6 or over to and excl. 3.0 | 3.0 or over to and 6.0 | Thickness mm | ||||||
3.0 or under | Over 3.0 up to and incl. 13 | ||||||||
SPHT 1 | 270 min | 30 min | 32 min | 35 min | No. 5 taken in rolling direction | 180 ˚ | Flat on itself | Thickness x 0.5 | No. 3 taken in rolling direction |
SPHT 2 | 340 min | 25 min | 27 min | 30 min | Thickness x 1.0 | Thickness x 1.5 | |||
SPHT 3 | 410 min | (20 min) | 22 min | 25 min | Thickness x 1.5 | Thickness x 2.0 | |||
SPHT 4 | 490 min | (15 min) | 18 min | 20 min | Thickness x 1.5 | Thickness x 2.0 | |||
Mechanical properties shall not be applicable to the both ends of streel strip which is irregular portion. The values in parentheses are the referential values and may be applied under the agreement between the manufacturer and the purchaser. |
4. Permissible Variations in Dimensions and Shapes
A) Tolerances on Thickness for all Pickle and Oiled.
Thickness | Width | |
---|---|---|
Under 1200 | 1200 or over to and excl. 1500 | |
1.60 or over to and excl. 2.00 | ± 0.16 | ± 0.17 |
2.00 or over to and excl. 2.50 | ± 0.17 | ± 0.19 |
2.50 or over to and excl. 3.15 | ± 0.19 | ± 0.21 |
3.15 or over to and excl. 4.00 | ± 0.21 | ± 0.23 |
SPECIFICATION : JIS G 3141 (SPC) Cold-reduced carbon steel sheet and strip of commercial and drawing qualities | ||||
---|---|---|---|---|
Symbol Of Quality | Surface Finish | Thickness (mm) | Width (mm) | Application / User |
SPCC-A | - | 0.30 - 2.50 | 700 - 1250 | General Use |
SPCC-SD | Dull Finish | General Use, Furniture, Tubes, Cabinet, Drum, Automotive Parts, Electrical Parts |
||
SPCC-8D | Dull Finish | 0.30 - 2.00 | Electrical Parts, Electronic Parts, Computer Parts, Automotive Parts |
|
SPCC-8B | Bright Finish | |||
SPCC-4D | Dull Finish | |||
SPCC-4B | Bright Finish | |||
SPCC-2D | Dull Finish | |||
SPCC-2B | Bright Finish | |||
SPCC-1B | Bright Finish | 0.20 - 2.30 | Strapping / Bailing Hoop, Motorcycle, Bicycle Parts & etc |
|
0.20 - 1.60 | G.I & Other Coated Sheet |
|||
SPCD | Dull Finish | 0.30 - 1.20 | Automotive
Parts, Electrical Parts, Electronic Parts, Fire Extinguisher |
|
SPCE | 0.40 - 1.20 | |||
SPCF |
SPECIFICATION : JFS A 2001 (JFS) Cold-rolled steel sheet and strip for automobile use | ||||
---|---|---|---|---|
Symbol Of Quality | Surface Finish | Thickness (mm) | Width (mm) | Application / User |
JSC 270 C | Dull Finish | 0.30 - 1.40 | 700 - 1250 | Automotive Inner Parts |
JSC 270 D | 0.30 - 1.20 | |||
JSC 270 E | ||||
JSC 340 W | 0.40 - 1.60 | |||
JSC 370 W | ||||
JSC 390 W | ||||
JSC 440 W |
SPECIFICATION : JIS G 3135 (SPFC) Cold-reduced high strength steel sheet and strip with improved formability for automobile structural uses | ||||
---|---|---|---|---|
Symbol Of Quality | Surface Finish | Thickness (mm) | Width (mm) | Application / User |
SPFC 340 | Dull Finish | 0.60 - 2.00 | 700 - 1250 | Automotive Parts & Tubes |
SPFC 370 | ||||
SPFC 390 | ||||
SPFC 440 |
SPECIFICATION : JIS G 3113 (SAPH) Hot-rolled steel plate, sheet and strip for automobile structural uses | ||||
---|---|---|---|---|
Symbol Of Quality | Surface Finish | Thickness (mm) | Width (mm) | Application / User |
SAPH 310 | Dull Finish | 1.80 - 3.50 | 700 - 1250 | Hot Rolled Steel plate, sheet and strip for automotive structural use |
SAPH 370 | ||||
SAPH 400 | ||||
SAPH 440 |
SPECIFICATION : JIS G 3131 (SPH) Hot-rolled carbon steel strip and sheet of commercial and drawing qualities | ||||
---|---|---|---|---|
Symbol Of Quality | Surface Finish | Thickness (mm) | Width (mm) | Application / User |
SPHC | Dull Finish | 1.80 - 3.50 | 700 - 1250 | Commercial Quality |
SPHD | Drawing Quality | |||
SPHE | Deep Drawing Quality | |||
SPHF | Deep Drawing Quality ai killed |
SPECIFICATION : JIS G 3132 (SPHT) Hot-rolled carbon steel strip for pipes and tubes | ||||
---|---|---|---|---|
Symbol Of Quality | Surface Finish | Thickness (mm) | Width (mm) | Application / User |
SPHT 1 | Dull Finish | 1.80 - 3.50 | 700 - 1250 | Hot Rolled carbon steel strip for pipes and tubes |
SPHT 2 | ||||
SPHT 3 | ||||
SPHT 4 |
An order or enquiry should contain the following information:
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Mycron Steel Berhad, via its main operating segments, Mycron Steel CRC Sdn Bhd (“MCRC”) and Melewar Steel Tube Sdn Bhd (“MST”)
constantly strives to improve operational excellence and meet customers’ expectations.
MCRC achieved its first ISO 9001 certification by SIRIM and IQ Net in 1996, followed by MST in 1997. Over the years, MCRC and MST have
established a more effective Quality Management System to adapt to the latest global challenges.
View Certifications
In September 2016, MCRC obtained product certification by SIRIM in recognition of its product quality compliance against the Malaysian
Standard (MS 2651 : 2015) and Japanese Industrial Standards (JIS G3141 : 2011). MCRC’s products are verified, tested and confirmed, in
meeting the parameters covered by the two mentioned Quality Standards. These certifications are beneficial not only to MCRC, but also the
industry as a whole, as they provide our customers with assurance of quality and reliability. We are continually raising the bar as far as quality
is concerned, aligned with our mission, to be the highest Quality Cold Rolled Steel Sheets manufacturer in Malaysia.
On the environment front, MCRC plays a pivotal role in ensuring continual improvement of environmental performance in all its business
operations. In June 2014, MCRC obtained the ISO 14001 : 2004 Environmental Management System certification and in June 2017, MCRC
was certified with ISO 14001 : 2015. Subsequently in 2020, MCRC was awarded the SIRIM Eco-Label Licence and was granted the rights to
use the MyHIJAU Mark on its products since February 2021.
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