G Steel G Steel G Steel G Steel
มาตรฐานเกรด และคุณสมบัติ
มาตรฐานเกรด และคุณสมบัติ มีดังนี้
a) Thickness and Width:


  Minimum Minimum
Thickness (Gauge)
1.0 mm 13.0 mm
Width 900 mm 1550 mm

Possible combination of thickness and width for different chemistry groups
Chemistry groups Thickness Range (T) Possible Width (W)
C < 0.14% 1.00 mm 900 < W < 1250 mm
1.01 - 1.50 mm W < 600xT + 650 mm
1.51 -13.0 mm 900 < W < 1550 mm
C < 0.29% 1.20 mm 900 < W < 1250 mm
1.21 - 2.00 mm W < 375xT + 800 mm
2.01 - 13.00 mm 900 < W < 1550 mm
C < 0.29% 1.50 mm 900 < W < 1250 mm
1.51 - 2.80 mm W < 230xT + 906 mm
2.81 - 13.00 mm 900 < W < 1550 mm

b) Width deviation within a single coil will be within ? ASTM A568 tolerances. Details available on request
c) Thickness deviation within a single coil will be within ? ASTM A568 tolerances. Details available on request
d) Product crown within a single coil will lie within +/-50mm. Under certain combinations of chemistry and dimension this value can be as low as +/-20mm. Details available on request
e) Strip flatness within a single coil will lie within 20 I-units. This is equivalent to a 9mm distortion over a 1000 mm wave-length.


Application Group Thailand
( TIS )
Japan
( JIS )
United State of America
( ASTM, SAE )
Europe
( EN, BS, DIN )
Commercial/ Drawing TIS 528; HR 1, 2, 3, 4 JIS G 3131; SPHC, SPHD, SPHE ASTM A 569
ASTM A 621
ASTM A 622
ASTM A 635; 1006 to 1012
SAE J 403; 1006 to 1012
EN 10111; DD11, 12,13,14
BS 1449; HR 1, 2, 3, 4, 14, 15
BS 1449; HR 34/20, 37/23, 43/25, 50/35
DIN 1614; St 22, 23, 24
Sturctural
       
- General Structure TIS 1479; SS330, 400, 490, 540 JIS G 3101; SS330, 400, 490, 540
JIS G 3136; SN 400 A, B
SN 490 B
ASTM A 36
ASTM A 283; Gr. A, B, C, D
ASTM A 570; Gr. 30, 33, 36, 40, 45, 50, 55
ASTM A 678; Gr. A, B, C, D
ASTM A 635; 1006 to 1012
SAE J 403; 1005 to 1026
SAE 1015 to 1055
ASTM A 572; Gr. 42, 50, 60, 65
ASTM A 607; Gr. 45, 50, 55, 60, 65
EN 10025; S185, 235, 275, 355
E 295, 335, 360
BS 4360; 40A, B, C
43A, B, C
50A, B, C
DIN 17100; St33, 37-2, 37-3, 44-2, 44-3
50-2, 50-3, 52-3
- High Strength Low Alloy
( HSLA )
    ASTM A 572; Gr. 42, 50, 60, 65
ASTM A 607; Gr. 45, 50, 55, 60, 65
EN 10149-2; S315MC, 355, 420, 460, 500
- Welded Structure TIS 1499; SM400 A, B,C
SM490 A, B, C, YA,YB
SM520 B, C
SM 570
JIS G 3106; SM400 A, B, C
SM490A, B, C, D
SM520 B, C
SM570
  EN 10113-2; S275, 355, 420, 460
- Automotive Structure TIS 1999; SAPH 310, 370, 400, 440 JIS G 3113; SAPH 310, 370, 400, 440 ASTM A 715; Gr. 50, 60, 70 EN 10149-2; S315MC, 355, 420, 460, 500
Formability for Automotive Structure TIS 1884; SPFH 490, 540, 540Y JIS G 3134; SPFH 490, 540, 540Y   EN 10149-3; S260NC, 315, 355, 420NC
- Machine Structure TIS 1501; S10C to S58C;S15ck,S20ck JIS G 4051; S10C to S58C    
- Pipe & Tube TIS 1735; SPHT 1, 2, 3, 4 JIS G 3132; SPHT1, 2, 3, 4
JIS G 3444; STK290, 400, 490, 500, 540
JIS G 3445; STKM 11 - 20
JIS G 3461; STB340, 410, 510
ASTM A 36
ASTM A 283; Gr. A, B, C, D
ASTM A 570; Gr. 30, 33, 36, 40, 45, 50, 55
ASTM A 607; Gr. 45, 50, 55, 60, 65
ASTM A 588; Gr. A, B, C, D, E, F, K
SAE 1015 to 1021
EN 10025, S235, 275, 355
BS 4360; 40A, B, C
43A, B, C
50A, B, C
Gas Cylinder/
Pressure Vessel
TIS 2060; SG255, 295, 325, 365, JIS G 3116; SG255, 295, 325, 365
JIS G 3115; SPV235, 315, 355, 410, 450, 490
JIS G 3103; SB 410, 450, 480
ASTM A 285; Gr. A, B, C
ASTM A 414; Gr. A, B, C, D, E, F, G
ASTM A 516; Gr. 55, 60, 65
ASTM A 204
EN 10120; P245, 265, 310, 355
Atmospheric TIS 2011; SPA-H JIS G 3125; SPA-H ASTM A 242 EN 10155
Corrosion   JIS G 3114; SMA 400 A, B, C ASTM A 606  
Resistant   SMA 490 A, B, C ASTM A 709  
Cold Rolled Steel     SAE 1006 to 1055
AISI 1006 to 1055
 
Oil & Gas Pipes     API 5L; A, B, X42, X46, X52, X56, X60, X65