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Specifications - Using Cold-Rolled Steel Plate

Standards Classification General Use Lock Forming Drawing Deep Drawing Non-aging (stabilized) deep drawing Non-aging extra deep drawing POSCO KS D 3506 JIS G3302 CGCC CGCF CGCD CGCP CGCN CGCE CGL 35 CGC 41 CGC 45 CGC 50 CGC 58 CGCHS 35 CGCHS 40 CGCHS 45 CGCHS 50 CGCHS 60 SGCC SGCD 1 SGCD 2 SGCD 3 SGCD 3N SGC 35 SGC 41 SGC 45 SGC 50 SGC 58 SGCC SGCD 1 SGCD 2 SGCD 3 SGCD 3N SGC 340 SGC 400 SGC 440 SGC 490 SGC 570 ASTM 89 95 A 526 A 653-CQ A 527 A 653-LFQ A 528 A 653-DQ A 642 A 653-DQSK A446 Gr A2) A 653-SQ230 A446 Gr B A 653-SQ255 A446 Gr C A 653-SQ275 A446 Gr D A 653-SQ340 A446 Gr F A446 Gr E A 653-SQ550 EN 10142 DX51D DX52D DX53D DX54D S220 GD S250 GD S280 GD S320 GD S350 GD S550 GD

Structural Quality1)

High Strength Steel

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-1) Size for EN Structural Quality is EN10147 -2) The tensile strength of A446 Grade A is 310MPa (N/mm2)

-Using Hot-Rolled Steel Plate

Standards Classification Drawing General Use Lock Forming POSCO KS D 3506 JIS G3302 CGHD CGHC SGHC SGHC CGH 35 SGH 340 SGH 340 CGH 41 SGH 400 SGH 400 ASTM 89 A526-H A527-H 95 A653-CQ A653-LFQ A653HSQ275 A653HSQ341 A653HSQ343 EN 10142 EN-DX51DH EN-S250GDH EN-S280GDH EN-S320GDH EN-S350GDH -

Structural Quality CGH 45 SGH 440 SGH 440 A446-DH CGH 50 SGH 490 SGH 490 A446-FH CGH 55 SGH 540 SGH 540 A446-EMH CGH 58 -Size for EN Structural Quality is EN10147

Yield Point, Tensile Strength, Elongation - Using Cold-Rolled Steel Plate

Yield Point Classification (min. N/mm2) SGCC SGCD1 SGCD2 SGCD3 SGC340 SGC400 SGC440 SGC490 SGC570 245 295 335 365 560 Tensile Strength (min. N/mm2) 270 270 270 340 400 440 490 570 Elongation (min. %) Thickness (mm) 0.60 and 1.00 and over, under over, under 1.00 1.60 36 38 40 20 18 18 16 27 39 41 20 18 18 16 -

0.25 and over, under 0.40 20 18 18 16 -

0.40 and over, under 0.60 34 36 38 20 18 18 16 -

Test Piece 1.60 and over, under 2.50 and over 2.50 38 40 42 20 18 18 16 20 18 18 16 -

No. 5 Rolling Direction

-1.When the anti-aging characteristics are featured in the SGCD3 sheets and coils, the anti-aging characteristics are guaranteed for six (6) months after shipment from the manufacturer -2.In principle, tensile strength tests are not performed on plates with thickness under 0.25mm

- Using Hot-Rolled Steel Plate

Classification SGHC SGH340 SGH400 SGH440 SGH490 SGH540 Yield Point (min. N/mm2) 205 245 295 335 365 400 Tensile Strength (min. N/mm2) 270 340 400 440 490 540 Elongation (min. %) 20 18 18 16 No. 5 Rolling Direction Test Piece

Coating Weight - Minimum Coating Weight (both-sided coating)

Coat Weight Type 60 80 100 120 180 200 220 250 275 350 450 600 Average value of Double- Average value of Doublesided, Triple Spots sided, Single Spot Method Method 60 51 80 68 100 85 120 102 180 153 200 170 220 187 250 213 275 234 350 298 450 383 600 510 ASTM KS D 3506 (Z06), F06 Z08, F08 Z10, F10 Z12, F12 Z18, (F18) Z20 Z22 Z25 Z27 Z35 Z45 Z60 JIS G 3302 (Z06), F06 Z08, F08 Z10, F10 Z12, F12 Z18, (F18) Z20 Z22 Z25 Z27 Z35 Z45 Z60 POSCO K060, S060 K080, S080 K100, S100 K120, S120 K180 K200 K220 K250 K270 K350 K450 K600

-For non-alloy products, "Z" is added in front for KS and JIS and "K" for POSCO products. For alloy products, "F" is added in front for KS and JIS and "S" for POSCO products -Coat weight types Z35, Z45, Z60, F10, F12 and F18 are not applied to screw type 1,2 and 3 -For both-sides, triple spots coating weight, the average value of the measurement of 3 test pieces is applied -For one-side, single spot coating weight, the minimum value of the measurement of 3 test pieces is applied -Separate consultation is available for the maximum coating weight on both sides

Thickness Tolerances - Using Cold-Rolled Steel Plate

(Unit : mm)

Thickness Under 0.25 0.25 and over, under 0.40 0.40 and over, under 0.60 0.60 and over, under 0.80 0.80 and over, under 1.00 1.00 and over, under 1.25 1.25 and over, under 1.60 1.60 and over, under 2.00 2.00 and over, under 2.50 2.50 and over, under 3.15 3.15 and over

630 or under ±0.04 ±0.05 ±0.06 ±0.07 ±0.07 ±0.08 ±0.09 ±0.11 ±0.13 ±0.15 ±0.17

630 and over, under 1,000 ±0.04 ±0.05 ±0.06 ±0.07 ±0.07 ±0.08 ±0.10 ±0.12 ±0.14 ±0.16 ±0.20

Width 1,000 and over, 1,250 and over, 1,600 and over under 1,250 under 1,600 ±0.04 ±0.05 ±0.06 ±0.07 ±0.08 ±0.09 ±0.11 ±0.13 ±0.15 ±0.17 ±0.20 ±0.06 ±0.07 ±0.07 ±0.09 ±0.10 ±0.12 ±0.14 ±0.16 ±0.18 ±0.21 ±0.08 ±0.08 ±0.10 ±0.12 ±0.14 ±0.16 ±0.18 ±0.21 -

- Using Hot-Rolled Steel Plate

(Unit : mm)

Thickness 1.60 and over, under 2.00 2.00 and over, under 2.50 2.50 and over, under 3.15 3.15 and over, under 4.00 4.00 and over, under 5.00 5.00 and over, under 6.00 6.00 and over

Under 1,200 ±0.17 ±0.18 ±0.20 ±0.22 ±0.25 ±0.27 ±0.30

Width 1,200 and over, 1,500 and over, under 1,500 under 1,800 ±0.18 ±0.19 ±0.20 ±0.22 ±0.22 ±0.25 ±0.24 ±0.27 ±0.27 ±0.27 ±0.31 -

1,800 and over, 2,300 or under ±0.22* ±0.26* ±0.27* ±0.28* -

* Applied to under 2,000mm width

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