1. Hot Rolled

Thickness Tolerance

Unless otherwise specified, thickness follows figures presented in Table1 and, if specified, figures presented in Table 2. Thickness is measured at an arbitrary point which is more than 25mm inward from the edge in the case of mill edge and more than 15mm inward from the edge in the case of slit edge. This is not applicable to unstable parts at the start and the end of rolling.

<Table 1> (Unit : mm) Thickness \ Width Thickness Tolerance under 1000 1000 and over, under 1250 1250 and over, under 1600 Over 2.00, under 2.50 ±0.25 ±0.30 - 2.50 and over, under 3.15 ±0.30 ±0.35 ±0.40 3.15 and over, under 4.00 ±0.35 ±0.40 ±0.45 4.00 and over, under 5.00 ±0.40 ±0.45 ±0.50 5.00 and over, under 6.00 ±0.50 ±0.55 ±0.60 6.00 and over, under 8.00 ±0.60 ±0.65 ±0.75 <Table2> (Unit : mm) Thickness \ Width Thickness Tolerance Under 800 800 and over, under 1000 1000 and over, under 1250 1250 and over, under 1600 2.00 and over, under 2.50 ±0.20 - - - 2.50 and over, under 3.15 ±0.23 ±0.25 ±0.30 ±0.35 3.15 and over, under 4.00 ±0.26 ±0.30 ±0.35 ±0.40 4.00 and over, under 5.00 ±0.29 ±0.38 ±0.40 ±0.45 5.00 and over, under 6.00 ±0.32 ±0.45 ±0.45 ±0.50 6.00 and over, under 8.00 - ±0.55 ±0.60 ±0.60

Width Tolerance

Width tolerance follows the figures in Table 3 <Table 3> (Unit : mm) Width Tolerance under 1000 1000 and over Mill Edge - +25 ++0 +30 ++0 Slit Edge under 6.00 +10 ++0 +10 ++0 6.00 and over +10 ++0 +15 ++0

Maximum Camber

Maximum camber tolerance is 5mm from the arbitrary length of 2,000mm. (Measurement is not applicable to unstable parts at the start and finish of coil rolling.)

2. Cold Rolled

Thickness Tolerance

Unless otherwise specified, thickness follows the figures in Table 4 and, if specified, the figures in Table 5. Thickness is measured at an arbitrary point which is more than 25mm inward from the edge in the case of mill edge and more than 15mm inward from edge in the case of slit edge. Not applicable to unstable parts at the start and the end of rolling.

<Table 4> (Unit : mm) Thickness \ Width Thickness Tolerance Under 1250 1250 and over, under 1600 0.30and over, under 0.60 ±0.05 ±0.08 0.60 and over, under 0.80 ±0.07 ±0.09 0.80 and over, under 1.00 ±0.09 ±0.10 1.00 and over, under 0.25 ±0.10 ±0.12 1.25 and over, under 1.60 ±0.12 ±0.15 1.60 and over, under 2.00 ±0.15 ±0.17 2.00 and over, under 2.50 ±0.17 ±0.20 2.50 and over, under 3.00 ±0.22 ±0.25 <Table 5> (Unit : mm) Thickness \ Width Thickness Tolerance 160 160 and over, under 250 250 and over, under 400 400 and over, under 630 630 and over, under 1000 1000 and over, under 1250 0.10 and over, under 0.16 ±0.015 ±0.020 - - - - 0.16 and over, under 0.25 ±0.020 ±0.025 ±0.030 ±0.030 - - 0.25 and over, under 0.40 ±0.025 ±0.030 ±0.035 ±0.035 ±0.038 ±0.038 0.40 and over, under 0.60 ±0.035 ±0.040 ±0.040 ±0.040 ±0.040 ±0.040 0.60 and over, under 0.80 ±0.040 ±0.045 ±0.045 ±0.045 ±0.05 ±0.05 0.80 and over, under 1.00 ±0.040 ±0.05 ±0.05 ±0.05 ±0.05 ±0.06 1.00 and over, under 1.25 ±0.05 ±0.05 ±0.05 ±0.06 ±0.06 ±0.07 1.25 and over, under 1.60 ±0.05 ±0.06 ±0.06 ±0.06 ±0.07 ±0.08 1.60 and over, under 2.00 ±0.06 ±0.07 ±0.08 ±0.08 ±0.09 ±0.10 2.00 and over, under 2.50 ±0.07 ±0.08 ±0.08 ±0.09 ±0.10 ±0.11 2.50 and over, under 3.00 ±0.08 ±0.09 ±0.09 ±0.10 ±0.11 ±0.12

Width Tolerance

Unless otherwise specified, the width of coils follows the figures in Table 6 and sheet the figures in Table 7 and, if specified, in Table 8.

<Table 6> (Unit : mm) Edge \ Width Width Tolerance Under 400 400 and over, under 630 630 and over, under 1000 1000 and over, under 1524 Mill Edge +10 ++0 +20 ++0 +25 ++0 +30 ++0 Slit Edge +5 +0 +5 +0 +5 +0 +5 +0 <Table 7> (Unit : mm) Length Width Tolerance 3500 and under +5 +0 Over 3500 and under 6000 +15 ++0 Over 6000 +20 ++0 <Table 8> (Unit : mm) Thickness \ Width Width Tolerance Under 160 160 and over, under 250 250 and over, under 400 400 and over, under 630 630 and over, under 1000 0.60 ±0.15 ±0.20 ±0.25 ±0.30 ±0.50 0.60 and over, under 1.00 ±0.20 ±0.25 ±0.25 ±0.30 ±0.50 1.00 and over, under 1.60 ±0.20 ±0.30 ±0.30 ±0.40 ±0.60 1.60 and over, under 2.50 ±0.25 ±0.35 ±0.35 ±0.50 ±0.70 2.50 and over, under 3.00 ±0.30 ±0.40 ±0.40 ±0.50 ±0.80

Length Tolerance

Length tolerance of sheet follows the figures in Table 9.

<Table 9> (Unit : mm) Width Width Tolerance 3500 and under +10 ++0 Over 3500, and under 6000 +15 ++0 Over 6000 +30 + 0

Maximum Flatness Tolerance for Steel Sheets

Maximum flatness tolerance for sheet follows the figures in Table 10. Stretcher flatness correction is applied upon specific notification. Maximum flatness of 1/4H and 1/2H of STS 301 is in accordance with Table 11.

<Table 10> (Unit : mm) Width Length Maximum Flatness Stretcher Uncorrected Stretcher Corrected 1000 and under 2000 and under 15 3 over 2000 20 6 Over 100 2000 and under 20 6 over 2000 20 6 <Table 11> (Unit : mm) Width Thickness Maximum Flatness 1/4H 1/2H 600 and over, under1000 0.40 13 19 0.40 and over, under 0.80 16 22 0.80 and over 19 22 1000 and over, under 1219 0.40 16 26 0.40 and over, under 0.80 19 29 0.80 and over 26 29

Maximum Camber Tolerance for Coils

Maximum camber tolerance follows the figures in Table 12. Not applicable to unstable parts at the start and end of the rolling process.

<Table 12> (Unit : mm) Width Maximum Camber tolerance 40 and over, under 80 8 in an arbitrary length of 2000 80 and over, under 630 4 in an arbitrary length of 2000 630 and over 2 in an arbitrary length of 2000