◆ 일본공업규격 ( JIS Specification ) <<  이전화면  JIS G3302 Hot-dip Zinc-coated Steel Sheet and Coil 1. Designation and Mechanical Requirements Hot-rolled base metal used Designation Thickness(mm) Yield Point min.N/mm² Tensile Strength min.N/mm² Elongation min.% Test Piece SGHC 1.6 ~ 6.0 - - - No.5 Cut in Rolling Direction SGHC340 245 340 20 SGHC400 295 400 18 SGHC440 335 440 18 SGHC490 365 490 16 SGHC540 400 540 16 Cold-rolled base metal used Designation Thickness mm Yield Point min.N/mm² Tensile Strength min.N/mm² Elongation, min.% Test Piece Nominal Thickness, mm 0.25 to 0.40 under 0.40 to 0.60 under 0.60 to 1.0 under 1.0 to 1.6 under 1.6 to 2.5 under 2.5 and over SGCC 0.25~3.2 - - - - - - - - No.5 Cut in Rolling Direction SGCD1 0.40~2.3 - 270 - 34 36 37 38 - SGCD2 - 270 - 36 38 39 40 - SGCD3 0.60~2.3 - 270 - 38 40 41 42 - SGC340 0.25~3.2 245 340 20 20 20 20 20 20 SGC400 295 400 18 18 18 18 18 18 SGC440 335 440 18 18 18 18 18 18 SGC490 365 490 16 16 16 16 16 16 SGC570 0.25~2.0 560 570 - - - - - -   2. Weight of Zinc Coating Zinc Coating Designation Z08 Z10 Z12 Z18 Z20 Z22 Z25 Z27 Z35 Z45 Z60 Minimum Weight of Zinc Coating(g/m²) 80 100 120 180 200 220 250 275 350 450 600 Remarks : The minimum weight of zinc coating mentioned above indicates the minimum weight of zinc coating on both sides of sheets or coils. This expresses the average measured weight of zinc coating of triple spot test pieces cut from the test sheets.   3. Thickness Tolerances Hot-rolled base metal used unit : mm     Width Nominal Thickness   1200 under 1200 to 1500 under 1500 to 1800 under 1800 to 2300 and under 1.60 to 2.00 under ±0.17 ±0.18 ±0.19 (±0.22) 2.00 to 2.50 under ±0.18 ±0.20 ±0.22 (±0.26) 2.50 to 3.15 under ±0.20 ±0.22 ±0.25 ±0.27 3.15 to 4.00 under ±0.22 ±0.24 ±0.27 ±0.28 4.00 to 5.00 under ±0.25 ±0.27 - - 5.00 to 6.00 under ±0.27 ±0.29 - - 6.00 ±0.30 ±0.31 - -  Remarks : ( ) Those figures shall apply up to and excluding 2000mm width. Cold-rolled base metal used unit : mm     Width Nominal Thickness   630 under 630 to 1000 under 1000 to 1250 under 1250 to 1600 under 1600 and over under 0.25 ±0.04 ±0.04 ±0.04 - - 0.25 to 0.40 under ±0.05 ±0.05 ±0.05 ±0.06 - 0.40 to 0.60 under ±0.06 ±0.06 ±0.06 ±0.07 ±0.08 0.60 to 0.80 under ±0.07 ±0.07 ±0.07 ±0.07 ±0.08 0.80 to 1.00 under ±0.07 ±0.07 ±0.08 ±0.09 ±0.10 1.00 to 1.25 under ±0.08 ±0.08 ±0.09 ±0.10 ±0.12 1.25 to 1.60 under ±0.09 ±0.10 ±0.11 ±0.12 ±0.14 1.60 to 2.00 under ±0.11 ±0.12 ±0.13 ±0.14 ±0.16 2.00 to 2.50 under ±0.13 ±0.14 ±0.15 ±0.16 ±0.18 2.50 to 3.15 under ±0.15 ±0.16 ±0.17 ±0.18 ±0.21 3.15 and over ±0.17 ±0.18 ±0.20 ±0.21 -   4. Width Tolerance unit : mm    Tolerances 4444 Width4444   Hot-rolled base metal used Cold-rolled base metal used A B 1500 and Under + 25 0 + 10 0 + 7 0 Over 1500 + 10 0   5. Length Tolerances unit : mm  Hot-rolled base metal used Cold-rolled base metal used + 15 0 + 15 0 <<  이전화면

Welcome to csc3800.com