Electro Galvanized Steel Sheets & Coils(KS D3528-SECC, JISG 3313-SECC)

Standard Specification(ASTM and JIS)

 CHARACTERISTICS OF PRODUCT

 

1. Super Workability Highly workable steel sheet and strip which are used as base metal for all Electro-Galvanized Sheets are produced Electro-Galvanized Steel Sheets offer workability comparable to that of the base metal. The lubricating property of the zinc coating further enhances workability.   2. Excellent Paint Adhesion Electro-Galvanized Steel Sheets are free from spangles and pinholes. Surfaces are treated with phosphate or chromate to assure improved paint adhesion as well as a smooth and pleasant finish.   3. Rustproof To enhance the anti-corrosion property Electro-Galvanized Steel Sheets are chemically treated or oiled to protect the zinc coating from white rust. Rust is positively retarded even when the base metal is exposed to the atmosphere during fabrication.   4. Weldability Spot or seam welding can be performed as with plain steel sheets.   5. Variety of Products You can choose both side, one side or differential coating, as well as chromatic, phosphatic or oiling treated product by application.

ASTM A591, Steel Sheets, Cold-Rolled, Electrolytic Zinc-Coated. 1. Qualities Qualities Base metal Commercial quality ASTM A366, Cold-rolled carbon, steel sheets, Commercial quality Drawing quality ASTM A619, Cold-rolled carbon steel sheets, Drawing Quality Drawing quality, Special killed ASTM A620, Cold-rolled carbon steel sheets, Drawing Quality, Special killed. Structural quality ASTM A611, Cold-rolled carbon steel sheets,         Structural quality 2. Thickness Tolerances Specified width in.(mm) Thickness tolerances, Over and under, in. (mm) Specified thickness, in.(mm) Over 0.057 to 0.1001.45 to 2.54 inch Over 0.039 to 0.057(0.99 to 1.45) inch Over 0.020 to 0.039(0.51 to 0.99) inch Over 0.014 to 0.050(0.36 to 0.51) inch 0.014(0.36) and thinner Up to 40(1020) over 40 to 60 (1020 to 1520) 0.005(0.13) 0.005(0.13) 0.004(0.10) 0.004(0.10) 0.003(0.08) 0.003(0.08) 0.002(0.05) 0.002(0.05) 0.0015(0.04)

1.Classification and symbol 1.1 Grades and qualities Class Symbol Synopses Main use Base metal used Base metal Class 1 c SECC For general use SPCC Class 2 c SECD For drawing SPCD Class 3 c SECE For deep drawing SPCE SPCEN      1.2 Surface treatments   Type of surface treatment Symbol   Chromate treatment C   Phosphate treatment P   Oiling O 2. Specification Classification KS(D-3528) JIS(G3313) ASTM A591 Commercial Quality SECC SECC CQ Drawing Quality SECD SECD DQ Deep Quality SECE SECE DDQ Structural Quality Structural Structural Structural 3. Thickness Tolerances(Cold-rolled sheet used as base meal) Unit : mm WIDTH THICKNESS Under 630 630 and over to 1000, excl. 1000 and over to 1250, excl. 1250 and over to 1600, excl. 1600 and over  Under 0.40  ± 0.04 ± 0.04 ± - 0.40 and over to 0.60 excl. ± 0.05 ± 0.05 ± 0.05 ± 0.06 -  0.60 and over to 0.80 excl.   ± 0.06 ± 0.08  ± 0.06 ± 0.07 ± 0.08  0.80 and over to 1.00 excl.  ± 0.07 ± 0.07  ± 0.08 ± 0.09 ± 0.10  1.00 and over to 1.25 excl.  ± 0.08 ± 0.08  ± 0.09 ± 0.10 ± 0.12  1.25 and over to 1.60 excl.   ± 0.09 ± 0.10  ± 0.11 ± 0.12 ± 0.14  1.60 and over to 2.00 excl.  ± 0.10 ± 0.11  ± 0.12 ± 0.14 ± 0.16  2.00 and over to 2.50 excl. ± 0.12 ± 0.13 ± 0.14 ± 0.16 ± 0.18  2.50 and over to 3.15 excl. ± 0.14 ± 0.15 ± 0.16 ± 0.18 ± 0.20  3.15 and over ± 0.16 ± 0.17 ± 0.19 ± 0.20 - 4. Width Tolerances Unit : mm Base metal  Width Cold-rolled sheet used as base metal Under 1250 + 7 0 1250 and over -10 0 5. Length Tolerances Unit : mm Base metal  Width Cold-rolled sheet used as base metal Under 2000 +10 0 2000 and over to 4000, excl. +15 0 4000 and over to 6000, excl. +20 0 Specific uses. Electrial Appliance Refrigerator Washing machine Oil stove Heater Air conditioner Furniture and machinery Desk, Filing cabinet, Locker, Door Automobiles Body, Floor, Fuel tank, Air cleaner, various cover Others Elevator, Various Toy, Container