Email :
Karmko@Karmkogroup.com
1. Construction feld: Like metal decks, Ceiling, Verandas, Shutters, Sheds, Culverts ducts, roofng, partitions, fences, steel frames, decorations.
2. Appliances: Freezers, DVD cases, motor cases, Water heaters, washing machines, Stores, air condition, microwave, refrigerators.
3. Transportation: Containers, under body panel, Bus and Truck body panel, Fuel tanks, aircraft, etc. 4. Agricultural equipments: Barns, Sheds, Silos, Feeders, water tanks, green houses.
5. Furniture and other applications: Vending machines, drums office equipment, steel furniture, waste bins, lighting.
The coating thickness should correspond to the table given below and is line with industrial standards. Other than these, individual coating can be provided. As per best practices, a thinner zinc layer result in improved weld ability, better surface appearance and increased formability of the steel.
GOST 14918
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ASTM A653M-94
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JIS G 3302-94
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DIN 17612-77
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Mass of ing (g/m2) |
Coating Thk. (Micro m) |
Coating Designation |
Mass of coating (g/m2) |
Coating Designation |
Mass of coating (g/m2) |
C fle:///E:/ Al-Rehab%20 Group/ PHOTOS/ hd_sectors_ ransportation. jpg oating Designation |
Mass of coat oating (g/m2) |
142.5 to 258 | 10 to 18 | Z180 | 180 | Z18 | 180 | 200 | 200 |
>258 to 570 | >18 to 40 | Z275 | 275 | Z20 | 200 | 225 | 225 |
Z22 | 220 | 275 | 275 | ||||
Z25 | 250 | ||||||
Z27 | 270 |
Application
|
Delivery Standard
Document |
Steel grades
|
Characteristics (coating class, spangle and
surface protection) |
---|---|---|---|
The standard specifcation for galvanized or Zn-Fe coating steel sheet produced by a way of hot immersion |
ASTM A 653M | CQ, LFQ, DQ, SQ33, CS-A, CS-B, CS-C, SS230, SS255, SS270, SS340 |
Coating – Zn(Z120-350). By spangle pattern – with normal and minor spangles. By surface protection- chromated, oiled, chromated and oiled. |
Hot dip galvanized thin sheets and coils | JIS G 3302-94 | SGCC, SGC340, SGC400 |
Coating – Zn (Z12-35). By spangle pattern with normal (R) and minor (Z) spangles, temper-rolled (S). By surface protection – chromated (C), oiled (O), chromated and oiled (CO) |
Flat steel metal. Galvanized band and thin sheet of soft no alloyed steel |
DIN 17162-77, p.1 | St01Z, St02Z, St03Z, St04Z |
Coating-Zn (Z120-350). By spangle pattern – with normal (N) and minor (M) spangles. By surface quality – in coating condition (A), improved (B), high quality (C), By surface protection – chromated (C), oiled (O), chromate and oiled (CO). |
Hot dip galvanized thin sheet and band of constructional stee |
DIN 17162-80, p.2 | StE250-2z | Coating-Zn (Z120-350). By spangle pattern – with normal (N) and minor (M) spangles. By surface quality – in coating condition (A), improved (B), high quality (C), By surface protection – chromated (C), oiled (O), chromate and oiled (CO). |
Hot dip galvanized thin sheet and band of soft steel for cold processing |
EN 10142 EN 10326 | FeP02G, FeP03G, DX51D, DX52D, DX53D |
Coating-Zn (Z120-350). By spangle pattern – with normal (N) and minor (M) spangles. By surface quality – in coating condition (A), improved (B), high quality (C), By surface protection – chromated (C), oiled (O), chromate and oiled (CO). |
Hot dip galvanized thin sheet and band of constructional steel |
EN 10147 EN 10327 | S220GD, S250GD, S280GD, S320GD, S350GD, S550GD |
Coating-Zn (Z120-350). By spangle pattern – with normal (N) and minor (M) spangles. By surface quality – in coating condition (A), improved (B), high quality (C), By surface protection – chromated (C), oiled (O), chromate and oiled (CO). |
Thin sheet steel from continuous lines for forming and draw-forming |
STAO 38428679-05- 2007 |
08kp, 08ps, 08U | By application – general application (ON), for painting (PK), for cold shaping (KhSh). Coating class- P.1,2. By spangle pattern – with spangles (KR), free of spangles (MT) |
Thin sheet steel from continuous lines for cold shaping, stampings, wares and containers for nonfood materials of draw-forming |
STAO 38428679-0 2007 |
08kp, 08ps,08U | By application – general application (ON), for painting (PK), for cold shaping (KhSh). Coating class- P.1,2. By spangle pattern – with spangles (KR), free of spangles (MT) |