JIS

According to major international standards for identifying Hot Dipped Zinc Coated Galvanized Sheets , in the following you will find the comparison chart for the most important of them .

4-Shape and Dimensional tolerances

Cold-rolled base metal used

Width	up to 6.30mm	6.30mm and over up to 1000 mm	1000mm and over up to 1250	1250mm and over up to 1600	1600 and over
Nominal Thickness
Up tp 0.25	+-0.04	+-0.04	+-0.04	---	---
0.25 and over , up to 0.40	+-0.05	+-0.05	+-0.05	+-0.06	---
0.40 and over , up to 0.60	+-0.06	+-0.06	+-0.06	+-0.07	+-0.08
0.60 and over , up to 0.80	+-0.07	+-0.07	+-0.07	+-0.07	+-0.08
0.80 and over , up to 1.00	+-0.07	+-0.07	+-0.08	+-0.09	+-0.10
1.00 and over , up to 1.25	+-0.08	+-0.08	+-0.09	+-0.10	+-0.12
1.25 and over , up to 1.60	+-0.09	+-0.10	+-0.11	+-0.12	+-0.14
1.60 and over , up to 2.00	+-0.11	+-0.12	+-0.13	+-0.14	+-0.16
2.00 and over , up to 2.50	+-0.13	+-0.14	+-0.15	+-0.16	+-0.18
2.50 and over , up to 3.15	+-0.15	+-0.16	+-0.17	+-0.18	+-0.21
3.15 and over	+-0.17	+-0.18	+-0.20	+-0.21	---

Table 1.Equivalent Coating Thickness

Coating mass symbol	Z06	Z08	Z10	Z12	Z18	Z20	Z22	Z25	Z27
Equivalent coating thickness	0.013	0.017	0.021	0.026	0.034	0.040	0.043	0.049	0.054
Coating mass symbol	Z 35	Z 45	Z60	Z04	Z06	Z08	Z10	Z12	Z18
Equivalent coating thickness	0.064	0.080	0.102	0.008	0.013	0.017	0.021	0.026	0.034

Flatness

-hot-rolled base metal used

Thickness	Width
	Up to 1250	1250 and over , up to 1600	1600and over , up to 2000	2000 and over , up to 3000	3000 and over
1.60 and over , up to 3.15	16 max	18 max	20 max	---	---
3.15 and over , up to 4.00	16 max.			---	---
4.00 and over , up to 6.00	14 max.			24 max.	25 max.
6.00	13 max.			21 max.	22 max.

Cold-rolled base metal used

Width		Type
	Bow	Edge wave	Center buckle
up to 1000	12 max.	8 max.	6 max.
1000 and over , up to 1250	15 max.	9 max.	8 max.
1250 and over , up to 1600	15 max.	11 max.	8 max.
1600 and over	20 max.	13 max.	9 max.

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