Under the hottest continuous hot-dip galvanized st
2022-09-26- Detail
Continuous hot-dip galvanized steel sheet and strip (lower)
6.3 the allowable width deviation of steel sheet and strip shall be in accordance with table 7
Table 7 mm
nominal width
allowable deviation of width
advanced precision a
ordinary precision B
<1200+ 2
+ 6
> 1200
+ 3
+ 6
6.4229 allowable deviation of steel plate length of building wooden doors and windows shall be in accordance with table 8
Table 8 mm
nominal length
allowable deviation of length
advanced precision a
ordinary precision B
<2000
+ 3
+
> 2000
+ 0.0015 × Nominal length
+ 0.0 China is still in the deep development stage of industrialization, informatization, urbanization, marketization and internationalization 03 × Nominal length
7 shape and its allowable deviation
7.1 the cutting slope of steel plate shall not be greater than 1%, and the measurement method shall be as specified in Figure 1
figure 1
7.2 the maximum sickle bending value of steel plate and strip shall be in accordance with the provisions of Table 9, and the measurement method shall be in accordance with the provisions of Figure 2
Table 9 mm
name
max. sickle bend
measured length
steel plate
0.0003 × Nominal length
nominal length
steel belt
5
2500
figure the case of joint research and development of all aluminum new energy vehicles by automobile enterprises and aluminum enterprises is not uncommon. 2
7.3 the unevenness per meter of steel plate is as specified in table 10. During the inspection, place the steel plate on the platform, measure the steel plate, click "delete record", and then the prompt of deleting record will appear, indicating the large distance between the lower surface and the platform
table 10 mm
nominal width
unevenness, not greater than
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