The special steel and furniture tube products mainly include medium/high carbon steel, cold rolled ribbon steel, precison bright-finished ribbon steel and various high precision longitudinal welded pipe, etc.
① Thickness, allowable width deviation and weight:
Category
Grade
Product Thickness(mm)
Product Width(mm)
Unit Weight(T)
Range of Thickness (mm)
Allowable Deviation (mm)
Thickness (mm)
Allowable Deviation(mm)
Trimmed
Not Trimmed
Common carbonstructural steel
Q195 SPCC DC01 DC03 08Al
≤0.15
-0.015
≤0.50
>0.5~1.00
>1.00~3.00
-0.2
-0.25
-0.3
±2.00
Small<1.5ton
Big<2.5ton
0.15~0.25
-0.02
0.25~0.40
-0.03
0.41~0.60
-0.04
0.61~0.80
-0.04
0.81~1.00
-0.05
1.01~1.20
-0.06
High quality carbonstructural steel
45 50 60 40Mn 45Mn 65Mn
1.21~1.50
-0.07
≤0.50
>0.5~1.00
>1.00~4.00
-0.2
-0.25
-0.3
Width≤50
Width>50
<1.5ton
1.51~2.00
-0.08
+2 -1
+3 -2
2.01~2.50
-0.09
2.51~3.00
-0.1
>3.00~3.50
-0.12
Alloy Steel
50CrV4
>3.50~4.00
-0.15
Note: 1. For product thickness ≤0.5mm, the allwable thickness deviation is ±0.01mmbigger than the value in the above table; For product thickness >0.5mm, the allwable thickness deviation is ±0.02mmbigger than the value in the above table.2. We can provide customized steel strip according to customers' needs (the deviation value should not exceed the range in the above table).