◇ 미국시험 및 재료협회 규격 ( ASTM Specification ) <<  이전화면 

ASTM A591, Steel Sheets, Cold-Rolled, Electrolytic Zinc-Coated
1. Quanlities
QualitiesBase 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. Coating Weights
Coating Class Minimum Check Limit Triple Spot Minimum Check Limit Single Spot
Decimal EquivalentsCoating Weight Decimal EquivalentsCoating Weight
One SideTotal Both Sides One SideTotal Both Sides
in.mmoz/ft²g/mm²in.mm oz/ft²g/mm²
A
B
C
none
0.000065
0.000140
none
0.00165
0.00356
none
0.075
0.165
none
22.9
50.4
none
0.000060
0.000125
none
0.00152
0.00318
none
0.070
0.150
none
21.3
45.8
 
3. Thickness Tolerances
Specified Width,
in.(mm)
Thickness Tolerances, Over and under, in.(mm)
Specified Thickness, in.(mm)
Over 0.057
to 0.100
(1.45 to 2.54),
incl
Over 0.039
to 0.057
(0.99 to 1.45),
incl
Over 0.020
to 0.039
(0.51 to 0.99),
incl
Over 0.014
to 0.020
(0.36 to 0.51),
incl
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)
 
4.  Material furnished under this specification shall conform to the applicable requirements of ASTM A568 for steel, carbon and High-Strength Low-Alloy Hot-rolled Sheet, Hot-rolled Strip, and Cold-rolled Sheet, General Requirements except for thickness tolerances above.


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