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Copper-plated Steel (Cus)

Product Catalog

Copper-plated Steel is a product that electroplates cold-rolled steel with copper, and is highly conductive with strong brazing (self-welding) properties. With these unique properties, it is generally applied as components for household appliances and automobiles.

Application

Electronics Tubes / Automotive Tubes

Schematic Image

Product Specification

Product Standard Code

Standard KS ASTM JIS EN
Code D 3512 - G 3141 -

Coating Weight (Unit : g/m²)

Symbol Standard Thickness(μ) Nominal Coating Weight
(g/m²)
Aim
(g/m²)
Minimum Coating Weight
(g/m²)
#5 0.5 5 4.0 ~ 6.0 3.0
#10 1 10 9.0 ~ 11.0 8.0
#20 2 20 18.0 ~ 22.0 17.0
#30 3 30 28.0 ~ 32.0 26.0
#50 5 50 46.0 ~ 54.0 43.0
#75 7.5 70 70.0 ~ 80.0 65.0

Oil Weight

Comply with customer requirement

Post treatment

Organic Film

① Classification by Type of Steel

Symbol Type of Steel Application Remark
SPCC CR1 For Commercial, Single and Double Wall Tube Cold Rolled Steel Sheet and Strip
SPCD CR2 For Drawing
SPCE CR3 For Deep Drawing

BP for Tinplate can also be applied to Copper-plated Steel.

② Classification by Temper

Temper Grade Symbol HRB HV HR30t Remark
Standard Temper Grade S ≤65 ≤115 ≤60 Cold Rolled Steel Sheet and Strip
As-Annealed A ≤57 ≤105 ≤55
1/8 Hard 1/8H 50 ~ 71 95 ~ 130 50 ~ 63
1/4 Hard 1/4H 65 ~ 80 115 ~ 150 60 ~ 70
1/2 Hard 1/2H 74 ~ 89 135 ~ 180 66 ~ 75
Full Hard H ≥85 ≥170 ≥72

③ Classification by Surface Finish

Designation Symbol Remark Aim
(Ra/㎛)
KS/JIS TCC
Bright Finish B BF Blackplate finished to have a smooth surface with the use of temper-mill work rolls that have been ground to a low roughness 0.20 ~ 0.40
Matte Finish D D7 Blackplate finished to have a dull surface with the use of temper-mill work rolls with dull surface texture 0.70 ~ 1.30

Mechanical Property

Symbol TS(kg/mm2) YP(kg/mm2) El(%) HR30t
SPCC ≥28 ≤27 ≥32 ≤60
SPCD ≥28 ≤27 ≥34 ≤55
SPCE ≥28 ≤18 ≥36 ≤45