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Plating
Usually, EN ISO 4042 Electroplated coatings standard will be followed to make fastners surface coating. And below you can find the technical characteristics of surface coatings:

Electrolytic coating EN ISO 4042 (Excerpt)

Technical characteristics of surface coatings

Designation
Characteristic
Appearance
Nominal
Coating
Thickness
µ
Time without
the Presence of
White Corrosion Products on the Surface Involved,
min. hours
Time without
the Presence of
Red Corrosion Products on the Surface Involved,
min. hours
Fe/Zn 5 c 1A
Transparent, Clear, with Light Bluish Reflections
5
6
24
Fe/Zn 8 c 1A
8
48
Fe/Zn 12 c 1A
12
72
Fe/Zn 5 c 2C
Iridescent Yellow
5
48
72
Fe/Zn 8 c 2C
8
72
120
Fe/Zn 12 c 2C
12
72
144
Fe/Zn 5 c 2D
Olive Green with Brown or Bronze Tones
5
72
96
Fe/Zn 8 c 2D
8
96
144
Fe/Zn 12 c 2D
12
96
168
Fe/Zn 5 c Bk
Black
5
12
-
Fe/Zn 8 c Bk
8
24
72
Fe/Zn 12 c Bk
12
24
96

 

Material
Note: For more information about the material compostion of JIS, SAE/AISI standard, please visit the material page.

Carbon composition correspondence table among countries.

Standard

Designation

Composition%
Designation
C
Si
Mn
Cr
Ni
Mo
Cu
Ti
S
P
N
USA
JPN
GER
普通碳素
结构钢
GB700-88
Q215
(A2、C2)
0.09~0.15
≤0.3
0.25~0.55
-
-
-
-
-
≤0.05
≤0.045
-
1010
SBC300
C15
Q235
(A3、C3)
0.14~0.22
≤0.3
0.3~0.65
-
-
-
-
-
≤0.05
≤0.045
-
1015
SCD3
C22
Q255
(A4、C4)
0.18~0.28
≤0.3
0.4~0.7
-
-
-
-
-
≤0.05
≤0.045
-
1020 1023
1025
SCD4
C22
优质碳素
结构钢
GB699-88
10
0.07~0.14
0.17~0.37
0.35~0.65
≤0.15
≤0.25
-
≤0.25
-
≤0.035
≤0.035
-
1010 1012
SWRCH10A
CK10
15
0.12~0.17
0.17~0.37
0.35~0.65
≤0.25
≤0.25
-
≤0.25
-
≤0.035
≤0.035
-
1015 1017
SWRCH15A
CK15
25
0.22~0.30
0.17~0.37
0.5~0.8
≤0.25
≤0.25
-
≤0.25
-
≤0.035
≤0.035
-
1025 1026
1029
SWRCH25K
CK25
30
0.27~0.35
0.17~0.37
0.5~0.8
≤0.25
≤0.25
-
≤0.25
-
≤0.035
≤0.035
-
1030 1034
SWRCH30K
CK30
35
0.32~0.40
0.17~0.37
0.5~0.8
≤0.25
≤0.25
-
≤0.25
-
≤0.035
≤0.035
-
1034 1035
SWRCH35K
CK35
45
0.42~0.50
0.17~0.37
0.5~0.8
≤0.25
≤0.25
-
≤0.25
-
≤0.035
≤0.035
-
1045
SWRCH45K
CK45
弹簧钢
GB1222-84
55SiMn
0.52~0.60
1.5~2.0
0.6~0.9
≤0.35
≤0.35
-
≤0.25
-
≤0.035
≤0.035
-
9255
SUP6
SUP7
55Si7
60Si2Mn
0.56~0.64
1.5~20.0
0.6~0.9
≤0.35
≤0.35
-
≤0.25
-
≤0.035
≤0.035
-
9260
SUP6
SUP7
60SiMn5
60Si2MnA
0.56~0.64
1.6~2.0
0.6~0.9
≤0.35
≤0.35
-
≤0.25
-
≤0.03
≤0.03
-
碳素工具钢
GB1298-86
T8、T8A
0.75~0.84
≤0.35
≤0.4
≤0.25
≤0.2
-
≤0.3
-
≤0.03
≤0.03
-
W1-8
SK5
C85W
T9、T9A
0.85~0.94
≤0.35
≤0.4
-
-
-
-
-
≤0.03
≤0.03
-
W1-8.5
SK4
T10、T10A
0.95~1.04
≤0.35
≤0.4
-
-
-
≤0.03
≤0.03
-
W1-9.5
SK3
C105W2

 

Stainless steel correspondence table between countries

Standard
Designation
Composition%
Designation
C
Si
Mn
Cr
Ni
Mo
Cu
Ti
S
P
Al
USA
JPA
GER
不锈钢
GB1220-92
00Cr19Ni10 ≤0.03 ≤1.0 ≤2.0 18.0~20.0 8.0~12.0 - - - ≤0.03 ≤0.035 - 304L SUS304L X2CrNi
-18.9
1Cr19Ni12 ≤0.12 ≤1.0 ≤2.0 17.0~19.0 10.5~13.0 - - - ≤0.03 ≤0.035 - 305 SUS305 X5CrNi
-19.11
0Cr25Ni12 ≤0.08 ≤1.0 ≤2.0 24.0~26.0 19.0~22.0 - - - ≤0.03 ≤0.035 - 310S SUS-310S
0Cr17Ni12Mo2 ≤0.08 ≤1.0 ≤2.0 16.0~18.5 10.0~14.0 2.0~3.0 - - ≤0.03 ≤0.035 - 316 SUS316 X5CrNi
-Mo18.1
00Cr17Ni14Mo2 ≤0.03 ≤1.0 ≤2.0 16.0~18.0 12.0~15.0 2.0~3.0 - - ≤0.035 ≤0.035 - 316L SUS316L X2CrN
i-Mo18.1
1Cr18Ni12Mo2Ti ≤0.12 ≤1.0 ≤2.0 16.0~19.0 11.0~14.0 1.8~2.5 - 5*(c%-0.02~0.8 ≤0.03 ≤0.035 - X10CrNi
-MoTi
0Cr18Ni12Mo2Ti ≤0.08 ≤1.0 ≤2.0 16.0~19.0 11.0~14.0 1.8~25 - 5*c%~0.7 ≤0.03 ≤0.035 - 316Ti SUS316Ti X10CrNi-
MoTi18.0
1Cr18Ni9Ti ≤0.12 ≤1.0 ≤2.0 17.0~19.0 8.0~11.0 - - 5*(c%-0.02~0.8 ≤0.03 ≤0.035 - 321H SUS312H X12CrNi
-Ti18.9
2Cr13 0.16~0.25 ≤1.0 ≤1.0 12.0~14.0 ≤0.6 - - ≤0.03 ≤0.035 - 420 SUS420J1 X20Cr13
9Cr18MoV 0.85~0.95 ≤0.8 ≤0.8 17.0~19.0 ≤0.6 1.0~1.3 - ≤0.03 ≤0.035 - 440B SUS440B X90CrMo
-V18
0Cr17Ni7Al ≤0.09 ≤1.0 ≤1.0 16.0~18.0 6.5~7.75 - ≤0.5 ≤0.03 ≤0.035 0.75~1.5 17-7PH
(631)
SUS631 X7CrNi
-A117.7
1Cr18Ni9 ≤0.15 ≤1.0 ≤2.0 17.0~19.0 8.0~10.0 - - - ≤0.03 ≤0.035 - 302 SUS302
Y1Cr18Ni9 ≤0.15 ≤1.0 ≤2.0 17.0~19.0 8.0~10.0 需要时加≤0.6 - ≤0.15 ≤0.20 - 303 SUS303 X12CrNi
-S18.8
0Cr18Ni9 ≤0.07 ≤1.0 ≤2.0 17.0~19.0 8.0~11.0 - ≤0.03 ≤0.035 - 304 SUS304 X5Cr-
Ni18.9

Note: For more information about the material compostion of JIS, SAE/AISI standard, please visit the material page.

For more detail about the available surface coating and material technical information, please feel free to contact our Tech Dept by email tech@peaksight.com. We're always glad to answer any of your quesitons.

 

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