Surface Finish
|
Definition
|
Application
|
|
2B
|
Finished by heat treatment , picking or equipvalent cold rolling , followed by skin pass to obtain adequate luster surface.
|
With bright and smooth surface ,easy for further grinding to obtain brighter surface ,suitable for medical instruments ,milk
containers ,tableware and so on.
|
|
BA
|
Bright heat treatment after cold rolling.
|
Structual members .etc.kitchen utensil ,cutlery ,eleltric applicances ,medical instruments ,building decorations ,etc.
|
|
NO.3/NO.4
|
Polished with No.150-240 abrasives.
|
Milky food processing equipment , medicalinstruments ,building decorations.
|
|
HL
|
Finshed by polishing with abrasives of suitable grain size to obtain continuous streaks.
|
Building decorations ,such as elevators ,escalators ,door etc.
|
|
6K/8K
|
A mirror-like reflective surface ,which is obtained by polishing with successively finer abrasives and buffing extensively with
all gritlines are removed. |
Buliding entrances,bulkding column casting ,elevator's wall doors ,counters,sculptures etc.
|
Stainless Steel Coil/Sheet/Strip/Plate Information
|
|||||||||
Technique
|
Surface Finish
|
Grade Series
|
Thickness(mm)
|
Width(mm)
|
|||||
Main Dimension
|
|||||||||
20-850
|
1000
|
1219
|
1240
|
1250
|
1500
|
||||
Hot Rolled
|
No.1 / 2E
|
201/202/
304
|
2.2-12.0
|
√
|
√
|
√
|
√
|
|
√
|
Cold Rolled
|
2B
|
201/304
|
0.25-3.0
|
√
|
√
|
√
|
√
|
√
|
√
|
410S/430
|
0.25-2.0
|
√
|
√
|
√
|
√
|
|
|
||
No.4 / Hairline
Mirror / Linen
SB
|
201/304
|
0.22-3.0
|
√
|
√
|
√
|
√
|
√
|
|
|
410S/430
|
0.25-2.0
|
√
|
√
|
√
|
√
|
√
|
|
||
BA
|
201/304
|
0.2--1.8
|
√
|
√
|
√
|
√
|
|
|
|
410S/430
|
0.25-2.0
|
√
|
√
|
√
|
√
|
|
|
||
2BA
|
√
|
√
|
√
|
√
|
|
|
Chemical composition and mechanical properties of stainless steel
|
|||||||||
Grade
|
Chemical Composition (%)
|
Mechanieal Performece
|
|||||||
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Mo
|
Hardness
|
|
201
|
≤0.15
|
≤1.00
|
5.5/7.5
|
≤0.060
|
≤0.03
|
3.5/5.5
|
16.0/18.0
|
/
|
HB≤241,HRB≤100, HV≤240
|
304
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.045
|
≤0.03
|
8.0/11.0
|
18.00/20.00
|
/
|
HB≤187,HRB≤90,HV≤200
|
316
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.045
|
≤0.03
|
10.00/14.00
|
16.0/18.0
|
2.00/3.00
|
HB≤187, HRB≤90 HV≤200
|
316L
|
≤0.03
|
≤1.00
|
≤2.00
|
≤0.045
|
≤0.03
|
10.00/14.00
|
16.0/18.0
|
2.00/3.00
|
HB≤187, HRB≤90 HV≤200
|
410
|
≤0.15
|
≤1.00
|
≤1.25
|
≤0.060
|
≤0.03
|
≤0.060
|
11.5/13.5
|
/
|
HB≤183, HRB≤88 HV≤200
|
430
|
≤0.12
|
≤1.00
|
≤1.25
|
≤0.040
|
≤0.03
|
/
|
16.00/18.00
|
/
|
HB≤183, HRB≤88 HV≤200
|