Actually, BA is the mirror finish of stainless steel, in simple terms, refers to the polishing of the stainless steel surface. The polishing methods are divided into physical polishing and chemical polishing. Local polishing can also be carried out on the surface of stainless steel, with polishing grades divided into ordinary polishing, ordinary 6K, fine grinding 8K, and ultra strong fine grinding 10K. The mirror gives people a sense of simplicity and fashion in the future.
BA finish is a product obtained by cold rolling, bright annealing, and smoothing. The surface has excellent glossiness and high reflectivity. A surface resembling a mirror. Used for household appliances, mirrors, kitchen equipment, decorative materials, etc.
BA finish is widely used in automatic washing machine drum, bathroom accessories, lampblack machine, dishwasher, microwave oven, stainless steel pot, stainless steel pot, button batteries, watch shell, mobile phone shell, stainless steel spoon, handrail elevator, auto parts, solar water heaters, medical equipment and so on, we see the bright surface of the stainless steel products.
Also,BA finish is widely used in required a high degree of reflectivity of more home appliances.small mirrors,kitchen equipment,Washing machine inner cylinder, elevator door decoration, building decoration and other fields etc.
Available produced grade
|
牌号
Grade
|
C(%)
|
Si(%)
|
Mn(%)
|
P(%)
|
S(%)
|
Cr(%)
|
Ni(%)
|
N(%)
|
|
奥氏体
Austenitic
|
201
|
≤0.15
|
≤1.00
|
5.50-7.50
|
≤0.06
|
≤0.03
|
16.00-18.00
|
0.50-1.00
|
≤0.25
|
|
304
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.045
|
≤0.03
|
18.00-20.00
|
8.00-10.50
|
≤1.00
|
|
316L
|
≤0.03
|
≤1.00
|
≤2.00
|
≤0.045
|
≤0.03
|
16.00-18.00
|
10.00-14.00
|
≤1.00
|
|
|
|
|
|
|
|
|
|
|
|
|
铁素体
Ferritic
|
430
|
≤0.12
|
≤1.00
|
≤1.00
|
≤0.04
|
≤0.03
|
16.00-18.00
|
0.50-0.75
|
-
|
|
|
|
|
|
|
|
|
|
|
|
|
马氏体
Martensitic
|
410
|
≤0.15
|
≤1.00
|
≤1.00
|
≤0.035
|
≤0.03
|
11.50-13.50
|
≤0.60
|
-
|
|
410S
|
≤0.08
|
≤1.00
|
≤1.00
|
≤0.035
|
≤0.03
|
11.50-13.50
|
≤0.60
|
-
|
|
牌号
Grade
|
Tensile Strength
(σb/Mpa)
|
Yield Strength
(σ0.2/Mpa)
|
Elongation
( δ5/%)
|
Rate of reduction in area
(ψ/%)
|
Density
(g/cm³）
|
Hardness
(HB / HRB / HV)
|
|
奥氏体
Austenitic
|
201
|
≥520
|
≥275
|
50-60
|
≥60
|
7.93
|
≤187HB / ≤90HRB / ≤200HV
|
|
304
|
515-1035
|
≥205
|
≥40
|
≥60
|
7.93
|
≤201HBW / ≤92HRB / ≤210HV
|
|
316L
|
≥480
|
≥177
|
≥40
|
≥60
|
7.98
|
≤187HB / ≤90HRB / ≤200HV
|
|
|
|
|
|
|
|
|
|
|
铁素体
Ferritic
|
430
|
≥450
|
≥205
|
≥22
|
-
|
7.75
|
≤183HBW / ≤89HRB / ≤200HV
|
|
|
|
|
|
|
|
|
|
|
马氏体
Martensitic
|
410
|
≥440
|
≥205
|
≥20
|
≥55
|
7.75
|
≤200HB / ≤210HV
|
|
410S
|
≥410
|
≥205
|
≥20
|
≥60
|
7.75
|
≤183HB
|
