367
Dixon Sanitary 2014
800.789.1718
Technical
Austenitic Stainless Steel Chemistry
Element
C
Mn
P
S
Si
Cr
Ni
Mo
304
1
.08
2.00
0.045
0.030
1.00
18.0-20.0 8.0-10.0
316
L
1
.03
2.00
0.045
0.030
1.00
16.0-18.0 10.0-14.0 2.0-3.0
316
L
BPE
2
.03
2.00
0.045 0.05 - 0.17
1.00
16.0-18.0 10.0-14.0 2.0-3.0
CF-8
3
.08
1.50
0.04
0.04
2.00
18.0-21.0 8.0-11.0
CF-8M
3
.08
1.50
0.04
0.04
2.00
18.0-21.0 9.0-12.0
2.0-3.0
1
AISI specifications for wrought material
2
ASME BPE 2009
3
ASTM A743
•
Percentages are maximums unless a range is specified
Finish Information
Polished Finish Specification
Finish Designations for Tubing and Fittings
Finish Number
Finish Conditions
1
Mill Finish (bright annealed, pickled, sand blast or tumbled)
3
Polished 180 grit inside diameter (ID) only
5
Polished 150 grit outside diameter (OD) only
7
Polished 180 grit outside/inside diameter (OD/ID)
3
A
Polished 150 grit outside (OD), 180 grit inside diameter (ID)
•
180
grit = 25R
a
microinch = 0.5R
a
micron (minimum)
Process
R
a
microinch R
a
micron
ISO
BPE
3
A
150
grit
30 - 35 0.75 - 0.875
N6
150
grit + Electropolish
12 - 20
0.3 - 0.5
180
grit
20 - 25
0.5 - 0.625
XX
180
grit + Electropolish
10 - 16
0.25 - 0.4
240
grit
15 - 20
0.375 - 0.5
N5
SF1
PL
240
grit + Electropolish
8 - 12
0.2 - 0.3
320
grit
8 - 12
0.2 - 0.3
N4
320
grit + Electropolish
6 - 12
0.15 - 0.3
SF4
PM
Specifications are "best fit" to the process. Other methods may be used to achive the desired results.
Y