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Technical

Austenitic Stainless Steel Chemistry

Element C Mn P S Si Cr Ni Mo
304 1 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-10.0
316L 1 0.03 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
316L 0.03 2.00 0.045 0.05 - 0.17 1.00 16.0-18.0 10.0-14.0 2.0-3.0
BPE 2
CF-8 3 0.08 1.50 0.04 0.04 2.00 18.0-21.0 8.0-11.0
CF-8M 3 0.08 1.50 0.04 0.04 2.00 18.0-21.0 9.0-12.0 2.0-3.0

1 AISI specifcations for wrought material
2 ASME BPE 2012
3 ASTM A743
• Percentages are maximums unless a range is specifed

Finish Information

BPE Surface Finish Requirements (Table SF-2.4-1)

Mechanically Polished ID and OD
Dixon Sanitary
Surface designation R Maximum High Purity code
a
ID µ-in. OD µ-in
SF0 no fnish requirement no fnish requirement
SF1 20 32 PL
SF2 25 32
SF3 30 32

Mechanically Polished OD and Electropolished ID
Surface designation R Maximum
a
ID µ-in. OD µ-in
SF4 15 32 PM
SF5 20 32
SF6 25 32

Finish Designations for Tubing and Fittings

Finish Number Finish Conditions
1 Mill Finish (bright annealed, pickled, sand blast or tumbled)
3 Polished 32R inside diameter (ID) only
a
5 Polished 150 grit outside diameter (OD) only
7 Polished 32R outside/inside diameter (OD/ID)
a
3A Polished 150 grit outside (OD), 32R inside diameter (ID)
a

Z 300 800.789.1718 Dixon Sanitary 2014