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SS 316 and Crude Oil: Chemical Resistance

Stainless steel 1.4401 (AISI 316)

Rating

Concentration20 °C50 °CRemark
100 %A*–

* estimated rating, given in the source without a temperature

Materials rated A or B at 20 °C

Based on the row for 100 %, 20 °C.

Thermoplastics
PP A, PVC Rigid A, LDPE A, Nylon (PA) A, Acetal (POM) A, Polysulfone A, PETG A
Fluoropolymers
PTFE A, PVDF A, FEP A
Elastomers
Viton (FPM) A
Metals
SS 304 A, Aluminium B

About SS 316

Stainless steel 316 (1.4401) contains molybdenum, which improves resistance to chlorides over 304. Hydrochloric acid and other halide acids still cause pitting.

Rating scale

A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.

About this data

The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.

A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.