Name: UNS S32615 Sheet | Acid-Resistant Cladding & Lining Sheets
Brand: Solitaire Overseas

UNS S32615 Sheet

UNS S32615 Sheet is an austenitic stainless product that is a thin sheet of fabricated austenitic steel that comes in sheets in high silicon and is marketed by Solitaire Overseas as a material that is excellent in corrosion resistance in thin sheets.

As outlined in theUNS S32615 Specifications, the large silicon level in the alloy (4.860) is developed into a protective level of silica-based oxide film which is truly effective in passivating the surface against sulfuric acid and hydrochloric acid intrusion. These sheets are also supplied in solution-annealed form in order to provide ideal corrosion service, and are extensively utilized in lining, chemical plant cladding, and creation of acid resistant enclosures, panels, and formed elements.

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UNS S32615 Sheet Applications

The high-silicon and copper chemistry of UNS S32615 makes it the preferred alloy across the following industries and services:

Tank and vessel interior linings handling concentrated and dilute sulfuric acid.
Chemical plant cladding, splash guards, and acid-resistant enclosures.
Formed trays, baffles, and screen panels in corrosive media handling equipment.
Pharmaceutical equipment panels requiring high chemical purity and resistance.
Acid-resistant roofing and cladding panels for industrial chemical facilities.
Fabricated pickled and passivated components for metal surface treatment plants.
Custom chemical dosing skid panels and enclosure sheets for process plants.

Specifications of UNS S32615 Sheet

Parameter	Details
Grade	UNS S32615
Product Form	UNS S32615 Sheet
Standard	ASTM A312 / ASME SA-312 / ASTM A213
Applicable Spec	ASTM A999, ASTM A959
Max Temp (Mechanical)	990 °C
Max Temp (Corrosion)	410 °C
PREN	21
Heat Treatment	Solution Annealed 1050–1150°C + Water Quench
Density	7.6 g/cm³
Hardness	170 HB

Chemical Composition of UNS S32615 Sheet

The table below details the elemental composition of UNS S32615 in accordance with ASTM A959 and UNS designation requirements.

Element	Symbol	Min (%)	Max (%)
Carbon	C	—	0.070
Silicon	Si	4.800	6.000
Manganese	Mn	—	2.000
Phosphorus	P	—	0.045
Sulfur	S	—	0.030
Chromium	Cr	16.500	19.500
Nickel	Ni	19.000	22.000
Copper	Cu	1.500	2.500
Molybdenum	Mo	0.300	1.500
Iron	Fe	Balance	—

Mechanical Properties of UNS S32615 Sheet

UNS S32615 achieves its mechanical performance through alloying and cold working. The alloy cannot be hardened by heat treatment; solution annealing at 1050–1150°C followed by water quenching is the standard heat treatment to restore optimum corrosion resistance.

Property	Value	Unit
Tensile Strength (UTS)	550 min / 620 typ	MPa
Yield Strength (0.2% Proof)	220 min / 250 typ	MPa
Elongation at Break	25 min / 28 typ	%
Reduction in Area	46	%
Brinell Hardness	170	HB
Elastic (Young's) Modulus	190	GPa
Shear Modulus	75	GPa
Poisson's Ratio	0.28	—
Fatigue Strength	180	MPa
Shear Strength	400	MPa

Solitaire Overseas supplies the full range of UNS S32615 products. Explore related grades below:

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