What it is
Thin flat rolled product below the plate threshold, usually cold rolled and annealed, supplied flat or in coil and held to closer thickness and flatness tolerances than plate.
- Typical dimensions
- Below 0.1875 inch down to roughly 0.010 inch.
- Also known as
- sheets, coil, flat rolled
Suppliers
Grouped by what they actually are. A mill and a distributor answer different needs.
Mills and producers 4
Companies that manufacture this form. Mill direct means longer lead times and mill minimums, with full melt traceability.
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ATI Inc. VerifiedUS melted
Flat rolled specialty steel as sheet and coil. MELT ORIGIN re-confirmed 2026-07-30 and corroborated rather than superseded: this is an integrated domestic producer that melts its own material. It remains a per-heat question regardless. DFARS 252.225-7009 status is settled on the mill certificate for the specific heat, not by the company record.
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Cleveland-Cliffs ReportedUS melted
More than fifty stainless grades produced. Melt origin recorded as US on the strength of an integrated domestic producer that describes itself as spanning iron ore mining through post-consumer recycling. The deep-dive did NOT establish individual plant locations or whether the route is blast furnace, EAF or DRI, so treat DFARS 252.225-7009 status as a per-heat question to be confirmed on the mill certificate rather than as settled by this record.
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North American Stainless ReportedUS melted
Integrated melting through finishing at Ghent, Kentucky. MELT ORIGIN re-confirmed 2026-07-30 and corroborated rather than superseded: this is an integrated domestic producer that melts its own material. It remains a per-heat question regardless. DFARS 252.225-7009 status is settled on the mill certificate for the specific heat, not by the company record.
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Outokumpu Stainless USA VerifiedUS melted
Melt shop and cold rolling mill at Calvert, Alabama.
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Distributors and stockists 8
Companies that hold inventory for resale. Faster and available in small quantities, at a markup. Ask what mill the material came from if traceability matters.
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Alro Steel Reported
Distributor stock. Establish grade and mill certification per heat rather than from the catalog listing.
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EFINEA Metals VerifiedAS910017-4PH, 15-5PH
Stocked as precipitation hardening stainless only. EFINEA lists 17-4PH and 15-5PH under high strength stainless; it is not a source for 300 series stainless.
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Olympic Steel Verified
Stainless sheet from the flat-rolled range.
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Penn Stainless Products Verified
Sheet in over thirty grades spanning 300 and 400 series, duplex, 17-4PH and high temperature grades.
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Rolled Alloys Reported
Sheet within the specialty alloy catalogue. Not confirmed against a company stock list.
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Ryerson Inferred
Distributor stock. Establish grade and mill certification per heat rather than from the catalog listing.
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Service Steel Aerospace Verified17-4PH, 15-5PH
PH stainless sheet from five US stocking locations.
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TW Metals Reported
Distributor stock. Establish grade and mill certification per heat rather than from the catalog listing.
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