321 stainless steel plate available as coil-cut and quarto material, with route-specific dimensions, NO.1 or 1D surface and required certificates coordinated with the buyer's cutting and fabrication requirements.
DIMENSIONS & DELIVERY
321 Plate supply range
Choose the production route that matches your order. The quotation confirms the grade, thickness, width, surface and delivery combination.
2000 / 2438 / 3000 / 3048 / 4000 / 6000 mm; other cut lengths to order
Mill surface
No.1 / 1D
Sheye surface processing
No.4 / HL / No.3 / SB / 6K / 8K; special finishes by agreement
Specification routes
GB/T 4237 · GB/T 24511 · GB/T 713, 2023 series (applicable part to be agreed) · ASTM / ASME (specification to be agreed) · EN (standard and part to be agreed) · JIS G4304 · IS 6911:2017
State the exact standard number, applicable part, edition and grade in your enquiry. The quotation and mill test certificate identify the agreed specification; a reference list does not certify every combination.
Quarto plate
Quarto plate supply specifications
Thickness
6–150 mm
Maximum width
4200 mm
Regular stock thickness
16–50 mm
Length
Length and cutting layout to be confirmed with the quotation
Mill surface
No.1 / 1D
Specification routes
GB/T 4237 · GB/T 24511 · ASTM / ASME (specification to be agreed) · EN (standard and part to be agreed) · JIS G4304 · IS 6911:2017 · GB/T 713, 2023 series (applicable part to be agreed)
State the exact standard number, applicable part, edition and grade in your enquiry. The quotation and mill test certificate identify the agreed specification; a reference list does not certify every combination.
16–50 mm is the regular stock thickness range. Current grade, width, quantity and dispatch availability are confirmed at quotation.
Mill surface codes and decorative finish names are confirmed against the agreed description or sample. Additional processing depends on the grade, thickness and required finish.
PRODUCT DETAILS
Specify 321 Stainless Steel Plate for your process
Choose the required production route
Sheye Metal offers 321 stainless steel plate cut from hot-rolled coil and as separately rolled quarto plate. State the required route and full material standard in the inquiry. If a project drawing specifies the product form or delivery condition, include that requirement so the proposed supply can be reviewed before ordering.
Plan cutting and surface condition
Give the delivered thickness, width and length, identifying any allowance for further cutting or machining. NO.1 or 1D is the starting supply surface basis. Requests for an additional finish on coil-cut plate can be reviewed with the dimensions and intended fabrication sequence; quarto dimensions remain a separate supply range.
Specify plate inspection
Include dimensional tolerances, flatness, edge condition and any surface acceptance requirements. State the inspection certificate, material identification and additional tests required by the purchaser. List each size and quantity separately, then agree packaging and destination handling needs. Final confirmation should identify the exact grade, route and delivered plate requirements for every order item.
PRACTICAL BUYING QUESTIONS
Buying 321 Plate for Welded Equipment
Why should the 321 plate order name the production route?
Plate cut from hot-rolled coil and separately rolled quarto plate are distinct supply routes. The route, thickness and delivery condition can affect the applicable requirements and the interpretation of test results. State the governing specification, dimensional acceptance and traceability together with the grade. If the design requires 321H or documented dual certification, identify that requirement separately; the 321 name alone is insufficient.
Which inspection details matter for thick welded or hot-service 321 plate?
Connect the material condition to the proposed welding and thermal history. Where stabilization records, impact testing or intergranular-corrosion testing are required by the project, define the method, condition and acceptance criteria before ordering. Pressure-service approval follows the governing design rules and product specification, not a general datasheet temperature. A higher room-temperature strength result does not independently establish creep resistance or qualify the finished welded assembly.
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