CUT-TO-SIZE METAL

304 & 316 Stainless Steel Plate

Request 304 or 316 stainless steel plate for machined and fabricated blanks. Include thickness, width, length, finish and any critical flatness requirements.

Inches or millimetersQuoted for your project
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Not sure? Choose “Please advise”. Grade, condition and supply are confirmed in your quote.

Start with a common size3 editable configurations · mm / inches

Request these configurations from SteelRaw, or enter your own dimensions. Reference sizes with example cuts, subject to availability and quote review.

  • 304 • 6 mm plate

    Grade: 304 · Condition: Annealed

    Thickness 6 mm · Width 200 mm · Length 300 mm

    ≈ Thickness 0.2362 in · Width 7.874 in · Length 11.811 in

    Plate blank for a drilled fixture; holes and machining are separate requirements.

    Thickness is a catalog reference. Panel width and length are illustrative requested cuts; finish, tolerances and supply require review.

  • 304 • 10 mm plate

    Grade: 304 · Condition: Annealed

    Thickness 10 mm · Width 300 mm · Length 300 mm

    ≈ Thickness 0.3937 in · Width 11.811 in · Length 11.811 in

    Square machining blank; include finished dimensions and machining allowance.

    Thickness is a catalog reference. Panel width and length are illustrative requested cuts; finish, tolerances and supply require review.

  • 316 • 12 mm plate

    Grade: 316 · Condition: Annealed

    Thickness 12 mm · Width 300 mm · Length 600 mm

    ≈ Thickness 0.4724 in · Width 11.811 in · Length 23.622 in

    Larger plate blank for a 316 fabrication drawing; specify tolerance and surface needs.

    Thickness is a catalog reference. Panel width and length are illustrative requested cuts; finish, tolerances and supply require review.

Size references & supply notes

Supplier references document section sizes, not SteelRaw inventory. Cut lengths are editable examples; sheet and plate widths may also be example cuts. Grade, condition, tolerances, finish and delivery are confirmed in your quote. Inch equivalents are rounded.

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Set your dimensions

Decimals or fractions. Switch units without re-entering sizes.

Requested dimensions and availability are reviewed before quoting.

Condition, finish & part notes Optional +

Material condition and finish are confirmed during review.

Estimated material weight

Pricing after review · No payment required

How your quote works +

Add one or more cuts, share your requirements and tell us where to deliver. We review material, cutting and freight before sending a quote.

Dimensions & material weight +

Dimensions describe your requested section and cut length. Standard sections and feasible cuts are confirmed during review. Include any tolerance in project details. Weight is theoretical, uses ideal section geometry and excludes corner radii, packaging and cutting loss. The preview is a schematic, not a manufacturing drawing.

PROJECT CONTENTS

Your cut list

Cut lines are saved in this browser.
Only added pieces are included in your request.

What to include in your request

State whether surface appearance or machining allowance controls the stock choice. A product image cannot establish a finish designation.

Material
Stainless steel
Profile
Plate
Grade references
304 / 316 — confirm grade and condition in the quote
Dimensions
Thickness, width, length
Units
Inches or millimeters; decimals or fractions
Supply & cutting
Subject to review; no live-stock or tolerance guarantee

Theoretical geometry only. Actual dimensions, tolerances and cutting require supplier review.

Distinguish a base blank from a completed base

A stainless baseplate may carry feet, brackets, locating pins or a removable machine component. Its raw rectangle is only the starting envelope. Hole locations, contact pads and recessed features determine how the finished base actually works. A useful comparison therefore includes both the raw blank and the final part drawing. For example, a plate under four adjustable feet may have different surface requirements from a plate that directly locates a precision assembly across its entire upper face.

Treat thickness, flatness and parallelism separately

Thickness describes the separation between the two broad surfaces at a measurement location. Flatness describes the form of an individual surface, while parallelism describes the relationship between surfaces or a defined reference. A plate can meet one requirement without establishing the others. For a mounting base, decide whether the assembly contacts the whole face or only selected pads. That distinction helps the machining plan focus on functional areas and prevents a general stock-thickness request from being mistaken for a finished surface specification.

Compare blanks by the features they contain

Plate suits a broad component with features distributed across its face. Flat bar is a useful alternative for a narrow rectangular part, and square bar may suit a compact block. These choices change which surfaces begin as stock faces and which must be created later. Keep the required 304 or 316 grade attached to the part drawing while comparing starting forms. Changing the blank route should not silently change the material or remove a surface requirement that the final assembly still depends on.

Compare stainless machining blanks

Compare stainless machining blanks
Catalog choiceUseful starting pointFunctional detail
Stainless plateBroad bases with distributed featuresContact areas and machining allowance
Stainless flat barNarrow mounting or spacer partsRetained stock faces and edge condition
Stainless square barCompact blocks with equal sidesDatum faces and clamping sequence
PUT THE DIMENSIONS INTO PRACTICE

Example: a four-piece plate request

Use this illustrative cut line to see how the fields work. It is a dimensional example, not a stock listing or a recommended section for a particular load.

Thickness0.25 in6.35 mm
Width6 in152.4 mm
Length12 in304.8 mm

This example is a 1/4 in thick blank with a 6 × 12 in face. Its ideal volume is 18 cubic inches. If 6 × 12 in describes the finished component, choose raw dimensions using the machining plan rather than treating this example as an allowance recommendation.

How the theoretical weight is calculated

Cross-sectional area × cut length × reference density = estimated material weight.

Material in this example
Stainless steel
Reference for this example
304 grade reference
Density used
7,900 kg/m³
One piece, approximately
5.14 lb / 2.33 kg
Four pieces, approximately
20.55 lb / 9.32 kg

Calculated from ideal geometry and a reference density. Actual section, alloy, tolerances, cutting loss and packaging can change the result. This is not a shipping weight or a load rating.

On your own cut list, add a part reference and quantity to each distinct size. Put extra operations such as holes, miters, threads or finish work on the drawing, then keep that drawing reference with the relevant line.

Calculate the weight of your own dimensions →
COMMON QUESTIONS · 10 ANSWERS

304 & 316 Stainless Steel Plate questions

Is stainless plate flat enough to use as a precision reference surface?

Do not assume so. Specify flatness, thickness tolerance and any grinding or machining scope on the drawing. A cut blank alone does not establish those properties.

Can 316 plate replace 304 without changing the request?

Record the intended grade explicitly. A substitution may affect material requirements, fabrication and cost, and should be reviewed instead of silently changing the drawing.

Are drilled holes included with a stainless plate blank?

No holes are defined by the rectangular size fields. Attach hole positions, diameters, tolerances and any threads for a separate scope review.

What does parallelism add beyond a flatness requirement?

Flatness concerns the form of one surface. Parallelism relates a surface to a defined reference, so it addresses a different part of the geometry. A plate with individually acceptable faces still needs the required relationship between them specified when both faces locate the assembly.

What is the difference between a datum and a presentation face?

A datum is part of the reference system used to locate or assess features. A presentation face is important for appearance. One surface can serve both roles, but that must be clear because a cosmetic description alone does not define a dimensional reference.

How should a plate with recessed fasteners be described?

Show each recess, its associated hole and the surface from which its depth is measured. Include the mating fastener or drawing callout where relevant. Overall plate thickness and a bolt-circle sketch do not fully describe a finished countersunk or counterbored mounting feature.

Should an assembly drawing replace the individual plate drawing?

Use the assembly drawing to explain context and the part drawing to define the plate itself. The assembly may hide a recess, underside feature or locating surface. Keeping both views available helps distinguish the purchased blank from the completed component and its installed function.

Can only selected pads on the plate be machined?

That is a design and process choice. If only certain areas contact the assembly, identify them and define their required relationship on the drawing. Do not assume that machining isolated pads establishes the condition of the surrounding stock surface or every other feature.

How do I compare two proposed blank sizes fairly?

Compare the complete plan: required material, allowance on each machined surface, workholding and the number of parts produced. A smaller rectangle may reduce stock while leaving inadequate process allowance. The useful comparison is between feasible manufacturing blanks for the same finished drawing.

What dimensions do I need to request 304 & 316 stainless steel plate?

Provide thickness, width, length, plus quantity for each size. Use inches or millimeters consistently. Add the required grade, condition, finish and any critical tolerances; attach a drawing for details the standard fields cannot describe.

Turn your specification into a clear request.

Include the material, dimensions, quantity and critical requirements. Availability, supplied condition, cutting and delivery are confirmed in a reviewed quote.

Technical references

Background guidance; these references do not certify the material offered for a particular request.