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Stainless Steel
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Stainless Steel Processing Service

Stainless Steel Laser Welding Service

Request drawing-driven stainless steel laser welding for joints, seams, brackets and fit-up interfaces. Material grade, dimensions, tolerance, quantity and inspection requirements are reviewed together before the quotation is issued.

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Procurement Promise

Fewer decorative images, more usable RFQ information

This page is structured for buyers who need a quotation quickly. Send grade, thickness, drawing revision, quantity, critical dimensions, edge condition and inspection needs together so the Laser Welding route, tooling, tolerance approach and secondary operations can be reviewed before the quote is released.

304 / 304L / 316 / 316L priority DXF / DWG / STEP / PDF review Tolerance confirmed by drawing
Common grades304/304L · 316/316L201, 430 and duplex grades by project review
Starting formsSheet & plateFlat products are the standard quoting basis
Thickness guide0.5–20 mm typical RFQ rangeThicker material requires capability confirmation
Sheet envelopeUp to 1500 × 3000 mm typical basisLarger format is reviewed before quotation
Tolerance guideFrom ±0.10 mm on suitable geometryFinal tolerance is drawing- and thickness-dependent
Edge conditionAs-cut · deburred · edge breakCoolant and chip control are preferred for clean, burr-managed laser welding supports clean, controlled stainless joints where heat input, purge and distortion are specified. edges
MOQPrototype to batch quantityCommercial minimum depends on nesting and setup
Lead timeConfirmed after drawing reviewMaterial, quantity and secondary operations control schedule

Decision Summary

When stainless steel Laser Welding is the right process

Use Laser Welding when stainless steel parts need controlled joints, seams, brackets and fit-up interfaces from solid or near-net blanks. Confirm material condition, tool access, tolerances and surface requirements before release.

Recommendation first

Use Laser Welding welding for clean stainless steel joints where heat input, purge, penetration and cosmetic acceptance must be controlled. Confirm joint design, filler, shielding, distortion limits and inspection method before release.

Best for

Repeatable hole patterns

Good fit for multiple contours, holes, slots, tabs and nested parts where the profile can be cut directly from flat stainless material.

Key trade-off

Tool speed, feed and coolant

Laser Welding is repeatable when fixturing, tool paths, coolant and inspection routines are controlled. Confirm tool wear, burr control and critical dimensions before release.

Alternative process

Choose by the constraint

CNC turning suits concentric shafts; laser or waterjet prepares blanks; grinding may follow for tighter surface or size requirements.

Material Matrix

Grades, thicknesses and surface conditions commonly quoted

The matrix below is a practical RFQ starting point rather than a guaranteed capability statement. Actual process route, equipment envelope and finish protection are confirmed against the drawing and current availability.

Core grades304/304L and 316/316L

These grades cover a large share of fabricated stainless panels, brackets, covers and equipment parts.

Starting formCold-rolled sheet & hot-rolled plate

Choose the starting surface according to cosmetic, corrosion and downstream fabrication requirements.

Protection optionsFilm, paper interleave or clean packing

Cosmetic faces should be identified on the drawing so handling and packing can be planned before cutting.

Grade / family Starting form Typical thickness guide Common surface RFQ status Notes for Laser Welding
304 / 304L Cold-rolled sheet 0.5–3.0 mm 2B, BA, No.4, protected surface Regularly sourced Coolant, chip evacuation and tool-life controls are specified where clean pockets, edges and surfaces are required.
304 / 304L Plate 3–20 mm No.1 / pickled or project finish Thickness review Edge quality, surface or edge variation and achievable tolerance become more thickness-sensitive as plate gets heavier.
316 / 316L Cold-rolled sheet 0.5–3.0 mm 2B, BA, No.4, protected surface Regularly sourced Suitable where improved corrosion resistance is required; cosmetic faces should be called out on the drawing.
316 / 316L Plate 3–20 mm No.1 / pickled or project finish Thickness review Confirm edge acceptance, flatness and any post-cut passivation or finishing requirement before order release.
201 / 430 Sheet 0.5–6.0 mm 2B, BA, No.4 Project review Grade selection should be based on corrosion environment, forming demand and magnetic requirement rather than price alone.
Duplex 2205 Sheet / plate 1–16 mm 2B or No.1 where available Project-specific Material sourcing, process parameters and downstream welding requirements should be reviewed together.

Important: the listed ranges are quoting guidance, not a claim of real-time stock or a guaranteed machine limit. Final availability and process capability must be confirmed on the approved quotation.

Processing Capability

From drawing review to Laser Welding inspection

A useful capability statement connects material condition, geometry, tooling, tolerance, inspection method and file revision so the buyer knows what will actually be accepted.

01Drawing review

Confirm revision, material, thickness, critical dimensions, cosmetic faces and acceptance notes.

02Nesting & CAM

Review part orientation, web spacing, kerf compensation and sheet utilization before release.

03Laser Welding

Select parameters and process support according to grade, thickness and required edge condition.

04Edge finishing

Keep as-cut edges or apply deburring / edge break where the drawing or handling requirement calls for it.

05Inspection & packing

Verify defined features, protect cosmetic surfaces and package parts according to shipment needs.

Process item Method / equipment class Typical quoting envelope Expected result Inspection / control
Laser Welding welding / precision joining Laser Welding welding cell with purge and fixture control 0.5–10 mm sheet or tube; joint design, purge and filler confirmed per part Controlled welded joint with defined penetration and cosmetic acceptance First-piece and final dimensional checks against approved drawing
Welded stainless assembly Workholding, tool paths and datum scheme Grade, thickness and tooling dependent Laser Welding supports pockets, faces, slots and 3D profiles; confirm tool access and datum strategy before release. Pocket sizes, datum locations and surface finish checked with gauges and the approved drawing.
Small radii / tight transitions Geometry-specific parameter review Features close to the process limit require review Reduces variation in the critical profile when tooling and support are controlled Pocket sizes, datum locations and surface finish checked with gauges and the approved drawing.
Deburring / edge break Mechanical or manual finishing as specified Selected parts or full lot Removes loose burrs and protects handling surfaces before assembly Visual and tactile inspection; dimension impact considered on critical edges
Drawing data CAM + engineering review DXF / DWG preferred for 2D; STEP / PDF for verification One controlled geometry source with dimensions and notes cross-checked before production Revision control and file-name check at order release

Capability note: final machine envelope, tolerance and secondary operation availability must be stated on the quotation. Do not treat the general guidance on this page as an order acceptance without drawing review.

Applications & Limits

Match the process to the part, surface and service environment

Laser Welding is a manufacturing process, not a substitute for material selection. The grade must still be chosen for corrosion, temperature, cleaning, strength and fabrication requirements.

Equipment panels & enclosures

Laser Welding supports pockets, faces, slots and 3D profiles; confirm tool access and datum strategy before release.

Food & hygienic equipment parts

316L or other suitable grades may be selected where corrosion and cleaning demands are higher. Edge and surface finishing still need separate specification.

Architectural & decorative panels

Good for repeated patterns and custom openings. Cosmetic face, film direction and scratch protection should be identified before nesting.

Brackets, shims & machine guards

Laser Welding supports controlled production when workholding, tooling and inspection are defined in the RFQ.

Electrical & instrument housings

Use Laser Welding welding for clean stainless steel joints where heat input, purge, penetration and cosmetic acceptance must be controlled. Confirm joint design, filler, shielding, distortion limits and inspection method before release.

Prototype-to-production parts

The same digital geometry can support early prototypes and later batch production, provided revision control and material condition remain consistent.

Limitations that should be reviewed before RFQ release

Pockets / slots / edges
Pocket sizes, datum locations and surface finish checked with gauges and the approved drawing.
Zero heat-affected-zone requirements
Laser Welding is a mechanical process. Confirm tooling access, forming limits and downstream operations before selecting the process.
High load or tight forming requirements
As part size and wall thickness increase, forming load, springback, tool access and inspection capability become more important. Define acceptance criteria before quotation.
Cosmetic surfaces where scratches are unacceptable
Specify the visible face, protective film requirement, handling method and packing expectation. Cutting quality alone does not control cosmetic handling damage.
Tight final dimensions after forming or assembly
laser welding supports clean, controlled stainless joints where heat input, purge and distortion are specified. blank dimensions do not automatically guarantee final assembly dimensions. Forming and welding distortion must be included in the overall tolerance strategy.

Tolerance, QA & Acceptance

Define what is measured, how it is measured and what documents are required

A tolerance value only becomes useful when it is connected to the material thickness, feature type, inspection method and drawing revision. Critical dimensions should be identified rather than applying the tightest tolerance to every cut edge.

QA 01Material identity

Confirm grade, thickness, heat/lot data and requested MTC before production.

QA 02Revision control

Match DXF/DWG geometry to the dimensioned PDF and approved revision.

QA 03First-piece check

Measure the critical dimensions defined for production release.

QA 04In-process check

Monitor edge condition, repeat features and surface protection during the run.

QA 05Final acceptance

Complete final checks and attach the agreed material / inspection documents.

Typical RFQ process and tolerance starting points

Material / feature Starting guidance What changes it
0.5–3 mm sheet profile Approx. ±0.10 to ±0.20 mm Part size, contour complexity, thermal concentration and surface condition
3–10 mm plate profile Approx. ±0.15 to ±0.30 mm Thickness, edge taper, part size and cut sequence
10–20 mm plate profile Approx. ±0.25 to ±0.50 mm Thickness, tooling or pass method, surface or edge variation acceptance and geometry
Pockets / slots / edges Review individually Feature size relative to thickness, hole roundness and measurement method
Critical datum / feature Drawing-specific Datum strategy, overall part size and inspection capability

Inspection and document package

Dimensional inspection report

Critical features can be recorded with the agreed sampling plan and drawing revision.

Material Test Certificate (MTC)

Request the applicable material certificate and traceability requirement in the RFQ.

Certificate of Conformance

Available only when it is included in the quotation and order document package.

Visual / edge acceptance

Define burr, surface or edge variation, oxide, scratch and cosmetic face requirements when they matter to use or appearance.

Inspection method

Calipers, micrometers, pin gauges, height gauges, fixtures or CMM may be selected according to feature type and required uncertainty.

Tolerance disclaimer: these ranges are general RFQ guidance, not a guaranteed capability for every part. The accepted tolerance is the value stated on the reviewed quotation and approved drawing.

Standards & Equivalence

Use the requested material standard and grade designation on the RFQ

Equivalent grade names are useful for communication, but they are not automatically interchangeable. Chemistry, mechanical properties, product form, heat treatment and the governing product standard must align with the purchase requirement.

Common grade UNS EN designation JIS Common GB designation Typical flat-product standards
304 S30400 1.4301 SUS304 06Cr19Ni10 ASTM A240/A240M, EN 10088-2, JIS G4304/G4305, GB/T 4237 or GB/T 3280 as applicable
304L S30403 1.4307 SUS304L 022Cr19Ni10 Product standard must match the required form and delivery condition
316 S31600 1.4401 SUS316 06Cr17Ni12Mo2 Verify molybdenum-bearing grade requirement and requested certification
316L S31603 1.4404 SUS316L 022Cr17Ni12Mo2 Commonly specified where low carbon content supports welding / corrosion requirements
430 S43000 1.4016 SUS430 10Cr17 Ferritic stainless; application environment and forming demand should be checked
Duplex 2205 S32205 / S31803 1.4462 SUS329J3L family 022Cr23Ni5Mo3N family Confirm exact chemistry / strength requirements and product standard before substitution
  • ASTM A240/A240MChromium and chromium-nickel stainless steel plate, sheet and strip for pressure vessels and general applications.
  • EN 10088-2Technical delivery conditions for stainless steel sheet/plate and strip for general purposes.
  • JIS G4304 / JIS G4305Hot-rolled and cold-rolled stainless steel plate, sheet and strip.
  • GB/T 4237 / GB/T 3280Hot-rolled and cold-rolled stainless steel plate, sheet and strip.
  • ISO 9013Thermal cutting quality classification can be referenced where the drawing or purchase specification calls for it.

Equivalence is a starting point, not a substitution approval

Do not substitute one designation for another only because the names appear in the same row.

Confirm chemistry, mechanical properties, corrosion requirement, product form, thickness range, surface condition and certification against the governing purchase standard.

Worked Example

How a 316L mounting-plate RFQ can be converted into a Laser Welding plan

This is a worked engineering example, not a named customer claim. It shows the information that should be resolved before a laser welding supports clean, controlled stainless joints where heat input, purge and distortion are specified. stainless part is released for production.

Example RFQ inputs

  • PartControl cabinet panel
  • Material316L stainless sheet
  • Thickness2.0 mm
  • Blank sizeApprox. 650 × 420 mm
  • Quantity120 pcs
  • Surface2B, one cosmetic face protected
  • Critical dimsSelected features at ±0.15 mm
  • FilesDXF + dimensioned PDF
Problem

Multiple slots, holes and perimeter features in one flat part

Laser Welding removes material with programmed cutters; confirm workholding, tool access, datum scheme and chip control before release.

Constraints

Cosmetic face, critical hole locations and downstream bending

The drawing should identify the visible face, bend relationship and which dimensions remain critical after later forming operations.

Decision

Laser welding cell + focal control + edge cleanup

Use nitrogen for a cleaner stainless edge, preserve surface protection according to the approved process plan and deburr only where the drawing or handling requirement needs it.

Inspection

First-piece verification focused on critical features

Check selected hole / slot sizes, feature positions, overall profile and cosmetic handling before the batch is fully released.

Release

Quote and order lock the final acceptance criteria

Production should follow the approved revision, accepted tolerance, material certification requirement, edge condition, packing method and agreed inspection record.

For publication as a first-party case study, replace this worked example with a verified order or project record and only state outcomes that can be supported by internal evidence and permission.

Technical Basis & Review

Standards, process evidence and document control

Material-standard facts should come from the governing standards, while process capability should come from verified equipment, inspection records and approved internal data. Recommendations should be separated from guaranteed order requirements.

Reference basis used for this page

  • ASTM A240/A240M — stainless steel plate, sheet and strip product requirements where applicable.
  • EN 10088-2 — technical delivery conditions for stainless steel sheet/plate and strip for general purposes.
  • JIS G4304 / JIS G4305 — hot-rolled and cold-rolled stainless steel plate, sheet and strip.
  • GB/T 4237 / GB/T 3280 — hot-rolled and cold-rolled stainless steel plate, sheet and strip.
  • ISO 9013 — thermal cut quality classification where invoked by the drawing or purchase specification.
  • Company capability evidence — machine envelope, assist-gas practice, cut samples, inspection records and quoted tolerance must be verified internally before indexing.

Page ownership

Content ownerTechnical Sales / Engineering Content
Technical reviewManufacturing Engineering / QA
Review triggerMachine, thickness envelope, tolerance, material standard or inspection-process change
Page statusCapability/evidence-gated service page
Update log: 2026-09-10 — initial T07 build for stainless steel Laser Welding service RFQ intent.

Technical RFQ

Request a stainless steel Laser Welding quote

Send the drawing and the commercial requirements together. The more complete the input, the faster the process route and acceptance criteria can be reviewed.

  • Grade, product standard and thickness
  • DXF / DWG / STEP plus dimensioned PDF
  • Quantity, prototype/batch requirement and destination
  • Critical dimensions and any GD&T / datum requirements
  • Edge condition, cosmetic face and protective film need
  • Secondary operations such as deburring, forming or finishing
  • MTC, inspection report, CoC or traceability requirement
  • Required delivery date and packaging notes
File upload: include the latest drawing revision only. Avoid sending conflicting geometry files without a clear revision note.

Send your drawing and quote requirements

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