Description
Stainless Steel Sheet Metal Parts – Custom Fabrication Manufacturer India
Stainless Steel Fittings India manufactures precision custom stainless steel sheet metal parts including laser-cut components, CNC press-brake bent parts, welded SS fabrications, perforated panels, enclosures, covers, guards, trays, ducting components, and structural sheet metal assemblies in SS 304, SS 316, SS 316L, and SS 430. Our integrated sheet metal manufacturing capability — from raw material cutting through forming, welding, finishing, and assembly — serves electrical OEMs, EPC contractors, food processing equipment manufacturers, pharmaceutical equipment builders, and industrial product companies. Price: US$ 10.90/Kilogram
Product Overview – Stainless Steel Sheet Metal Parts
Stainless steel sheet metal fabrication transforms flat SS sheet stock into three-dimensional functional components through a combination of cutting, forming, joining, and finishing operations. Unlike stamped parts produced in high-volume press tools, sheet metal fabrication is suitable for low-to-medium volume production, large-format parts, and complex multi-feature components where dedicated stamping tooling investment is not economically justified.
Laser-Cut Stainless Steel Flat Parts & Profiles
Fibre laser cutting (up to 6 kW) of SS 304/316 sheet in thicknesses from 0.5 mm to 25 mm produces precision flat parts, profiles, blanks, flanges, gussets, cover plates, and structural brackets with ±0.1 mm dimensional accuracy and burr-free edges. No tooling required — ideal for prototype, small-batch, and custom parts. Laser-cut parts are used for inspection windows, machine guards, electrical panel components, logo cut-outs, architectural cladding inserts, and structural gussets.
CNC Press-Brake Bent SS Components
CNC press-brake bending of SS 304/316 sheet produces angles, channels, Z-sections, U-channels, box sections, and complex multi-bend profiles. Bend angle tolerances of ±0.5° and bend position tolerances of ±0.2 mm are achievable with CNC back-gauge control. Used for electrical panel frames, cable tray sections, duct flanges, machine guards, structural channels, equipment plinths, and architectural trim profiles. Springback compensation algorithms in CNC press brake controllers ensure accurate final bend angles in SS material.
Welded SS Sheet Metal Enclosures & Boxes
TIG-welded stainless steel enclosures, junction boxes, control panels, instrument housings, inspection chambers, and fabricated tanks are assembled from laser-cut and press-braked SS components. Full-penetration welds with ground and polished external surfaces meet IP66/IP67 sealing standards when fitted with gaskets. Hygienic welded SS boxes for food/pharma with full internal weld-grinding and electropolishing achieve Ra < 0.8 μm crevice-free surfaces per EHEDG guidelines.
Perforated & Louvred SS Sheet Metal Panels
Perforated SS panels, louvred ventilation covers, mesh-backed frames, anti-climb perforated guards, and decorative architectural perforated cladding are manufactured from SS 304/316 sheet. Perforation patterns include round, square, slotted, hexagonal, and designer patterns with open areas from 20% to 65%. Frame-mounted perforated panels with rolled edges or angle frames are used for machine guards, ventilation screens, acoustic panels, and architectural facades.
SS Cable Trays, Trunkings & Ducting Components
Stainless steel cable trays, ladder trays, solid-bottom trays, cable trunking sections, conduit boxes, junction trays, and support channels are roll-formed and press-braked from SS 304/316 sheet. Used in offshore platforms, chemical plants, food processing, pharmaceutical facilities, and hazardous area electrical installations where standard GI or HDG cable management is inadequate. Dimensions per IEC 61537, available in 100 mm to 600 mm tray widths.
Custom Sheet Metal Assemblies & Sub-Assemblies
Multi-component SS sheet metal assemblies incorporating laser-cut parts, press-braked forms, TIG-welded joints, hardware inserts (PEM nuts, rivet nuts, studs), gaskets, hinges, and surface-treated components are produced as complete supply-ready sub-assemblies. In-house assembly reduces customer handling, inbound inspection burden, and line-side assembly time. Prototype-to-volume production pathway available from single pieces to 10,000+ pieces per year.
Key Features
- Processes: Fibre laser cutting, CNC press-brake bending, TIG/MIG welding, punching, rolling
- Material: SS 201, 304, 304L, 316, 316L, 430 — sheet and plate
- Thickness range: 0.5 mm – 25 mm laser cut; 0.5 mm – 12 mm press brake
- Maximum sheet size: 3000 mm × 1500 mm (laser bed); larger parts by quotation
- Dimensional tolerance: ±0.1 mm (laser); ±0.5° bend angle (CNC press brake)
- Surface options: 2B, No.4, mirror, brushed, passivated, electropolished
- No tooling required for laser-cut parts — immediate start on new designs
- IP-rated welded enclosures; hygienic Ra < 0.8 μm finishes available
Fibre Laser Cutting Capability
6 kW fibre laser cutting handles SS up to 25 mm thick with beam widths of 0.1–0.2 mm, achieving intricate cut-outs, fine slots, and complex profiles with ±0.1 mm positional accuracy. Nesting software maximises sheet utilisation. Laser-cut SS 316L with nitrogen assist gas produces oxide-free, passivated cut edges that do not require post-cut treatment for corrosion-sensitive applications — important for food processing and pharmaceutical installations.
CNC Press Brake Bending Precision
CNC press brakes with backgauge accuracy of ±0.02 mm and angular measurement feedback maintain consistent bend geometry across production runs. Offline programming with 3D simulation of bend sequences minimises setup time and material waste on complex parts. Bend radii from 0.5× material thickness to custom large radii. Air bending, bottoming, and coining modes are selected based on required angle tolerance and springback characteristics of the SS grade.
TIG Welding & Hygienic Fabrication
Orbital and manual TIG welding of SS 304/316 assemblies produces fully-penetrated, low-distortion welds. Post-weld operations include grinding, blending, linishing, and polishing to remove weld bead and heat-affected zone discolouration. Hygienic enclosures for food and pharmaceutical applications undergo full internal weld-grinding to Ra < 0.8 μm per EHEDG design guidelines. Weld procedure qualifications per ASME IX and EN ISO 15614-1 available for pressure vessel and structural applications.
Surface Treatment & Finishing
Post-fabrication surface treatments include pickling and passivation of welds (ASTM A967), electropolishing (ASTM B912), No.4 brushing/linishing, No.8 mirror polishing, and bead blasting. Passivation removes free iron contamination from shear edges and weld heat-affected zones, restoring the natural chromium oxide passive layer. Critical for offshore, marine, chemical, and food-service applications where surface quality directly impacts corrosion and hygiene performance.
Hardware Insertion & Assembly
In-house hardware insertion (PEM self-clinching nuts, rivet nuts, studs, standoffs), hinge fitting, gasket installation, and mechanical assembly services allow supply of ready-to-install SS sheet metal assemblies. Hardware compatibility: SS 304/316 fasteners standard; zinc-plated alternatives on request where cost is a constraint. Packaging to customer specification for just-in-time delivery to assembly lines.
Design for Manufacturability (DFM) Support
Engineering team reviews customer CAD models (STEP, DXF, DWG, SolidWorks) for DFM optimisation — recommending bend radii, tooling relief features, weld access design, and tolerance relaxation opportunities to reduce manufacturing cost without compromising function. DFM consultation is provided free-of-charge as part of the quotation process.
Technical Specifications
| Parameter | Specification |
|---|---|
| Primary Processes | Fibre laser cutting, CNC press-brake bending, TIG/MIG welding, CNC punching, rolling |
| Material Grades | SS 201, 304, 304L, 316, 316L, 430 |
| Sheet Thickness | 0.5 mm – 25 mm (laser); 0.5 mm – 12 mm (press brake) |
| Maximum Sheet Size | 3000 mm × 1500 mm (laser bed) |
| Dimensional Tolerance | ±0.1 mm (laser cut); ±0.5° bend angle; ±0.2 mm bend position |
| Surface Finish | 2B, No.4, No.8, Electropolished (Ra < 0.4 μm), Passivated, Bead-blasted |
| Weld Standards | ASME IX, EN ISO 15614-1, BS EN ISO 9606-1 |
| Sealing | IP54, IP65, IP66, IP67 enclosures available with gaskets |
| Hygienic Standard | EHEDG Ra < 0.8 μm for food/pharma enclosures |
| Price | US$ 10.90 / Kilogram |
Material Grade & International Equivalents
| Grade | UNS | EN/W.Nr. | DIN | JIS | BS |
|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | X5CrNi18-10 | SUS 304 | 304S31 |
| SS 304L | S30403 | 1.4307 | X2CrNi18-9 | SUS 304L | 304S11 |
| SS 316 | S31600 | 1.4401 | X5CrNiMo17-12-2 | SUS 316 | 316S31 |
| SS 316L | S31603 | 1.4404 | X2CrNiMo17-12-2 | SUS 316L | 316S11 |
| SS 430 | S43000 | 1.4016 | X6Cr17 | SUS 430 | 430S17 |
Product Types & Variants
| Product Type | Description | Key Applications |
|---|---|---|
| Laser-Cut Flat Parts | Precision-cut SS profiles, blanks, brackets | Structural, architectural, OEM components |
| Press-Brake Bent Parts | Angles, channels, Z-sections, box sections | Electrical panels, cable management, structures |
| Welded Enclosures | TIG-welded SS boxes, housings, panels | Electrical, food-grade, instrument enclosures |
| Perforated Panels | SS sheet with punched hole patterns | Guards, ventilation, architectural, acoustic |
| SS Cable Trays/Trunking | Roll-formed trays, ladder trays, trunking | Offshore, chemical, food, pharma electrical |
| Sheet Metal Assemblies | Multi-part welded SS sub-assemblies | Equipment OEM supply, industrial machinery |
Applications by Industry
| Industry | Application |
|---|---|
| Electrical OEM & Switchgear | Panel frames, bus bar enclosures, instrument mounting plates, cable management |
| Food & Beverage Processing | Hygienic enclosures, conveyor guards, processing equipment panels, splash guards |
| Pharmaceutical / Biotech | Clean-room panels, sterile enclosures, equipment housings, electropolished covers |
| Oil & Gas / Offshore | Junction box panels, instrument enclosures, structural gussets, cable trays |
| Power Generation | Control panel SS housings, cable tray systems, structural supports |
| Architectural & Construction | Perforated cladding, decorative panels, handrail infill, balustrade panels |
| Marine & Shipbuilding | Accommodation panels, ventilation covers, cable routing trays, watertight lids |
Manufacturing Process
Customer CAD files (STEP, DXF, DWG) are reviewed for DFM and unfolded using sheet metal CAD software. Fibre laser cutting machines cut flat parts from SS sheet with nitrogen assist gas for clean edges. CNC press brakes bend formed parts to 3D geometry following the programmed bend sequence. TIG welding assemblies are built to welding procedure specifications (WPS) with qualified welders. Post-weld grinding, linishing, and polishing restore surface quality. Hardware is inserted on CNC clinching presses. Assembled parts undergo dimensional inspection, surface Ra measurement, and final visual inspection before packing. All material is traceable to EN 10204 3.1 MTCs.
Quality Standards & Certifications
- ISO 9001:2015 – Quality Management System
- ASTM A240 / A480 – SS Sheet and Strip standards
- EN 10088-2 – European SS flat products standard
- ASME IX – Weld Procedure and Performance Qualification
- EN ISO 15614-1 – Welding procedure specifications
- ASTM A967 – Chemical Passivation of SS
- ASTM B912 – Electropolishing of SS
- EHEDG – Hygienic Design for food/pharma equipment
- IEC 61537 – Cable tray systems for cable management
- EN 10204 3.1 – Material Test Reports
Why Choose Stainless Steel Fittings India
- Integrated SS sheet metal facility: laser, press brake, welding, finishing under one roof
- No tooling cost for laser-cut parts — instant start on new designs
- DFM engineering support at no extra charge during quotation phase
- Competitive pricing from US$ 10.90/kg; prototype-to-volume capability
- IP-rated and hygienic enclosures to EHEDG, FDA, and 3-A Sanitary standards
- Export to USA, UK, UAE, Germany, Australia, Singapore, Canada, Saudi Arabia
Frequently Asked Questions
What sheet metal grades do you fabricate?
SS 201, 304, 304L, 316, 316L, and 430. Grade is selected based on corrosion environment, formability, weldability, and cost requirements.
What is the maximum sheet thickness for laser cutting?
Our 6 kW fibre laser cuts SS up to 25 mm thick. Thinner material (0.5 mm to 3 mm) cuts at very high speed with burr-free edges using nitrogen assist gas.
Do you offer prototype quantities before volume production?
Yes. Laser cutting allows prototypes with no tooling cost. Single pieces to small batches are produced for customer approval before volume production commences.
Can you manufacture hygienic enclosures for food-grade applications?
Yes. SS 316L welded enclosures with full internal weld-grinding to Ra < 0.8 μm are manufactured per EHEDG design guidelines. Electropolished surfaces to Ra < 0.4 μm available for pharmaceutical applications.
What CAD file formats do you accept?
We accept STEP, IGES, DXF, DWG, SolidWorks (.sldprt), Inventor, and PDF technical drawings. 3D STEP files are preferred for complex multi-bend parts.
Do you supply Mill Test Certificates?
Yes. EN 10204 3.1 Mill Test Certificates for all raw material are supplied with every order. Dimensional inspection reports and weld procedure certifications (for welded assemblies) are also available.
Can you supply IP65/IP66 rated enclosures?
Yes. TIG-welded SS enclosures with continuous weld seals and neoprene or silicone gaskets achieve IP65, IP66, and IP67 ratings per IEC 60529. We can provide IP test certificates on request for project specifications.
What are equivalent terms in other languages?
Spanish: Piezas de chapa de acero inoxidable, Fabricación de chapa inox, Corte láser acero inoxidable, Plegado de chapa inoxidable
Russian: Детали из нержавеющего листового металла, Лазерная резка нержавейки, Гибка нержавеющего листа, Изготовление корпусов из нержавейки
French: Pièces en tôle inox, Découpe laser acier inoxydable, Pliage tôle inoxydable, Fabrication coffret inox
Portuguese: Peças em chapa de aço inox, Corte a laser inox, Dobramento de chapa inoxidável, Fabricação de caixas em inox
Italian: Parti in lamiera di acciaio inox, Taglio laser inox, Piegatura lamiera inossidabile, Produzione contenitori inox
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Request a Quote
Send your CAD files, DXF, or drawings to Stainless Steel Fittings India for a fast competitive quotation on stainless steel sheet metal parts. Price from US$ 10.90/kg. Prototype and volume production. DFM review at no charge. OEM supply programmes and export enquiries welcome.
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