In stock
- Material certification included
- Mutual NDA before any file or spec review
EOS M400 SS316 Build Plate | M400 SS316 Build Platform for Metal 3D Printing
What your process engineer actually checks
Flat, stable, and ready for production
Every build plate is manufactured from certified material, precision-machined, and inspected before shipment. Critical dimensions, flatness, thickness, and mounting features are verified to ensure reliable installation and repeatable print results.
Machine-ready compatibility
Build plates are available for EOS, Renishaw, SLM Solutions, Nikon, Trumpf, Additive Industries, and other metal AM platforms. Need a custom mounting pattern or proprietary format? We can manufacture to your drawing.
The M400 SS316 Build Platform is crafted from premium 316 stainless steel to provide enhanced corrosion resistance and industrial-grade reliability for EOS M400 and M400-4 systems. With a large 360×400mm surface and 76.2mm thickness, this stainless steel building platform ensures optimal thermal stability, reducing warping and maintaining dimensional accuracy for reactive or chemically challenging metal powders.
Precision CNC machining, stress relief, and surface grinding guarantee flatness across the platform, ensuring reliable first-layer adhesion, stable recoater operation, and minimal print failures. Engineered for high-volume production, medical device manufacturing, and industrial LPBF workflows, this build platform delivers consistent, repeatable results with long-term durability.
Key Features & Benefits
- Premium 316 Stainless Steel: Offers enhanced corrosion resistance for printing in high-humidity environments, with reactive metal powders, or for components exposed to chemicals or marine conditions.
- Large 360×400mm Build Surface: Maximize productivity by printing larger parts or multiple components in a single build.
- Optimal Thermal Mass (76.2mm): Provides consistent heat distribution to reduce warping and improve dimensional accuracy.
- Precision-Ground Surface: Ensures perfect first-layer adhesion and minimizes print failures and material waste.
- Direct EOS M400 Compatibility: OEM replacement plate guarantees seamless fit and reliable performance for EOS M400 and M400-4 systems.
WHY CHOOSE THE M400 SS316 BUILD PLATFORM?
- Enhanced Corrosion Resistance: Maintains structural integrity in chemically aggressive or humid environments.
- Long-Term Durability: Resistant to pitting, crevice corrosion, and material degradation over extended production runs.
- Versatile Material Compatibility: Supports stainless steels, tool steels, aluminum alloys, nickel-based alloys, and general-purpose titanium.
- Industrial Reliability: Designed for continuous, high-volume LPBF manufacturing.
Ideal For
- Chemical & Marine Applications: Components exposed to saltwater, chemicals, or high-humidity conditions.
- Medical Device Manufacturing: Parts requiring superior corrosion resistance and durability.
- High-Volume Production: Environments where plate longevity and reliability are critical.
- Reactive Material Printing: Applications involving challenging or reactive metal powders.
Upgrade your EOS M400 with a 316 stainless steel build plate for superior corrosion resistance and reliable, large-format 3D printing performance.
| Brand | Additive Plus |
| Country of origin | USA |
| Material | 316L |
| Platform | M400 |
| Package | 1 plate, 10 plates, 5 plates, 50 plates |
| Dimensions | 14.173×15.748×2.9 in, 360×400×73.66 mm |
We manufacture custom build plates.
Custom dimensions, mounting holes, threaded features, alignment pins, edge chamfers, engraved identification, or special surface requirements. Production-ready custom plates delivered in as little as 2–3 weeks.
Complete the workflow
Request a custom quote — we manufacture precision build plates for most metal AM systems.
Request a custom quote — we manufacture precision build plates for most metal AM systems.
- ✓ 316L — stronger pitting and chemical resistance than 304 stainless
- ✓ Precision-ground flatness for consistent first-layer adhesion
- ✓ Lead time: 6–8 weeks — configured to order
Need a titanium build platform for a different printer model or custom dimensions? Request a custom quote — we manufacture precision titanium build plates and additive manufacturing platforms for most metal AM systems.
The SLM 280 SS304 Build Platform is a precision-ground stainless steel build plate engineered for reliable LPBF production. Manufactured from high-grade 304 stainless steel and designed as a direct OEM-compatible solution, this SLM 280 metal build plate delivers excellent flatness, thermal stability, and repeatable first-layer performance for industrial additive manufacturing.
Need a custom steel build platform for another printer or alternative thickness? Request a custom quote — we manufacture precision stainless steel and specialty alloy build plates for most industrial LPBF systems.
Need a custom stainless steel build platform or alternative alloy for your LPBF system? Request a custom quote — we manufacture precision steel and specialty alloy build plates for most industrial metal 3D printers.
Other products teams run alongside EOS M400 SS316 Build Plate | M400 SS316 Build Platform for Metal 3D Printing
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In stock
Need a HIPed titanium build platform for a different printer model or custom dimensions? Request a custom quote — we manufacture precision HIPed titanium build plates and additive manufacturing platforms for most metal AM systems.
In stock
· 4-5 weeks
- ✓ Gas-atomized — full COA on every lot (20–63 µm, 5 kg bottle)
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Fast dispatch from Los Angeles
In stock
· 2 Business Days
High-strength. Heat-treatable. Corrosion-resistant. Genuine AO Metal 17-4PH precipitation-hardening stainless steel for LPBF metal 3D printing.
- ✓ Gas-atomized, low-oxygen — full COA per lot
- ✓ US-produced — workable volumes, no mill minimums
- ✓ Fast dispatch from Los Angeles
In stock
· 5-10 Business Days
- ✔ Each rated 50,000+ layers (~20 L) — up to 25× the life of standard films
- ✔ Lower cost per membrane than singles — genuine Nexa3D OEM
- ✔ Ships fast from our Los Angeles warehouse — lead time 5–15 business days · free U.S. shipping over $200
In stock
- ✓ High-temp strength, wear, oxidation & corrosion resistance
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Full COA on every lot · fast dispatch from L.A.
In stock
· 5-10 Business Days
In stock
From process engineers running EOS M400 SS316 Build Plate | M400 SS316 Build Platform for Metal 3D Printing
Unedited feedback from customers who reorder EOS M400 SS316 Build Plate | M400 SS316 Build Platform for Metal 3D Printing.
Reliable quality, responsive engineering support, and fast turnaround. That's why we've continued ordering from them.
We needed a non-standard hole pattern and a tight delivery window. The team delivered both without compromising quality.
The plate arrived ready to install. Dimensions, flatness, and surface finish were exactly what our process required.
Place your order, or talk to an engineer first
Order EOS M400 SS316 Build Plate | M400 SS316 Build Platform for Metal 3D Printing direct, or talk to materials engineer
Get a quote — response in under 24h
Tell us about your part. A real applications engineer reviews every quote — no contact-form roulette. NDA standard, free DfAM review for first-time customers.
Talk to an applications engineer
30 minutes with the team that designs AO Metal and runs our print services. We'll review your spec, recommend a process, and send a tailored proposal — installation, training, service included.
Book a demo with the team that built it
See the equipment running on a real part — in our L.A. shop or remotely. The engineer on the call is the one who'll support the machine after it ships.
Free DfAM review + free U.S. shipping on your first order.
Real engineering review by an applications engineer — not an automated check. Plus free domestic shipping, no minimum. Claim it once per company.
- Engineer-reviewed quote within 24 hours
- Free DfAM & material recommendation ($150 value)
- Free U.S. shipping (no minimum on first order)
- NDA signed before file review
Claim your offer
Takes 30 seconds. We'll reply within 24h with your claim code and a quote-ready link.