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Cold Rolled and Hot Rolled 416 Stainless Steel Plate Sheet Magnetic, Heat-Treatable Alloy for Precision Parts
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xProduct Details
| Products | Stainless Steel Plate | Grade | 416 |
|---|---|---|---|
| Thickness | 0.5-50.0mm | Tech | Cold Rolled,hot Rolled , Forged |
| Width | 1000mm 1219mm 1500mm Or Customs As Request | Surface | 2B NO.1 |
| Standard | ASTM GB JIS EN DIN | MOQ | 1 Ton |
Product Description
Cold Rolled and Hot Rolled 416 Stainless Steel Plate Sheet Magnetic, Heat-Treatable Alloy for Precision Parts
Stainless Steel Plate Specifications
| Name | 416 stainless steel Plate |
| Our Grade |
200 Series: 201 202 300 Series: 301 304,304L,304H,309S,310S,314,316L,316Ti,316H,316LN,317L,321,329,347 400 Series: 409L,410,410S,415,416,420,430,431,436L.439,441,443,444,445,446 Super Stainless Steel: 904L,926,254SMO,654SMO,15-5PH,17-4PH,17-7PH.etc Nickel Alloy: C276, C22,G35,Alloy X,Monel 400,K500,Inconel 600,601,617,625,718,Incoloy 800,800H,800HT,825.etc |
| Technique | Hot Rolled, Cold Rolled,Forged |
| Standard | JIS, AISI, ASTM, DIN, TUV, BV, SUS, etc |
| Thickness | 0.1 – 80.0mm |
| Width range | 10mm – 2000mm |
| Length | Customized |
| Finish | 2B, BA, No.4, 8k, Brushed,Hairline,PVD Coating,Sandblasted |
| Service | Laser Cutting, Bending |
| Sample | Available |
Cold Rolled and Hot Rolled 416 Stainless Steel Plate & Sheet – Magnetic, Heat-Treatable Alloy for Precision Parts
Product Overview
416 stainless steel is a martensitic, free-machining stainless alloy renowned for its exceptional machinability, magnetic properties, and ability to be heat-treated for enhanced strength. Available in both cold-rolled and hot-rolled forms, this versatile material serves as the backbone for high-precision components across automotive, aerospace, fluid control, instrumentation, and industrial machinery sectors.
The key differentiator of 416 stainless steel lies in its controlled sulfur content (≥0.15%), which significantly improves chip-breaking behavior during machining—making it the most machinable stainless steel in the martensitic family. Whether you require the tight tolerances and smooth finish of cold-rolled sheet or the cost-effective robustness of hot-rolled plate, 416 delivers consistent performance for demanding mechanical applications.
Crucially, 416 is magnetic and heat-treatable, enabling hardening to 25–45 HRC—ideal for wear-resistant shafts, gears, valve stems, and fasteners where dimensional stability and surface integrity are critical.
⚠️ Note: Due to sulfur-induced weldability limitations and moderate corrosion resistance, 416 is not recommended for welded structures or aggressive environments (e.g., marine, acidic, or high-chloride). For such cases, consider 316L or 17-4PH.
Cold-Rolled vs. Hot-Rolled: Key Differences
| Feature | Cold-Rolled 416 | Hot-Rolled 416 |
|---|---|---|
| Surface Finish | Smooth, uniform (Ra 0.4–1.0 µm); often 2B/BA | Scaled, rougher; may require pickling |
| Dimensional Tolerance | Tight (±0.05 mm typical) | Looser (±1% thickness or more) |
| Flatness | Excellent | Moderate (may have slight bow/warp) |
| Mechanical Strength | Higher (due to strain hardening) | Lower (annealed structure) |
| Typical Thickness Range | 0.5 mm – 6.0 mm | 3.0 mm – 50.0+ mm |
| Best For | Precision parts, CNC machining, thin components | Structural blanks, forgings, heavy-duty parts |
Both forms are fully heat-treatable and share identical chemical composition per ASTM A276/A240.
Chemical Composition (AISI 416 / UNS S41600)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.15 |
| Manganese (Mn) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≥ 0.15 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 12.0 – 14.0 |
| Nickel (Ni) | ≤ 0.60 |
| Iron (Fe) | Balance |
The elevated sulfur content enables superior machinability but reduces ductility and weldability.
Mechanical Properties Comparison
| Condition | Tensile Strength | Yield Strength | Elongation | Hardness (HB) |
|---|---|---|---|---|
| Cold-Rolled (Annealed) | 585–760 MPa | 310–450 MPa | 18–22% | 190–220 |
| Hot-Rolled (Annealed) | 515–725 MPa | 275–415 MPa | 20–25% | ≤183 |
| Heat-Treated (H&T) | Up to 1,000 MPa | Up to 850 MPa | 10–15% | 25–45 HRC |
Heat treatment: Austenitize at 980–1,010°C → oil quench → temper at 150–650°C.
Physical & Thermal Properties
| Property | Value |
|---|---|
| Density | 7.74 g/cm³ |
| Melting Range | 1,450–1,510°C (2,642–2,750°F) |
| Thermal Conductivity @ 100°C | 24.9 W/m·K |
| Specific Heat | 460 J/kg·K |
| Coefficient of Thermal Expansion | 10.0 µm/m·°C (20–100°C) |
| Magnetic? | Yes – ferromagnetic |
Its magnetic nature supports use in sensors, solenoids, and electromagnetic actuators—unlike non-magnetic 300-series grades.
Machinability Advantage
416 stainless steel offers ～85% machinability relative to B1112 carbon steel, far surpassing common austenitic grades:
| Grade | Relative Machinability | Tool Wear vs. 304 |
|---|---|---|
| 416 | 85% | 40–50% less |
| 303 | 78% | 30% less |
| 304 | 45% | Baseline |
| 316 | 40% | Higher |
Benefits include:
- Faster cutting speeds
- Reduced power consumption
- Superior surface finish on turned/milled parts
- Extended insert life in high-volume production
Typical Applications by Form
✅ Cold-Rolled 416 Sheet (0.5–6.0 mm)
- Valve stems and spindles
- Instrumentation housings
- Automotive sensor brackets
- Precision gears and bushings
- Electrical contact carriers
✅ Hot-Rolled 416 Plate (3–50+ mm)
- Pump shaft blanks
- Forging stock for fasteners
- Jig and fixture bases
- Industrial knife blades
- Custom machined flanges
Corrosion Resistance Profile
Resists:
- Atmospheric oxidation (urban/industrial)
- Freshwater exposure
- Mild organic acids (short-term)
- Steam and dry gases
Avoid in:
- Saltwater or coastal environments
- Hydrochloric/sulfuric acid service
- Chloride-rich process fluids
- Welded assemblies
Passivation or electropolishing can enhance surface oxide layer and improve mild corrosion performance.
Available Specifications
| Parameter | Options |
|---|---|
| Forms | Sheet (≤6 mm), Plate (>6 mm) |
| Processes | Cold-Rolled, Hot-Rolled (pickled & descaled available) |
| Thickness Range | 0.5 mm – 50.0 mm |
| Width/Length | Up to 1,500 mm × 6,000 mm (custom cutting available) |
| Surface Finish | 2B, BA, No.1, HRAP (hot-rolled annealed & pickled) |
| Temper | Annealed (standard), Pre-hardened (on request) |
| Standards | ASTM A240, ASTM A276, AISI 416, UNS S41600, JIS SUS416, EN 1.4009 |
| Certifications | Mill Test Report (EN 10204 3.1), RoHS, REACH, DFARS-compliant options |
Heat Treatment Guidelines
| Step | Temperature | Cooling Method | Purpose |
|---|---|---|---|
| Annealing | 815–900°C | Air cool | Soften for machining/forming |
| Hardening | 980–1,010°C | Oil quench | Achieve full martensitic structure |
| Tempering | 150–650°C | Air cool | Relieve stress; adjust hardness |
Avoid prolonged service above 425°C to prevent temper embrittlement.
Why Choose Our 416 Stainless Steel?
✅ Dual Processing Capability: Stock both cold-rolled and hot-rolled forms for flexible sourcing.
✅ Precision Quality Control: Ultrasonic testing, surface inspection, and full chemistry validation.
✅ Global Availability: Warehouses in North America, EU, and Asia.
✅ Engineering Support: Material selection, heat-treatment collaboration, and DFM feedback.
✅ Sustainable: Fully recyclable; >90% recycled content possible.
✅ Precision Quality Control: Ultrasonic testing, surface inspection, and full chemistry validation.
✅ Global Availability: Warehouses in North America, EU, and Asia.
✅ Engineering Support: Material selection, heat-treatment collaboration, and DFM feedback.
✅ Sustainable: Fully recyclable; >90% recycled content possible.
- Cold rolled 416 stainless steel sheet
- Hot rolled 416 stainless steel plate
- Magnetic heat-treatable stainless steel
- AISI 416 precision parts material
- Free-machining martensitic stainless
- SUS416 plate for valve stems
- 416 stainless steel for automotive sensors
- ASTM A240 416 cold rolled supplier
Ordering Information
- Minimum Order Quantity: 50 kg
- Lead Time: 3–7 days (stock sizes); 2–3 weeks (custom)
- Packaging: VCI paper, wooden crates, moisture-barrier sealed
- Samples: Available for qualification
Contact our technical sales team for CAD drawings, nesting optimization, or batch-specific certification.
Conclusion
Whether you need the dimensional precision of cold-rolled 416 for micro-valve components or the robust blank stock of hot-rolled 416 for heavy-duty shafts, this magnetic, heat-treatable alloy delivers unmatched machinability and mechanical versatility. By selecting the right rolling process for your application, you optimize both performance and cost-efficiency—without compromising reliability.
For non-welded, precision-engineered parts in mild environments, 416 stainless steel remains the gold standard for machinability-driven design.
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