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Cold-Rolled 416 Stainless Steel Plate for Automotive and Valve Components
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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 416 Stainless Steel Plate for Automotive and Valve Components
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 416 Stainless Steel Plate – Engineered for Automotive and Valve Components
Product Overview
Cold-Rolled 416 Stainless Steel Plate is a high-performance martensitic stainless steel specifically processed to meet the demanding requirements of the automotive and fluid control (valve) industries. Through controlled cold rolling, this material achieves enhanced dimensional accuracy, superior surface finish, improved mechanical strength, and consistent flatness—critical attributes for precision-engineered components.
Grade 416 stainless steel is distinguished by its intentional addition of sulfur (minimum 0.15%), which dramatically improves machinability—making it one of the most freely machinable stainless steels available. When combined with cold-rolling technology, the result is a plate that delivers both excellent formability during secondary processing and reliable performance in service.
Ideal for parts such as valve stems, pump shafts, fasteners, gears, and automotive trim or fittings, Cold-Rolled 416 Stainless Steel Plate offers a cost-effective solution where high-volume machining, tight tolerances, and moderate corrosion resistance are required.
Key Advantages
- Exceptional Machinability: Up to 85% more machinable than 304 stainless—reduces cycle times and tool wear.
- Cold-Rolled Precision: Tighter thickness tolerances (±0.05 mm typical), smooth surface (Ra ≤ 0.8 µm), and excellent flatness.
- Heat-Treatable: Can be hardened to 25–45 HRC for wear-resistant applications.
- Moderate Corrosion Resistance: Suitable for atmospheric exposure, freshwater, and non-aggressive chemical environments.
- Magnetic Properties: Ferromagnetic nature supports use in sensors, actuators, and electromagnetic assemblies.
- Automotive & Valve Industry Ready: Meets common OEM specifications for durability and consistency.
⚠️ Important Note: Due to its sulfur content, 416 stainless steel is not weldable and should be avoided in highly corrosive (e.g., marine, acidic, or chloride-rich) environments. For welded or marine applications, consider 316L or 17-4PH alternatives.
Typical Applications
| Industry | Components |
|---|---|
| Automotive | Fuel system fittings, steering components, sensor housings, trim pieces |
| Valves & Pumps | Valve stems, spindles, bonnets, gland nuts, impellers (non-cavitating) |
| Industrial | Gears, bushings, jigs, fixtures, fasteners, shafts |
| Instrumentation | Pressure gauge parts, flow meter bodies, actuator rods |
Chemical Composition (ASTM A276 / 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 deliberate sulfur addition forms manganese sulfide inclusions that act as internal lubricants and chip breakers during machining—key to its free-cutting behavior.
Mechanical Properties (Cold-Rolled, Annealed Condition)
| Property | Typical Value |
|---|---|
| Tensile Strength | 585–760 MPa (85–110 ksi) |
| Yield Strength (0.2% offset) | 310–450 MPa (45–65 ksi) |
| Elongation at Break | 18–22% |
| Hardness (HB) | 190–220 |
| Density | 7.74 g/cm³ |
Cold rolling increases strength and hardness compared to hot-rolled equivalents. Post-machining heat treatment (quench & temper) can further enhance hardness and wear resistance.
Physical & Thermal Properties
| Property | Value |
|---|---|
| Melting Range | 1,450–1,510°C (2,642–2,750°F) |
| Thermal Conductivity @ 100°C | 24.9 W/m·K |
| Specific Heat Capacity @ 20°C | 460 J/kg·K |
| Coefficient of Thermal Expansion | 10.0 µm/m·°C (20–100°C) |
| Electrical Resistivity | 0.57 µΩ·m |
| Magnetic Response | Ferromagnetic (strongly magnetic) |
Machinability Performance
| Stainless Grade | Relative Machinability* | Tool Life vs. 304 | Surface Finish Quality |
|---|---|---|---|
| 416 | 85% | +40–50% | Excellent |
| 303 | 78% | +30% | Very Good |
| 304 | 45% | Baseline | Fair |
| 17-4 PH | 40% | -20% | Good (post-heat treat) |
Relative to B1112 free-cutting carbon steel = 100%
This makes 416 ideal for high-speed CNC turning, milling, and drilling—especially in mass production of valve stems or automotive fittings where surface integrity and throughput matter.
Available Specifications
| Parameter | Standard Offerings |
|---|---|
| Thickness | 1.0 mm – 20.0 mm (cold-rolled) |
| Width | 600 mm – 1,500 mm |
| Length | 1,000 mm – 6,000 mm (cut-to-length available) |
| Surface Finish | 2B, BA, or custom ground (Ra 0.4–1.0 µm) |
| Temper Condition | Annealed (standard); Pre-hardened on request |
| Standards | ASTM A240, ASTM A276, AISI 416, UNS S41600, JIS SUS416 |
| Certification | Mill Test Report (EN 10204 3.1), RoHS, REACH |
| Packaging | VCI paper + wooden pallets; moisture-barrier sealed |
Heat Treatment Recommendations
| Process | Temperature | Quench Medium | Outcome |
|---|---|---|---|
| Annealing | 815–900°C | Air cool | Softened structure, optimal for machining |
| Hardening | 980–1,010°C | Oil or air | Forms hard martensite |
| Tempering | 150–650°C | Air cool | Adjusts hardness/toughness balance |
For valve stems requiring wear resistance: Harden at 1,000°C → oil quench → temper at 200–300°C → achieve ～38–42 HRC.
Corrosion Resistance Profile
Suitable for:
- Dry indoor automotive environments
- Freshwater valve systems
- Non-acidic food-contact surfaces (limited use)
- Atmospheric exposure (urban/industrial)
Not recommended for:
- Saltwater or marine atmospheres
- Chloride-containing fluids
- Strong acids (e.g., hydrochloric, sulfuric)
- Welded assemblies (sulfur causes hot cracking)
For mildly corrosive valve applications, a protective coating (e.g., passivation or electropolishing) can extend service life.
Why Choose Our Cold-Rolled 416 Plate?
✅ Automotive-Qualified: Compliant with major Tier 1 supplier material specs.
✅ Consistent Cold Rolling: ±0.05 mm thickness tolerance ensures uniform machining.
✅ Batch Traceability: Full chemistry and mechanical test reports included.
✅ Global Logistics: Stocked in USA, Germany, and Singapore for rapid delivery.
✅ Technical Support: Material selection guidance from metallurgical engineers.
✅ Consistent Cold Rolling: ±0.05 mm thickness tolerance ensures uniform machining.
✅ Batch Traceability: Full chemistry and mechanical test reports included.
✅ Global Logistics: Stocked in USA, Germany, and Singapore for rapid delivery.
✅ Technical Support: Material selection guidance from metallurgical engineers.
- Cold-rolled 416 stainless steel plate
- 416 stainless for valve stems
- Automotive-grade martensitic stainless steel
- Free-machining stainless plate AISI 416
- SUS416 cold rolled sheet supplier
- High-strength machinable stainless for pumps
- ASTM A240 416 plate for automotive fittings
Ordering & Support
- Minimum Order: 100 kg
- Lead Time: 5–10 days (standard sizes); 2–3 weeks (custom)
- Certifications: Available upon request (PPAP, IMDS, DFARS)
- Samples: Free small samples for qualification testing
Contact our technical sales team for CAD-ready dimensioning, nesting optimization, or heat-treatment collaboration.
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