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Premium 416 Stainless Steel Flat Bar | ASTM A240 & A480 Compliant
Premium 416 Stainless Steel Flat Bar | ASTM A240 & A480 Compliant
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Product Detail Page: Premium 416 Stainless Steel Flat Bar | ASTM A240 & A480 Compliant
Product Overview
Our 416 stainless steel flat bar is a premium-grade martensitic alloy engineered for precision machining, structural integrity, and moderate corrosion resistance. Compliant with ASTM A240 (material specification) and ASTM A480 (dimensional tolerances), this stainless steel flat bar is ideal for industrial, automotive, and construction applications requiring high strength, durability, and ease of fabrication.
Specifications & Technical Data
Dimensions & Tolerances
| Property | Specification |
|---|---|
| Standard Size | 60mm (Width) × 5mm (Thickness) |
| Length | 6 meters (Custom lengths available) |
| Width Tolerance | ±1.5mm (ASTM A480 compliant) |
| Thickness Tolerance | ±0.2mm |
| Surface Finish | Bright annealed, pickled, or polished |
Mechanical Properties
| Property | Value (Annealed Condition) |
|---|---|
| Tensile Strength | 517 MPa (75 ksi) min |
| Yield Strength | 276 MPa (40 ksi) min |
| Elongation | 30% min |
| Hardness (Rockwell) | HRB 85-95 |
| Density | 7.75 g/cm³ |
Chemical Composition
| Element | Cr | Mn | S | C | Si | P | Fe |
|---|---|---|---|---|---|---|---|
| % | 12-14 | ≤1.25 | 0.15↑ | ≤0.15 | ≤1.00 | ≤0.06 | Balance |
Key Features
- Superior Machinability: Enhanced by sulfur content, achieving 85% efficiency compared to carbon steel.
- Heat Treatment Compatibility: Hardenable up to HRC 50 for increased wear resistance.
- Corrosion Resistance: Suitable for mild environments (e.g., dry air, freshwater). Avoid prolonged exposure to chlorides or marine conditions.
- Magnetic Properties: Ideal for electrical and automotive components.
Performance Characteristics
Tensile & Bend Strength
The 416 stainless steel flat bar exhibits a minimum tensile strength of 517 MPa, ensuring structural reliability under high-stress conditions. Its bend strength, calculated as ~60-70% of tensile strength (~310–379 MPa), supports applications like brackets, frames, and machinery parts.
Weight Calculation Formula
Calculate weight for custom projects:
Example: A 60mm × 5mm × 6m bar weighs 13.95 kg.
Identification & Marking
- ASTM Standards: Laser-etched with ASTM A240/A480 compliance, grade (UNS S41600), and heat number.
- Surface Markings: Includes manufacturer logo, dimensions, and batch code for traceability.
Why Stainless Steel Rusts
While stainless steel flat bars resist oxidation due to chromium oxide layers, rust may occur from:
- Chloride Exposure: Saltwater or de-icing chemicals degrade passive layers.
- Mechanical Damage: Scratches or abrasions expose underlying iron to oxidation.
- Improper Cleaning: Residual contaminants accelerate pitting corrosion.
Applications
- Automotive: Shafts, gears, and valve components.
- Industrial Machinery: Bolts, nuts, and hydraulic systems.
- Construction: Structural supports and architectural fittings.
- Food Processing: Non-reactive parts in mild environments.
Why Choose Our Stainless Steel?
- ASTM-Certified Quality: Rigorous compliance with A240/A480 ensures dimensional and material precision.
- Customization: Available in sizes from 10mm × 5mm to 200mm × 10mm.
- Competitive Pricing: Direct factory pricing with bulk-order discounts.
- Global Logistics: Seaworthy packaging and fast delivery.
- Technical Support: Expert guidance on machining, welding, and heat treatment.
