Description

ATOMFAIR® C5191 PHOSPHOR BRONZE STRIP & SHEET

PRECISION ENGINEERING ALLOY

Product Overview

The ATOMFAIR® Phosphor Bronze Strip, Sheet & Foil product line offers premium QSN6.5-0.1 / C5191 copper-tin-phosphorus alloy engineered for demanding industrial, mechanical, and electronic applications. Featuring an exceptional combination of high hardness, superior electrical conductivity, excellent elastic properties, outstanding wear resistance, and spark-free impact performance, this material is the preferred choice for precision springs, electrical contacts, switch components, and mechanical assemblies. Available in an extensive thickness range from 0.02mm ultra-thin foil to 80mm heavy plate, with customizable width and length dimensions, the product line supports diverse fabrication requirements. Multiple processing capabilities including lathe turning, laser cutting, CNC machining, precision engraving, and milling enable custom zero-cut manufacturing for any specification. With foil options from 0.01-0.08mm (100-200mm widths), strip configurations from 0.02-1.0mm (100-400mm widths), and sheet/plate thicknesses from 1.0-80mm, the ATOMFAIR® phosphor bronze portfolio delivers versatile solutions for mold making, mechanical engineering, electronics manufacturing, and research applications. Competitive C5191 phosphor bronze price points are available for both industrial and research procurement.

Technical Specifications

PARAMETER	DETAILS
1. Core Material & Designation
Product Model	Phosphor Bronze Strip / Sheet / Foil
Material Grade	QSN6.5-0.1 / C5191
Alloy Type	Copper-Tin-Phosphorus (Tin bronze with phosphorus)
Thickness Range	0.02mm – 80mm (customizable)
Length & Width	Fully customizable (zero-cut available)
Processing Capabilities	Lathe · Laser Cutting · CNC · Precision Engraving · Milling
2. Phosphor Bronze Foil Specifications (Thickness × Width)
0.01mm × 100/200mm	10μm ultra-thin foil · 100mm or 200mm width · custom length
0.02mm × 100/200mm	20μm ultra-thin foil · 100mm or 200mm width · custom length
0.03mm × 100/200mm	30μm thin foil · 100mm or 200mm width · custom length
0.04mm × 100/200mm	40μm thin foil · 100mm or 200mm width · custom length
0.05mm × 100/200mm	50μm foil · 100mm or 200mm width · custom length
0.06mm × 100/200mm	60μm foil · 100mm or 200mm width · custom length
0.07mm × 100/200mm	70μm foil · 100mm or 200mm width · custom length
0.08mm × 100/200mm	80μm foil · 100mm or 200mm width · custom length
3. Phosphor Bronze Strip Specifications (Thickness × Width)
0.02 × 100mm	0.02mm thickness · 100mm width · custom length
0.03 × 100mm	0.03mm thickness · 100mm width · custom length
0.05 × 200mm	0.05mm thickness · 200mm width · custom length
0.06 × 200mm	0.06mm thickness · 200mm width · custom length
0.08 × 200mm	0.08mm thickness · 200mm width · custom length
0.10 × 400mm	0.10mm thickness · 400mm width · custom length
0.15 × 400mm	0.15mm thickness · 400mm width · custom length
0.20 × 400mm	0.20mm thickness · 400mm width · custom length
0.25 × 400mm	0.25mm thickness · 400mm width · custom length
0.30 × 400mm	0.30mm thickness · 400mm width · custom length
0.40 × 400mm	0.40mm thickness · 400mm width · custom length
0.50 × 400mm	0.50mm thickness · 400mm width · custom length
0.60 × 400mm	0.60mm thickness · 400mm width · custom length
0.80 × 400mm	0.80mm thickness · 400mm width · custom length
1.00 × 400mm	1.00mm thickness · 400mm width · custom length
4. Phosphor Bronze Sheet & Plate Specifications (Thickness, mm)
Thin Sheet (1.0 – 6.0mm)	1.0 · 1.2 · 1.5 · 2.0 · 2.5 · 3.0 · 4.0 · 5.0 · 6.0
Medium Plate (8.0 – 20mm)	8.0 · 10.0 · 12.0 · 15 · 20
Heavy Plate (25 – 80mm)	25 · 30 · 35 · 40 · 45 · 50 · 55 · 60 · 65 · 70 · 75 · 80
Custom Thickness	Available upon consultation (non-standard dimensions)
Length & Width	Fully customizable zero-cut available for all thicknesses
Manufacturing Standards	Processed under strict ISO 9001 / Precision-grade compliance conditions
Alternative Options	Explore our related phosphor bronze catalog or custom dimensions. For urgent technical custom requests or bulk C5191 phosphor bronze price inquiries, please contact our support team.

Key Features & Advantages

Superior Elastic & Wear Properties: QSN6.5-0.1 / C5191 phosphor bronze delivers exceptional elastic modulus, high hardness, and outstanding wear resistance for demanding spring and contact applications.
Spark-Free Impact Performance: Unique tin-phosphorus alloy composition ensures no spark generation upon impact, making it ideal for explosive and safety-critical environments.
Comprehensive Thickness Range: From 0.02mm ultra-thin foil to 80mm heavy plate with customizable width and length, supporting diverse applications from EMI shielding to heavy structural components.
Full Processing Capabilities: Supports lathe turning, laser cutting, CNC machining, precision engraving, and milling with zero-cut customization for any specification requirement.
Versatile Industry Applications: Widely used in mold manufacturing, mechanical engineering, electronics, precision instruments, automotive components, and research laboratory applications.

APPLICATION SCOPE: Precision electrical contacts and connectors, relay and switch components, mechanical springs and clips, EMI/RFI shielding, mold and die manufacturing, bearing and bushing applications, musical instrument components, marine hardware, chemical processing equipment, architectural metalwork, automotive engine components, and precision instrument manufacturing.

PACKAGING: Protective packaging with anti-tarnish interleaving to prevent surface scratching and oxidation during storage and transit. Foil and strip products are coil-wrapped; sheet and plate products are individually packed with edge protection. Custom packaging available for bulk orders and export shipments.

IMPORTANT NOTICE: Phosphor bronze products are susceptible to surface scratching during cutting, machining, and transportation — please carefully consider surface finish requirements before ordering. All custom cutting carries a dimensional tolerance of ±2mm (positive/negative) — thickness tolerance is negative only. For high-precision applications, please confirm tolerance requirements with our engineering team prior to order placement. Online listed prices are for reference only and do not represent final transaction pricing — do not place orders without prior specification confirmation. Custom zero-cut products are non-returnable and non-refundable as they cannot be resold — 7-day unconditional returns are not supported. Returns are only accepted for quality defects or drawing discrepancies. Please confirm specifications, quantity, and tolerance requirements before placing orders — orders without clear specifications will be considered invalid. Material thickness carries standard fixed negative tolerances — consult our support team for specific tolerance data. For critical dimensional requirements, consider ordering oversized material with finish machining. Store in a clean, dry environment away from corrosive chemicals and moisture to maintain surface quality. Proper handling and storage ensure long-term material integrity and performance.

TAILORED SOLUTIONS FOR RESEARCH

Contact our engineering team for technical support or official institutional quotations.

EMAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFair

FAQ

What is the trade-off in mechanical properties when selecting a harder temper like EH versus the annealed O state for Atomfair C5191 tin-phosphorus bronze foil?

Selecting a harder temper such as EH increases tensile strength and fatigue resistance for spring applications but significantly reduces ductility compared to the O state. The O (annealed) state provides maximum elongation of 40% for severe forming operations, while harder tempers like H or EH deliver optimal elasticity and wear resistance for contact springs, as supported by the product's hardness state options (O, 1/4H, 1/2H, H, EH, SH) and the O-state tensile strength of 315 N/mm².

Can Atomfair C5191 or C5210 tin-phosphorus bronze foil be used in electronic connectors that must maintain a non-magnetic environment, such as in MRI equipment?

Yes, both C5191 and C5210 foil are inherently non-magnetic, making them suitable for connectors and components in MRI and other magnetically sensitive applications. The product description explicitly lists non-magnetic behavior as a core characteristic, and the high fatigue strength and corrosion resistance further support long-term reliability in such environments.

What safety and handling precautions are needed for Atomfair tin-phosphorus bronze foil in explosive or spark-sensitive atmospheres?

Atomfair tin-phosphorus bronze foil is safe for use in explosive atmospheres because it produces no sparks when impacted, as stated in the product's core characteristics. Additionally, its corrosion resistance and non-magnetic nature eliminate the need for special storage beyond standard controlled humidity conditions to prevent surface oxidation, though no specific storage parameters are provided.

Assessment

Atomfair C5191/C5210 tin-phosphorus bronze foil provides high fatigue strength, excellent elasticity, and non-magnetic properties suited for high-end precision manufacturing. Its thin gauge (0.01–0.15 mm) and tight thickness tolerances (e.g., ±0.002 mm) necessitate careful handling and precise process control during fabrication.

Positive

High fatigue strength and elasticity: The alloy's high fatigue strength and excellent elasticity provide mechanical reliability under cyclic loading and spring-like applications, reducing failure risk in dynamic components.
Non-magnetic with excellent weldability: Non-magnetic behavior avoids interference in sensitive electronic or magnetic environments, while excellent weldability enables seamless integration into assemblies requiring soldering or brazing.

Trade-offs

Thin gauge handling sensitivity: Foil thickness ranges from 0.01 mm to 0.15 mm, demanding careful handling to prevent creasing, tearing, or dimensional distortion during cutting, stamping, or lay-up.
Tight thickness tolerance constraints: Thickness tolerances as fine as ±0.002 mm for the 0.01–0.06 mm range require precision measurement equipment and stringent process control, increasing quality assurance overhead.

Quality Standards & Performance Verification

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Shipping & Returns

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).