Product Description
6J13 Manganin Alloy Strip (0.19mm Thickness × 25mm Width)
Product Overview
6J13 manganin alloy strip (0.19mm×25mm), a precision-engineered resistance alloy product from Huona New Material, is a thin-gauge functional strip crafted from Mn-Cu-Ni ternary manganin alloy. Through advanced vacuum smelting, multi-pass precision cold-rolling, and segmented annealing processes, this strip achieves ultra-tight dimensional control (0.19mm thickness ±0.002mm, 25mm width ±0.1mm) and consistent electrical properties. Unlike generic manganin strips, its fixed thin gauge and narrow width are tailored for miniaturized, high-batch precision components—integrating balanced resistance stability, excellent micro-stamping performance, and cost-effective batch production advantages. It has become the core material for micro-current shunts, miniaturized resistor networks, and portable sensor elements in consumer electronics, automotive micro-electronics, and IoT devices.
Standard Designations & Specification Value
- Alloy Grade: 6J13 (Chinese standard manganin precision resistance alloy; optimized for thin-gauge rolling performance)
- Dimensional Specification: 0.19mm thickness × 25mm width (customizable, but this fixed 规格 matches mainstream micro-component stamping dies)
- International Alignment: Performance aligned with DIN 17471 CuMn12Ni2 thin strips, with adjusted Mn content (12.0-13.0%) to enhance thin-gauge ductility
- Compliant Standards: GB/T 1234-2019 (resistance alloy strips) + GB/T 2059-2021 (copper alloy strips) + IEC 60404-8-2 (precision resistance components)
- Manufacturer: Huona New Material, certified to ISO 9001 and RoHS, with specialized thin-gauge alloy rolling lines (minimum rolling thickness 0.01mm)
Key Fresh Advantages (Tailored for 0.19×25mm Specification)
1. Specification-Matched Micro-Component Adaptability
- Thickness Precision for Miniaturization: 0.19mm thickness hits the "golden balance" for micro-devices—thinner than 0.25mm strips (reducing component volume by 24%) while avoiding the brittleness of ultra-thin strips (<0.15mm) that crack during stamping. It perfectly fits the thickness requirement of smartphone fast-charging shunts and wearable sensor resistors.
- Narrow Width for Batch Stamping: 25mm width matches 4-6 sets of micro-shunt stamping dies (each die size ~4mm) per strip, enabling one-time stamping of 2000+ micro-components per 100m strip—reducing material waste by 30% vs. using 50mm wide strips for small parts.
2. Enhanced Micro-Processing Performance
- Ultra-Fine Etchability: The strip's uniform microstructure (grain size ≤20μm) and bright annealed surface (Ra ≤0.15μm) support ultra-fine chemical etching—minimum etched line width up to 0.02mm, meeting the production of micro-resistor grids for IoT sensor nodes (which require line width accuracy ±0.003mm).
- Stable Stamping Consistency: After 5000 times of continuous stamping (simulating mass production), the strip's thickness variation is <0.001mm, and the resistance deviation of stamped components is ≤0.05%—solving the "batch inconsistency" pain point of thin-gauge strips in automated production.
3. Cost-Efficiency & Application Flexibility
- Material-Saving Design: The fixed 25mm narrow width eliminates secondary slitting (a common step for wide strips), reducing processing costs by 18% and shortening delivery cycles by 3-5 days. For customers producing small-batch micro-components, it avoids inventory waste of wide strips.
- Dual-Temper Optional: Offers both soft (annealed, elongation ≥25%) and half-hard (elongation 15-20%) tempers for different processes—soft for complex bending (e.g., wearable device sensor leads) and half-hard for high-precision stamping (e.g., micro-shunt contacts).
Technical Specifications (With Micro-Application Data)
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Attribute
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Value (Typical)
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Micro-Application Significance
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Chemical Composition (wt%)
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Cu: 82.0-86.0%; Mn: 12.0-13.0%; Ni: 2.0-3.0%; Fe: ≤0.5%
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Mn content optimized to prevent thin-gauge cracking during rolling
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Thickness
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0.19mm (tolerance: ±0.002mm)
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Ensures uniform resistance of micro-shunts (avoiding current bias)
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Width
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25mm (tolerance: ±0.1mm)
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Matches 4-6 sets of micro-dies for batch stamping
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Resistivity (20℃)
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0.44±0.04 μΩ·m
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Balanced for 1-5A micro-shunts (common in consumer electronics)
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TCR (-40℃ to 140℃)
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±10 ppm/℃
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Stable for consumer electronics (operating temp: -10℃ to 60℃)
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Elongation (Soft Temper)
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≥25%
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Enables 180° bending (radius=0.38mm, 2× thickness) for sensor leads
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Surface Roughness (Ra)
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≤0.15μm
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Supports ultra-fine etching for micro-resistor grids
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Stamping Edge Burr
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≤0.005mm
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Meets the assembly gap requirement of micro-components (≤0.01mm)
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Product Specifications (With Micro-Production Support)
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Item
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Specification
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Micro-Production Advantage
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Surface Finish
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Bright annealed (oxide-free, oil-free)
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Reduces etching solution consumption by 10% (clean surface needs less pre-treatment)
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Flatness
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≤0.04mm/m
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Ensures uniform pressure during micro-stamping (no partial deformation)
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Supply Form
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Rolls (50m/100m per spool, spool diameter 120mm)
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Small spool fits automated micro-assembly lines (avoids strip tangling)
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Cutting Precision
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Cut-to-length (minimum 50mm, tolerance ±0.1mm)
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Suitable for small-batch prototype production of micro-components
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Custom Add-Ons
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Optional anti-tarnish passivation (12-month anti-oxidation)
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Extends shelf life for customers' inventory of small-batch strips
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Typical Micro-Application Scenarios (Fresh & Specific)
- Consumer Electronics Fast-Charging: Micro-current shunts for 65W smartphone chargers (0.19mm thickness fits the charger's slim design, 25mm width supports batch stamping of 4 shunts per strip—reducing production costs for charger manufacturers).
- Wearable Health Sensors: Resistance elements for smart watch heart rate sensors (soft temper enables 0.38mm radius bending, narrow 25mm width reduces material waste for small sensor production).
- IoT Sensor Nodes: Micro-resistor networks for wireless temperature/humidity sensors (ultra-fine etchability supports 0.02mm line width, ensuring sensor signal accuracy ±0.1℃/±1%RH).
- Automotive Micro-Electronics: Current-sensing strips for in-car USB charging modules (half-hard temper ensures stamping precision of contact points, stable TCR adapts to in-car temperature fluctuations -10℃ to 60℃).
Huona's Micro-Application Support (Value-Added)
Huona New Material implements "micro-precision quality control" for 6J13 strips (0.19×25mm): each roll undergoes laser thickness measurement (100 sampling points/m), surface roughness inspection (per 5m segment), and micro-stamping simulation testing (100 samples per batch). Free samples (100mm×25mm, soft/half-hard temper optional) and micro-etching test reports are available upon request—helping customers quickly validate the strip's suitability for micro-component production.
