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NXF-101 S-Sn99Cu1/Sn99.3Cu0.7 Wire Diameter 0.3-2.0mm Weight 1-100kgs Lead Free Solder Tin Wire
2026-04-02 17:47 NXF-GROUP
19
Product Description
S-Sn99Cu1 (Sn99.3Cu0.7)Introduction
S-Sn99Cu1 (Sn99.3Cu0.7)Introduction
Sn99.3Cu0.7 is a eutectic, lead-free solder alloy composed of 99.3% Tin (Sn) and 0.7% Copper (Cu). It is RoHS-compliant, eco-friendly, and primarily used for electronics manufacturing and soldering applications requiring high reliability, with a melting point of approximately 227°C to 230°℃.
S-Sn99Cu1 (Sn99.3Cu0.7)Chemical Composition
S-Sn99Cu1 (Sn99.3Cu0.7)Chemical Composition
Key Features and Properties: Composition: 99.3% Tin (Sn), 0.7% Copper (Cu). Melting Point: Eutectic at 227°C (441°F), providing stable melting. Compliance: Lead-free and RoHS compliant, ensuring environmental safety. Form: Frequently available as wire (often with 2-3% flux core), bars, and powder.
Introduction to common type of Lead Free Solder Wire
Introduction to common type of Lead Free Solder Wire
Lead-free solder wire is an environmentally friendly, non-toxic alloy used to join electronic components without using lead (Pb ), mandated by regulations like RoHS. Primarily composed of tin mixed with silver, copper, or nickel, it has a higher melting point ($\sim$217-221°C) than leaded solder, resulting in stronger, but less shiny joints. Lead-free solder is used almost exclusively in modern consumer electronics.
Lead Free Solder Wire Drawing
S-Sn99Cu1 of Chemical Composition and Mechanical Properties
Our advantage as follow:
1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can giveyou the lowest price.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificate
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificate
Product processing
Lead-free solder wire processing involves synthesizing high-purity tin-based alloys (typically Sn-Ag-Cu/SAC) using chemical reduction or smelting, followed by extrusion into wire form and incorporating flux (resin/synthetic). It requires higher operating temperatures (217°C-221°C+), precise wetting optimization, and careful handling to mitigate PCB damage due to increased thermal stress, requiring superior flux to ensure reliability
Key Aspects of Lead-Free Solder Processing
Common Alloy Composition: The most common lead-free alloy is Tin-Silver-Copper (SAC), with combinations such as 96.5% Sn, 3% Ag, and 0.5% Cu.
Processing Temperatures: Due to higher melting points, lead-free soldering often requires higher processing temperatures, which can increase risks of component thermal stress.
Manufacturing Process: Alloy powder is created, often through chemical reduction, and then combined with flux. The mixture is extruded into wire form.
Flux Selection: Because lead-free solders have reduced wetting, active flux systems (often water-washable) are used to improve spread and joint reliability.
Soldering Techniques: Compatible with standard techniques like hand soldering, wave soldering, and reflow, but typically necessitates higher tip temperatures (340C370°C for hand soldering) to maintain efficient heat transfer.
Specification
Packing & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories. Established in 1980, XiFei has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." Our advantage as follow: 1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price. 2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality. 3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
Our advantage:3S Service(Small Quantity/Short Time/Special Material)
Certification
FAQ
1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern
Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central
America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material) We have our own factories, quality can be controlled
seriously. We Specialize in manufacturing about 21 years. We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern
Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central
America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material) We have our own factories, quality can be controlled
seriously. We Specialize in manufacturing about 21 years. We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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