Collecting a complete range of solder paste, solder wire and solder rods, providing welding materials suitable for various SMT scenarios
Brand: JJY TinSolder
Model: LFWC07100824SS
Alloy Composition: Sn99.3Cu0.7 / Sn-Ag-Cu + special activator for stainless steel
Melting Point: 217~227℃
Recommended Working Temperature: 320~360℃
Wire Diameter: 0.6~3.0mm (customizable)
Packaging: 10 rolls (customizable)
| Name | Parameters |
|---|---|
| Model | LFWC07100824SS |
| Applications | Directly solders 304/316/201 stainless steel without acid pickling or copper pre-plating, strong joint bonding |
| Melting Point | 217~227℃ |
| Wire Diameter | 0.6 / 0.8 / 1.0 / 1.2 / 1.5 / 2.0 / 2.5 / 3.0 mm (customizable) |
| Rosin Content | 3.0~3.8% (high activity, higher available on request) |
| Packaging | 10 rolls (customizable) |
Stainless steel (304/316/201/321 austenitic, ferritic and martensitic stainless steel) has a stable Cr2O3 passivation layer on the surface that almost completely prevents conventional solder materials from wetting; traditional processes require acid pickling activation or copper/nickel pre-plating, which is cumbersome and costly.
JIAJINYUAN stainless steel lead-free solder wire uses a self-developed dual flux system of "strong activation + surface-energy matching": high-activity organic acids rapidly break down the Cr2O3 passivation layer at soldering temperature, while special surface modifiers adjust the interfacial tension between the tin alloy melt and stainless steel so the tin alloy spreads and wets directly on the surface.
No pickling, copper plating or polishing of stainless steel is required — simply wipe off surface oil with alcohol, then solder directly at an iron temperature of 320~360°C, greatly improving convenience and significantly lowering overall soldering cost.
It delivers stable, reliable results in applications such as 304 stainless steel cookware, stainless steel kettle heating plates, 316L food-grade structural parts, stainless steel decorative parts, hooks and fittings, medical instruments, and stainless steel mesh/basket welding, with bright joints and strong bonding.
Solder feeds smoothly without breaking, with solder climbing height up to 100% and bright, full joints. It effectively solves industry challenges such as cold joints, solder bridging, solder balls, tombstoning, and voids.
Certified to multiple environmental SGS standards including RoHS, halogen, and REACH (SVHC). Post-solder residue is transparent and colorless, ROL0 no-clean, with high insulation resistance for safe, reliable performance.
Advanced production and testing equipment from Germany and Japan, strict ISO9001/ISO14001 quality control, and 21 inspection steps per batch ensure consistent, stable performance over the long term.
Our experienced engineers provide one-on-one service, free on-site debugging, and better-matched solder wire products, solving soldering process issues on the spot.
A full range of solder wire products to meet diverse process needs
Sn99.3Cu0.7, wide application range, high soldering reliability — the most widely used eco-friendly solder wire today
Sn42Bi58 alloy, melting point 138°C, effectively protects heat-sensitive components such as FPC
Sn63Pb37 eutectic alloy, excellent soldering performance, cost-effective, ideal for general consumer electronics
0.1mm to 6mm, customizable (e.g., 0.1mm, 0.12mm, 0.3mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 3.0mm, 4.0mm, etc.).
10g/roll, 20g/roll, 50g/roll, 100g/roll, 250g/roll, 500g/roll, 700g/roll, 800g/roll, 900g/roll, 1kg/roll, 2kg/roll, 4kg/roll, 15kg/roll, 20kg/roll, etc. Customizable.
Rosin-core leaded solder wire, no-clean leaded solder wire, nickel-plated leaded solder wire, stainless-steel leaded solder wire, aluminum leaded solder wire, water-soluble leaded solder wire, low-temperature leaded solder wire, high-temperature leaded solder wire, matte leaded solder wire, solid-core leaded solder wire, solid-core leaded solder wire for selective wave soldering, leaded solder wire for automatic soldering irons, leaded solder wire for automatic laser soldering, leaded solder wire for speakers, leaded solder wire for motors, leaded solder wire for spot soldering, leaded solder wire for drag soldering, and other leaded solder wire for special applications.
Standard rosin content 2.0%, spot-soldering rosin content (1.6-1.8)%, drag-soldering rosin content 2.5% and above. Rosin content is customizable.
0.1mm to 6mm, customizable (e.g., 0.1mm, 0.12mm, 0.3mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 3.0mm, 4.0mm, etc.).
10g/roll, 20g/roll, 50g/roll, 100g/roll, 250g/roll, 500g/roll, 700g/roll, 800g/roll, 900g/roll, 1kg/roll, 2kg/roll, 4kg/roll, 15kg/roll, 20kg/roll, etc. Customizable.
Rosin-core lead-free solder wire, no-clean lead-free solder wire, halogen-free lead-free solder wire, nickel-plated lead-free solder wire, stainless-steel lead-free solder wire, aluminum lead-free solder wire, water-soluble lead-free solder wire, low-temperature lead-free solder wire, high-temperature lead-free solder wire, silver-bearing lead-free solder wire, matte lead-free solder wire, solid-core lead-free solder wire, solid-core lead-free solder wire for selective wave soldering, lead-free solder wire for automatic soldering irons, lead-free solder wire for automatic laser soldering, lead-free solder wire for speakers, lead-free solder wire for motors, lead-free solder wire for spot soldering, lead-free solder wire for drag soldering, and other lead-free solder wire for special applications.
Standard rosin content (2.2-2.4)%, spot-soldering rosin content 2.0%, drag-soldering rosin content 3.0% and above. Rosin content is customizable.
Targeted solutions for every soldering process challenge
Have other soldering issues? Consult our technical engineers now
Free Technical Consultation18 years of craftsmanship — every detail is a promise of quality
Advanced production and German testing equipment, strict ISO9001/ISO14001 quality control, and 21 inspection steps per batch ensure consistent, stable performance over the long term. Low fume, no unpleasant odor, and free of volatile gases harmful to health; no rosin splatter, transparent and non-discoloring rosin residue, and high insulation resistance.
Strictly compliant with national standards and made from high-purity virgin tin, electrolytic copper, and pure silver. Rich in main elements with very few impurities, the wire has a bright surface and produces bright, strong, reliable joints. Precise process control ensures uniformly and continuously distributed rosin flux with no core breakage for consistent joints; uniform outer diameter and neat, smooth winding that will not tangle or block the guide tube during automated soldering.
Our independently developed flux removes the oxide layer and surface oil from the soldered material, lowers its surface tension, enlarges the soldering area, and delivers good wettability, fast tinning, with no peaks or bridging.
A scientific rosin flux formula produced in strict accordance with national and EU standards ensures excellent solderability while keeping flux corrosiveness low, iron dross minimal, residue low, and cleaning unnecessary.
Precise winding technology keeps the wire flat and tangle-free, making it convenient for automated soldering equipment, effectively improving production efficiency and reducing waste.
Follow the guidelines to get the best performance
Store in a dry place at room temperature; shelf life 12 months.
Inspect the wire; use only if free of oxidation, broken strands, or peeling.
Compatible with electric soldering irons / automatic soldering stations; adjust iron temperature and wire feed speed according to joint size.
Reseal promptly after opening to prevent moisture and dust.
Multiple authoritative certifications, quality you can trust
Quality Management System
ROHS Compliant
EU Environmental Certification
18-Year Factory Brand
Years in Industry
Customers
Inspection Steps
Quality Certifications
Our professional technical team provides custom formulas based on your process requirements. Solder alloys, flux activity levels, cleaning methods and special performance characteristics can all be customized. We also offer product selection advice, optimize soldering processes and provide suitable solutions to improve your first-pass yield.
A 5000㎡ factory equipped with 96 production and testing machines. ISO9001/ISO14001 certified and strictly implemented. 21 inspection steps ensure stable solder performance. Incoming material, in-process and finished product testing ensure compliance. All eco-friendly products are SGS tested and meet RoHS, halogen-free and REACH (SVHC) standards.
18 years focused on solder paste R&D and production. Using high-purity virgin tin, optimized flux formulas and a special process that adds trace-element alloys. Our solder paste precisely matches assembly scenarios, delivering fast climbing and bright, full solder joints. No cold joints, bridging, solder balls, tombstones, voids, stringing, slump or drying issues. Factory-direct sales with no middlemen for better value.
Senior engineers provide pre-sales consulting and after-sales technical support with one-on-one service. Free on-site debugging and product matching. On-site problem solving. Solutions provided within 24 hours and issues resolved within 72 hours. Free replacement for quality issues.
High-end equipment from Germany and Japan ensures product precision and quality
Vacuum Mixing (Tank and Syringe) Batch Filling Integrated Machine (1)
German SPECTRO Spectroscopy Analyzer
Japanese Malcom solder paste viscosity meter
Solder paste dispensing and spraying + Laser welding testing machine
Vacuum Mixing (Tank and Syringe) Batch Filling Integrated Machine (2)
Solder paste printing testing machine
Programmable Desktop Reflow Soldering Machine Tester
Kecheng Test Constant Temperature and Humidity Chamber
Vacuum mixing (tank and syringe) filling and sealing integrated machine (3)
Paste emulsifying machine
Paste grinding machine
Fully automatic solder paste mixer
Middle part of the tin cylinder
Solder Extruder
Wire Stretcher
Winding Machine
Serving many well-known enterprises, trusted by customers
Free samples + on-site debugging by technical engineers
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