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Tungsten carbide-like wire, is an inexpensive alternative to tungsten carbide alloys, with the same wear resistance as tungsten carbide alloys. The density of the tungsten carbide-like welding wire is low, and the density of the tungsten carbide alloy is high, and the wear-resistant layer of the same area and size will be used for surfacing. Material costs. At present, only Beijing Guben Technology Co., Ltd. develops and produces tungsten carbide series welding wires in China. Let’s take a look at the difference between tungsten carbide-like welding wire and tungsten carbide alloy.

1. Metallographic organization

Tungsten carbide alloy is a soft matrix that wraps large, unevenly distributed tungsten carbide particles. In actual use, the soft matrix on the surface of tungsten carbide alloy will wear out quickly, and the combination of tungsten carbide particles and the matrix will loosen, which will easily lead to tungsten carbide particles falling off and affect the overall working life of the wear-resistant layer.

Tungsten carbide-like welding wire is distributed on a solid base with a large number of fine and uniformly dispersed special carbides. Since the tungsten carbide-like is dispersed in the matrix finely and evenly, the bonding performance between the carbide particles and the matrix is ​​good, and the phenomenon of loosening and falling off will not occur, and finally the ideal wear resistance effect is obtained.

2. Number of surfacing layers

Generally, tungsten carbide alloy can only be surfacing with one layer, while tungsten carbide-like welding wire can be used for multi-layer surfacing. The multi-layer surfacing can obtain a thicker wear-resistant layer, so that the tungsten carbide-like welding wire has a longer working life than the tungsten carbide alloy, and is more suitable for severe wear conditions.

3. Welding process

The oxyacetylene welding process is used for tungsten carbide alloy, the welding position is limited, the welding speed is slow, and the welding efficiency is low. Tungsten carbide-like welding wire uses a gas shielded welding process, which can be welded in various positions, semi-automatic welding, fast speed and high efficiency.

This is our second cooperation with a Thailand customer. The customer expressed that the first cooperation was very satisfied with our product quality and service, and hoped for long-term cooperation in the future!

Product name: ASTM B338 Grade 2 seamless titanium tube
Destination: Indonesia
Specifications: 19.05*1.00*6000mm
Quantity: 2 tons

Dear friends, if you have the same needs, please contact us. Email:[email protected] Tel: +86-29-8950 6568

Ti-6Al-4V-ELI, UNS R56407, Grade 23 (ELI=Extra Low Interstitials)

INTRODUCTION
Ti-6Al-4V-ELI, Grade 23 alloy (Extra Low Interstitials, UNS R56407) is a higher purity grade of Ti-6Al-4V alloy. This grade has lower oxygen, carbon, and iron content. It is used in biomedical applications such as surgical instruments, orthopedic implants, and is the preferred grade for marine and cryogenic applications, and some important aerospace components.
This titanium grade is produced by vacuum arc primary melting followed by a second vacuum arc remelting operation.
SPECIFICATIONS
• AMS 4930 – Bar, Wire, Billet, and Rings (annealed)
• AMS 4931 – Bar, Billet, and Rings
• AMS 4996 – Billet
• ASTM F 136 – Surgical Implants
PHYSICAL PROPERTIES
Melting Range: 2,800-3,000°F (1,538 – 1,649°C)
Density: 0.160 lbs/cu. in.; 4.47 gm/cc
Beta Transus Temperature: 1,790°F (± 25°); 976.7°C (± 3.9°)
HEAT TREATMENT
Ti-6Al-4V-ELI, Grade 23 alloy is normally used in the annealed condition.
1. Anneal: 1,300 -1,350°F; (704.4 – 732.2°C), 1 to 8 hours, air cool
2. Stress Relieving: 900 -1,200°F; (482.2 – 648.9°C), 1 to 4 hours, air cool
HARDNESS
Typical hardness in the annealed condition is Rockwell C 30-34.
FORMABILITY
The formability of Ti-6Al-4V-ELI, Grade 23 alloy is better than standard grade Ti-6Al-4V alloy, although it is still difficult to form at room temperature in the annealed condition. Severe forming operations such as bending or stretching can be performed on annealed material at temperatures up to 1,200°F; (648.9°C) without affecting mechanical properties. Hot sizing or shaping
can be done by creep forming in the 1,000 -1,200°F; (537.8 – 648.9°C) temperature range.
FORGEABILITY
Ti-6Al-4V-ELI, Grade 23 alloy is finish-forged from 1,750°F; (954.4°C) with a finishing temperature of 1,450°F; (787.8°C). Minimum reductions of 35% are recommended to obtain optimum properties.
MACHINABILITY
Ti-6Al-4V-ELI, Grade 23 alloy can be machined using practices for austenitic stainless steels using slow speeds, heavy feeds, ridgid tooling, and large amounts of non-chlorinated cutting fluid.
WELDABILITY
Ti-6Al-4V-ELI, Grade 23 alloy is easily welded in the annealed condition. Precautions must be taken to prevent oxygen, nitrogen, and hydrogen contamination. Fusion welding can be done in inert
gas-filled chambers or using inert gas welding of the molten metal and the adjacent heated zones using a trailing shield. Spot, seam, and flash welding can be performed without resorting to protective atmospheres.
Properties of Ti-6Al-4V-ELI, Grade 23 alloy welds such as ductility, impact strength, and fracture toughness are significantly better than welds of standard grade Ti-6Al-4V alloy.
SPECIAL PRECAUTIONS
Ti-6Al-4V-ELI, Grade 23 alloy can be subject to hydrogen contamination during improper pickling and by oxygen, nitrogen, and carbon pickup during forging, heat treating, brazing, etc. This contamination results in a deterioration in ductility which could adversely affect notch sensitivity and forming characteristics.

Through a couple of weeks of effort, we are ready to deliver the ASTM B111 UNS C61300 Aluminum Bronze Tubes to our Italian Customer.

They will be used for heat exchangers, the dimension is: OD 10MM x WT 0.89MM x Length 1,500MM.

We also can produce UNS C11000, UNS C44300, UNS C68700, UNS C70600, UNS C71500.

If you have such RFQs, welcome to contact us via [email protected] or WhatsApp:+86 177 7897 6690