What is ZT615A nickel-based alloy and why is it important?
ZT615A is an advanced nickel-based alloy developed by ZHITIAN, designed specifically for demanding industrial applications requiring exceptional wear resistance and corrosion protection. The alloy's main chemical composition includes more than 60% Nickel (Ni), over 15% Chromium (Cr), and significant Iron (Fe) content, which together provide a durable and stable metal matrix suitable for harsh working environments.
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Material
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Chemical Composition
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C
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Si
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B
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Cr
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Fe
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Ni
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ZT615A
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0.8-1.2
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3.0-5.0
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3.0-4.0
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15-18
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≤5
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bal.
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How does ZT615A achieve high hardness and durability?
After vacuum sintering, ZT615A forms a dense alloy layer approximately 2 millimeters thick on surfaces such as the eight-shaped hole of twin screw extruder barrels. This layer exhibits a uniform metallographic structure with low porosity. The hardness reaches an impressive range of HRC 55-58, providing strong resistance against mechanical wear.
What makes ZT615A highly wear-resistant?
ZT615A contains hard phase elements such as Chromium (Cr), Silicon (Si), and Boron (B). During high-temperature sintering, these elements form fine, dispersed carbide particles throughout the alloy matrix. These carbides greatly enhance the alloy's wear resistance. Laboratory abrasion tests show that under identical conditions, ZT615A's wear resistance is 2.5 to 3 times higher than that of conventional high-speed tool steel M2 (W6Mo5Cr4V2).
How does ZT615A perform in corrosion resistance?
Nickel is known for its excellent high-temperature stability, corrosion resistance, and rust prevention. Coupled with a high Chromium content, ZT615A significantly outperforms traditional iron-based corrosion-resistant alloys like 304 and 316L stainless steel. This makes it ideal for environments with chemical exposure or high thermal oxidation demands.
FAQ: Frequently Asked Questions about ZT615A Alloy
Q1: What industries can benefit from ZT615A alloy?
A1: Industries requiring durable components under high wear and corrosive conditions such as plastic extrusion, chemical processing, and metallurgy benefit greatly from ZT615A.
Q2: How thick is the alloy layer formed by ZT615A powder on equipment surfaces?
A2: Typically, a 2 mm thick dense layer is formed via vacuum sintering, providing long-lasting protection.
Q3: Can ZT615A replace traditional tool steels in extrusion barrels?
A3: Yes. Due to its superior hardness and wear resistance, ZT615A is an excellent replacement, especially in harsh extrusion conditions.
Q4: How does ZT615A compare to stainless steel in corrosion resistance?
A4: ZT615A has much higher corrosion resistance than common stainless steels such as 304 and 316L, due to its high Nickel and Chromium content.
About ZHITIAN's Material Innovation
ZHITIAN has developed ZT615A as part of its continuous effort to provide advanced alloy solutions tailored for twin screw extruder parts and other demanding applications. Combining metallurgical expertise and state-of-the-art powder metallurgy technology, ZHITIAN ensures each batch meets rigorous quality standards, supporting customers worldwide with durable and high-performance materials.
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