Release time：2020-01-16 18:44 Browse：
Austenitic Elongated Screws:
These screws are primarily made from stainless steel materials such as 304 or 316, offering excellent corrosion resistance and good toughness. They perform well even in humid or low-temperature environments without rusting or breaking easily. They are commonly used in outdoor construction, coastal projects, chemical equipment, and food machinery, where high corrosion resistance is required.
Martensitic Elongated Screws:
These are typically made from martensitic stainless steel (such as 410 or 420) or high-strength carbon steel (such as 10B21 or 40Cr). After heat treatment, they achieve high hardness and strength, but their corrosion resistance is generally lower. They are suitable for applications that require strong mechanical support, such as mechanical structures, heavy equipment, and steel construction projects.
| Item | Austenitic Elongated Screws | Martensitic Elongated Screws |
|---|---|---|
| Main Features | Excellent corrosion resistance, high toughness | High strength, high hardness |
| Common Materials | 304, 316 stainless steel | 410, 420 stainless steel, carbon steel |
| Application Scenarios | Coastal construction, chemical plants, outdoor equipment | Steel structures, mechanical equipment, construction engineering |
| Disadvantages | Moderate strength, relatively higher cost | Lower corrosion resistance, may require surface treatment |
