Corrosion Resistance Comparison
Stainless steel wire rope has far superior corrosion resistance to galvanized steel wire rope.
Stainless steel (such as 304 or 316) contains chromium and nickel, which form a passivation film that resists acids, alkalis, salt spray, and humid environments. Experimental data show that 316 stainless steel can remain rust-free for over 20 years in a 5% salt spray test.
Galvanized steel wire rope, on the other hand, relies solely on a surface zinc layer for rust resistance. The zinc layer is typically 40-100 microns thick (GB/T 8918-2017 standard). In marine or chemical environments, this zinc layer can corrode through within 3-5 years.

Strength and Lifespan Differences
1. Strength: While both have similar strength, the zinc layer of galvanized steel wire rope may lose strength due to wear and corrosion.
2. Lifespan: Stainless steel rope can last up to 2-3 times longer than galvanized rope in harsh environments. For example, in offshore hoisting operations, the average replacement cycle for galvanized ropes is 2 years, while that for stainless steel ropes can exceed 5 years.

Mn13 steel plate, also known as Mn13 high-manganese steel plate, Mn13 non-magnetic steel plate, or Mn13 sheet, is a special high-manganese wear-resistant steel that plays an important role in industrial production and engineering applications.

Composition: Mn13 steel plate's primary component is manganese (Mn), with a content as high as 11% to 14%, and carbon (C) between 1.1% and 1.4%. It also contains small amounts of elements such as silicon (Si) and phosphorus (P).

Properties:
Wear Resistance: The high manganese content provides excellent wear resistance, enabling it to maintain stable performance over time in various harsh environments.
Impact Resistance: Even when parts are worn to very thin thicknesses, they can still withstand significant impact loads without breaking.
Toughness: Demonstrates excellent toughness and is not prone to fracture.
Non-magnetic: Mn13 steel plate is a non-magnetic austenitic steel.
Machinability and Weldability: It exhibits excellent machinability and weldability, facilitating cutting, bending, welding, and other processing operations.

Mn13 steel is a high-carbon, high-manganese austenitic steel. Its chemical composition is as follows:


Core Characteristics:
Excellent work-hardening ability: The core of Mn13 steel. When subjected to strong impact or high-stress compression, the surface austenite rapidly induces numerous dislocations and undergoes a martensitic transformation. The hardness can dramatically increase from an initial hardness of around HB200 to over HB500, forming a tough, wear-resistant surface layer while maintaining excellent toughness in the core.

Excellent impact wear resistance: Under high impact loads, such as gouging and impact wear, the hardened layer effectively resists gouging, demonstrating a service life far exceeding that of ordinary wear-resistant steels.

Excellent toughness: The high manganese content ensures the high toughness of the austenite matrix, enabling it to absorb significant impact energy without brittle fracture, thus preventing catastrophic failure under harsh operating conditions.

Moderate initial hardness and ease of processing: After solution treatment (water toughening), the material is in a soft and tough state (HB180-220), which is convenient for cutting, drilling, forming and other mechanical processing, providing convenience for the manufacture of complex wear-resistant parts.

1. Ordinary carbon structural steel
Q195 steel has low strength, good plasticity, toughness, processing performance and welding performance, and is mainly used for rolling thin plates and wire rods.
Q215 steel is mainly used to make pipe billets, bolts, etc..
Q235 steel has moderate strength, good load-bearing capacity, good plasticity and toughness, good weldability and processability, and is a commonly used grade for steel structures. It is made into steel bars, steel sections and steel plates in large quantities for building houses and bridges.
Q275 steel has high strength and hardness, good wear resistance, but poor plasticity, impact toughness and weldability. It is mainly used to manufacture shafts, agricultural tools, wear-resistant parts and pads.

2. Fine carbon structural steel, fine carbon structural steel is carbon steel with a carbon content of less than 0.8%. This steel contains less sulfur, phosphorus, and non-metallic inclusions than carbon structural steel. Compared with ordinary carbon structural steel, high-quality carbon structural steel has higher plasticity and toughness, and can be strengthened by heat treatment. It is mostly used for more important parts and is widely used in machinery manufacturing.

According to the different carbon content, high-quality carbon steel is divided into low carbon steel, medium carbon steel and high carbon steel. Low carbon steel has low strength and hardness, but high plasticity and toughness, excellent processing and welding properties, and is used to manufacture parts with small loads and high toughness requirements, as well as small carburized parts; medium carbon steel has high strength and hardness, low plasticity and toughness, good cutting performance, but poor welding performance, good cold and hot deformation ability, and is mainly used to manufacture mechanical parts with large loads. Commonly used medium carbon steels are 40#, 45# and 50# steels, but because the hardenability of carbon steel is not high, the larger the size of the part, the worse the strengthening effect of the quenching and tempering treatment.