What Are The Common Materials For Stainless Steel Shafts

2025-09-11

The common materials for stainless steel shafts mainly include austenitic stainless steel, martensitic stainless steel, ferritic stainless steel, duplex stainless steel, and precipitation hardening stainless steel. Different materials have their own emphasis on corrosion resistance, strength, hardness, and processing performance due to differences in composition and structure. The following are specific classifications and characteristic analyses: 1、 Austenitic stainless steel (300 series) Representative grades: 304 (06Cr19Ni10), 316 (06Cr17Ni12Mo2), 321 (1Cr18Ni9Ti) characteristic: Excellent corrosion resistance: containing 18% -20% Cr and 8% -12% Ni, forming a dense passivation film on the surface, which can resist corrosion from atmosphere, water, acid and alkali. Non magnetic: The austenitic structure makes it non-magnetic and suitable for magnetic sensitive applications. Good processing performance: can be strengthened through cold processing (such as cold rolling, cold drawing), but cannot be strengthened through heat treatment. Excellent low-temperature toughness: It maintains good toughness even at -196 ℃ and is suitable for low-temperature environments. Application Scenario: 304 stainless steel shaft: for general applications such as food processing equipment, medical devices, ch...

Core Characteristics Of Chrome-Plated Smooth Shafts

2025-09-11

The core characteristics of chrome-plated smooth shafts are reflected in five aspects: corrosion resistance, wear resistance, high strength, high precision, and functional diversity. A detailed analysis is as follows: 1. Corrosion resistance: Dense protective layer of hard chromium plating The chrome-plated smooth shaft undergoes an electroplating process to form a hard chromium layer on its surface. This layer exhibits extremely high chemical stability, effectively isolating corrosive media such as oxygen, moisture, and salt spray in the air. For example, in marine platforms or chemical equipment, chrome-plated smooth shafts can be exposed to humid, salty, or chemically corrosive environments for extended periods without rusting, significantly extending their service life. This characteristic makes them the preferred material for harsh environments, such as ship rudder systems and lifting mechanisms on offshore drilling platforms. 2. Wear resistance: High hardness of chromium layer reduces friction loss The hardness of the hard chromium layer can exceed 900 HV, far higher than that of ordinary steel (e.g., 45# steel has a hardness of about 200 HV). This high hardness enables chrome-plated smooth shafts to perform exceptionally well under friction and wear, making them particularly suitable fo...

Brief Description Of Stainless Steel Linear Smooth Shafts

2025-09-11

1. Stainless steel linear smooth shaft (SF): Due to the point-to-surface contact between the stainless steel linear smooth shaft and the linear sliding ring, the surface hardness requirements for ordinary linear smooth shafts are very high. Therefore, the material and heat treatment methods are critical. Material: SUJ2 (equivalent to Chinese standard GCr15). Hardness: HRC60 ± 2. Hardened layer depth: 0.8–3 mm. Surface roughness: Ra 0.10 μm – Ra 0.35 μm. Straightness: ≤ 70 μm / 1000 mm. Shaft outer diameter tolerance: g6. 2. Chrome-plated linear smooth shaft (SFC): The chrome-plated linear smooth shaft is coated with a layer of hard chromium on the basis of an ordinary linear smooth shaft, making it suitable for rust-prone or harsh environments. This shaft is widely used in industrial robots and the moving parts of automatic sliding systems. Material: SUJ2 (equivalent to Chinese standard GCr15). Hardness: HRC60 ± 2. Hardened layer depth: 0.8–3 mm. Surface roughness: Ra 0.10 μm – Ra 0.35 μm. Straightness: ≤ 70 μm / 1000 mm. Chrome plating thickness: 3 μm – 5 μm. Shaft outer diameter tolerance: g6. 3. Stainless steel linear smooth shaft (RSFC): The chrome-plated linear soft shaft can be directly used for pre...

Chemical Composition And Manufacturing Process Of Pneumatic Cylinder Tube

2025-09-11

Pneumatic cylinder tube (cylinder tube) is a high-precision seamless steel pipe material, and its chemical composition and manufacturing process have a decisive impact on its performance. The following is a detailed introduction: 1、 Chemical composition The chemical composition of pneumatic cylinder tubes mainly includes elements such as carbon (C), silicon (Si), manganese (Mn), sulfur (S), phosphorus (P), chromium (Cr), etc. These elements each play an important role in steel pipes: Carbon (C): Increases the strength and hardness of steel pipes, but excessive carbon content can reduce their plasticity and toughness. Silicon (Si): improves the elasticity and heat resistance of steel pipes, while also aiding in deoxidation. Manganese (Mn): enhances the strength and hardness of steel pipes, while improving their cold working performance. Sulfur (S) and phosphorus (P): These two elements are often considered harmful in steel pipes because they reduce the plasticity and toughness of the pipes and increase brittleness. Therefore, in the manufacturing process of pneumatic cylinder tubes, it is necessary to strictly control the content of sulfur and phosphorus. Chromium (Cr): improves the corrosion resistance and oxidation resistance of steel pipes, while also helping to form a dense oxide film to p...

The Machining Principle Of Honed Cylinder Tube

2025-09-11

The machining principle of honed cylinder tubes is based on micro-cutting achieved through a combined rotational and reciprocating motion of the honing tool. This process utilizes abrasive stones mounted on a honing head to interact with the inner surface of the workpiece, forming a cross-hatched pattern that improves geometric accuracy and reduces surface roughness. The following sections detail the core principles and mechanisms involved: I. Basic Motion Mechanism The honing head drives abrasive stones (honing sticks) to perform two simultaneous motions: Rotational Motion: The honing head rotates around its axis, generating circumferential cutting traces. Reciprocating Motion: The honing head moves axially back and forth, producing linear cutting traces. Combined Effect: The superposition of these motions creates a cross-hatched pattern with a typical angle of 30°–60° (adjustable based on requirements). This pattern enhances oil retention, reduces friction, and improves wear resistance. II. Material Removal Mechanism Micro-Cutting Action: Abrasive grains remove material at a micron-level depth, ensuring minimal heat generation and avoiding thermal damage to the workpiece. The large contact area between the abrasive stones and the bore wall results in low unit pressure (typ...