SUS316 Stainless Steel Shaft
product introduction
SUS316 stainless steel shaft refers to shaft parts made of SUS316 stainless steel. SUS316 stainless steel is an austenitic stainless steel. Compared with the common SUS304 stainless steel, it adds molybdenum (about 2%) to its composition, which makes it more corrosion-resistant.
Chemical Composition
Carbon (C): ≤0.08%
Chromium (Cr): 16%-18%
Nickel (Ni): 10%-14%
Molybdenum (Mo): 2%-3%
Manganese (Mn): ≤2%
Silicon (Si): ≤1%
Phosphorus (P): ≤0.045%
Sulfur (S): ≤0.03%
Mechanical Properties
Tensile Strength: ≥520 MPa
Yield Strength: ≥205 MPa
Elongation: ≥40%
Hardness (Brinell): ≤217HB
Manufacturing Process
1. Material Selection:
High-grade SUS316 stainless steel bars or forgings are selected according to customer specifications.
2. Rough Machining:
Turning, milling, or grinding is performed to achieve the approximate shape and dimensions.
3. Heat Treatment (Optional):
Solution annealing is carried out to relieve internal stresses and enhance corrosion resistance.
4. Precision Machining:
CNC machining, centerless grinding, and polishing are used to achieve high precision and superior surface finish.
5. Surface Treatment:
Techniques such as mirror polishing, passivation, or electropolishing are applied to improve both corrosion resistance and aesthetics.
6. Quality Inspection:
Dimensional accuracy, surface finish, and corrosion resistance are tested to ensure compliance with relevant standards.
product Features
Corrosion Resistance
SUS316 stainless steel shaft contains 16%~18% chromium and 2-3% molybdenum. Chromium can form a dense oxide film on the steel surface to prevent the internal steel from being corroded; molybdenum can enhance the stability of the oxide film, making it more difficult for corrosive substances to penetrate, which makes the shaft used as the pump shaft of seawater pumps or the stirring shaft of chemical conveying equipment.
High Strength
The tensile strength of SUS316 stainless steel shaft is 485MPa and the yield strength is 170MPa. High strength means that the material can withstand greater external forces without permanent deformation or fracture, and is suitable for use as a shaft and transmission shaft that transmits larger torque.
High Surface Finish
After precision turning, grinding and polishing, the surface finish of SUS316 stainless steel shaft can reach Ra≤0.4μm, which can effectively prevent liquid or powder from remaining on the surface. It is suitable for equipment with strict hygiene requirements such as dairy product filling machines and liquid medicine delivery pumps.
Product applications
Chemical Equipment
SUS316 stainless steel shafts can be used as transmission shafts in chemical pumps, reactors, agitators and other equipment.
Marine Equipment
This stainless steel shaft can be used as a rotating shaft in seawater desalination equipment, ship propulsion devices, etc.
Medical Equipment
This stainless steel shaft is used as a power shaft in medical equipment such as centrifuges and infusion pumps.
Food Processing Machinery
This stainless steel shaft can be used as a stirring shaft or rotating shaft for equipment such as food mixers and cutters.
Pharmaceutical Equipment
SUS316 stainless steel shafts can be used as mixing shafts in mixing tanks, grinders and other equipment in pharmaceutical factories.
Common Specifications
Diameter Range: Φ5mm - Φ150mm
Length Range: 50mm - 3000mm (customizable)
Surface Finish:
Ra ≤0.4μm (mirror finish)
Passivated surface for enhanced corrosion resistance
Precautions
Regular Maintenance:
Periodic cleaning and lubrication are recommended to maintain optimal performance and prevent surface deposits.
Avoidance of Contact with Carbon Steel:
To prevent galvanic corrosion, ensure SUS316 components do not come into direct contact with carbon steel parts.
Company Strength
Shenzhen Sanhexing Shaft Manufacturing Co., Ltd. was established on May 26, 2010, located in the Wan Feng Technology Park, Shajing, Bao'an District, Shenzhen. Our factory covers an area of 1,600 square meters, with a well-developed supporting industry for electronic and mechanical manufacturing in the vicinity.
Certified Quality & Environmental Standards
All products are manufactured under ISO9001:2015, and comply with EU ROHS and REACH regulations.
Wide Range of Product Applications
Our shafts are used in automobiles, drones, power equipment, industrial robots, home appliances, motors, toys, and more.
Quick Response
All inquiries are replied to within 24 hours. We value efficiency and ensure customers get timely technical support and service.
ODM/OEM Capability
With more than 16 years of CNC machining experience, we offer custom manufacturing of shafts based on customer drawings or samples.
FAQ
Q: What corrosive environments are SUS316 stainless steel shafts suitable for?
A: SUS316 stainless steel shafts are particularly suitable for highly corrosive environments such as chloride ions, strong acids and alkalis, high humidity or seawater.
Q: What temperature can SUS316 shafts withstand?
A: The shaft material can withstand high temperatures of about 870°C in continuous operation and up to 925°C in intermittent operation.
Q: Can polishing or passivation be selected for surface treatment?
A: Yes. SUS316 stainless steel shafts can be mirror polished, electrolytically polished or pickled and passivated to further improve the appearance quality and corrosion resistance.
Q: How long is the delivery cycle of SUS316 stainless steel shafts?
A: Conventional specifications are in stock and can be shipped on the same day; customized shaft products are usually delivered within 7-15 working days, depending on the complexity of the process and the number of orders.
Q: How large can the diameter and length of SUS316 stainless steel shafts be?
A: The diameter range of SUS316 stainless steel shafts we provide is Φ5mm to Φ150mm, and the length range is 50mm to 3000mm. They can be customized on demand to meet different equipment structures and usage requirements.
Q: Do you support non-standard size customization?
A: Yes. Whether it is special diameter, non-standard length or processing with holes, slots, threads and other structures, we can provide customized processing services according to customer drawings or samples.
Q: Do you provide material test reports?
A: Yes, we can attach third-party material test reports or factory component analysis sheets with the goods to ensure that the material is authentic SUS316 stainless steel, and the composition and mechanical properties meet the standard requirements.
Q: Do you provide warranty for SUS316 stainless steel shafts?
A: We provide a 12-month warranty for all SUS316 shaft products. If quality problems are found during the warranty period due to material or processing problems, we will unconditionally replace or refund.
Q: What is the packaging method? Is it suitable for export transportation?
A: The product is packaged in plastic + foam anti-collision + wooden box / carton to ensure that there will be no surface scratches or deformation during long-distance transportation.
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