Blautec ACCESS hydraulic lifts are manufactured in AISI 316L stainless steel structure and polypropylene pool chair, both materials are fully suitable for outdoor use and with minimum corrosion levels. 

What are the properties of 316 stainless steel? 

316 stainless steel is an austenitic chromium-nickel steel containing between 2 and 3% molybdenum. The molybdenum content increases corrosion resistance, improves resistance to pitting in chloride ion solutions and increases resistance to high temperatures. 

Additionally, it is particularly effective in acidic environments and serves to protect against corrosion caused by sulphuric, hydrochloric, acetic, formic and tartaric acids, as well as acid sulphates and alkaline chlorides. 

Known as marine grade, grade 316 has many variants. The most common are given the letters L, F, N and H; each is slightly different and used for different purposes. Here, the designation "L" means that 316L steel has less carbon than 316. 

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What are the physical properties of type 316L steel? 

  • Density: 0.799g / cm2. 
  • Electrical resistance: 74 microhm - cm (20o Celsius). 
  • Specific heat: 0.50 kilo Joules / kg - Kelvin (0 - 100o Celsius). 
  • Thermal conductivity: 16.2 watts / meter-Kelvin (100o Celsius). 
  • Modulus of elasticity (MPa): 193 x 10 3 in tension. 
  • Melting range: 2,500 - 2,550o Fahrenheit (1,371 - 1,399o Celsius). 

As for the percentages of the elements used to create these alloys, they are: 

ELEMENT

TYPE 316L (%) 

Carbon 

0,03 máx. 

Manganese  

2,00 máx. 

Phosphorus  

0,045 máx. 

Sulphur  

0,03 máx. 

Silicon  

0,75 máx. 

Chromium  

16,00 - 18,00 

Nickel  

10,00 – 14,00 

Molybdenum  

2,00 – 3,00 

Nitrogen

0,10 máx. 

What are the qualities of 316L stainless steel? 

316L stainless steel exhibits better corrosion resistance and is stronger at elevated temperatures. 

It is also hardenable by heat treatment and can be easily formed and drawn. Annealing (treatment that reduces hardness and increases ductility or the ability to accept plastic deformation) of 316L stainless steel requires a heat treatment of between 1038o - 1149o Celsius before quenching. 

Some of its other qualities are as follows: 

  • It is durable and a good choice for high stress situations. 
  • High corrosion resistance. 
  • Suitable for projects with a lot of welding. 

What properties does polypropylene have?

Polypropylene (PP) is the thermoplastic, partially crystalline polymer obtained from the polymerization of propylene (or propene). It belongs to the group of polyolefins and is used in a wide variety of applications including food packaging, textiles, laboratory equipment, automotive components and transparent films. It has great resistance against various chemical solvents, as well as counter alkalis and acids.

The properties of Polypropylene isotactic, commercially known as Polypropylene, PP or PP, is very similar to polyethylene, except for the following specifications:

-        Lower density: PP has a specific weight between 0.9 g/cm³ and 0.91 g/cm³, while the specific weight of LDPE (low-density polyethylene) ranges between 0.915 and 0.935, and that of HDPE (high-density polyethylene). high density) between 0.9 and 0.97 (in g/cm³)

-        Higher softening temperature

-        Great resistance to stress cracking

-        Greater tendency to be oxidized (problem that is normally solved by adding antioxidants)

-        PP has a degree of crystallinity intermediate between high and low density polyethylene.

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