Description

316
316 stainless steel, 18cr-12ni-2.5 Mo due to the addition of Mo, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength is particularly good, can be used in harsh conditions;
Excellent work hardening (non-magnetic).
Equipment for the production of seawater, chemicals, dyes, papermaking, oxalic acid and fertilizers;
Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts.
Chemical composition of 316 stainless steel: C≤0.08, Si≤1.00, Mn≤2.00, P≤0.045, S≤0.03, Ni:10.0-14.0, Cr:16.0-18.5, Mo:2.0-3.0.
Mechanical properties of 316 stainless steel, tensile strength (Mpa) 620 MIN, yield strength (Mpa) 310 MIN, elongation (%) 30 MIN, area reduction (%) 40 MIN, density of 316 stainless steel 8.03g /cm3, austenitic stainless steel is generally used this value.

316L
316L is widely used in the chemical industry due to its excellent corrosion resistance. 316L is also a derivative of 18-8 austenitic stainless steel, with 2 ~ 3% Mo element added.
On the basis of 316L, many kinds of steel are also derived, such as 316Ti after adding a small amount of Ti, 316N after adding a small amount of N, and 317L after increasing the content of Ni and Mo.
C ：≤0.030
Si： ≤1.00
Mn：≤2.00
S ： ≤0.030
P ： ≤0.045
Cr：16.00～18.00
Ni：10.00～14.00
Mo：2.00～3.00

What is stainless steel coil?

Stainless steel coils are one of the most-in-demand raw materials in the construction and manufacturing sector. It also finds wide usage in the production of industrial equipment owing to its distinct mechanical and physical properties. Strong, resist corrosion, light in weight, and require low maintenance, they are also flexible and can be easily made into a range of designs.

Stainless steel coils are manufactured using hot rolling stainless steel slabs in a reheat furnace at a certain high temperature between 1,100° C to 1,300° C depending on the grade of the steel used for the manufacturing process. After continuously running it through heating and rolling mills, the product is coiled. Finally, the stainless steel coils are passed through the annealing and pickling lines for softer and brighter surface finish.

What are the types of stainless steel coils?

As discussed above, steel coils are made by winding or coiling a steel strip or sheet under very high temperatures. Depending on the production method, we can classify steel coils into four main types:

Hot rolled

Cold rolled

Carbon coil

Galvanised

Let us understand the types and uses of stainless steel coils:

·Hot rolled steel coil: Made from semi-finished products, these steel coils are rolled, annealed, and reduced to a certain thickness and rolled into coils. This type of steel coil is used in manufacturing pipes, steel doors and tanks and can be further processed into cold rolled steel. Hot-dip galvanised steel coils are also available with a pure zinc coating that offers economy, strength and formability. Hot-dip galvanised steel is used in building roofs, doors, windows, roller shutter doors and electric equipment.

·Cold rolled steel coil: Made by ‘pickling’ hot rolled plate in a weak acid solution to remove rust, it involves cleaning, brushing, drying, oiling, uncoiling, and cold rolling. It is then wound into coils after passing it through a size reduction machine. A higher finished product cold rolled steel coils has a smoother surface, higher dimensional accuracy and bigger strength. Cold rolled steel coil finds maximum use in the automotive industry. It may be mentioned that stainless steel differs from carbon steel in its chromium and nickel content.

·Carbon coil: Apart from carbon, carbon coil has small quantities of silicon, manganese, sulfur and phosphorus. It is good for second grade applications and comes in a variety of grades and thicknesses.

·Galvanised coil: The process of making galvanised coil is by hot-dipping or electrolytic deposition of hot or cold rolled sheet in zinc. It helps resist corrosion and is used in the automotive industry or in roofing.

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