316l stainless steel standards and introduction

Today I would like to introduce to you 316L stainless steel. Its application fields are relatively wide and it can be used in many aspects of our lives. 316L stainless steel can be used in bracelets and watches of high-end watches.

Shells can also be used in fields such as chemistry and dyes.

Overall, 316L stainless steel plays a considerable role in our lives.

So do you know its standards? Let’s introduce the 316l stainless steel standards in detail.

1. Introduction to 316l stainless steel 316L stainless steel is commonly used in heat exchangers of pulp and papermaking equipment, dyeing equipment, film processing equipment, pipelines, exterior materials for buildings in coastal areas, and bracelets and cases of high-end watches.

Seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal area facilities, ropes, CD rods, bolts, nuts?

2. 316l stainless steel standard 316L is a stainless steel material grade, AISI? 316L is the corresponding American label, sus? 316L? is the corresponding Japanese label.

my country's standard grade is 022Cr17Ni12Mo2 (new standard), and the old grade is 00Cr17Ni14Mo2, which means it mainly contains Cr, Ni, and Mo. The numbers indicate the approximate content percentage.

1. Chemical composition: Carbon?C?: ≤0.030 Silicon?Si: ≤1.00 Manganese?Mn: ≤2.00 Sulfur?S?: ≤0.030 Phosphorus?P?: ≤0.045 Chromium?Cr: 16.00~18.00 Nickel?Ni: 10.00

~14.00 Molybdenum? Mo: 2.00~3.002. Corrosion resistance: 316L is widely used in the chemical industry because of its excellent corrosion resistance. 316L is also a derivative of 18-8 austenitic stainless steel, with 2~

3% Mo element.

The Mo content of 316L makes this steel type have excellent resistance to pitting corrosion and can be safely used in environments containing halogen ions such as Cl-.

Since 316L is mainly used for its chemical properties, steel mills have slightly lower surface inspection requirements for 316L (compared to 304). Customers with higher surface requirements should strengthen surface inspection.

3. Mechanical properties: Tensile strength?σb?(MPa): ≥480 Conditional yield strength?σ0.2?(MPa): ≥177 Elongation?δ5?(%): ≥40 Sectional shrinkage?ψ?(

%): ≥60 Hardness?: ≤187HB; ≤90HRB; ≤200HV Density: 7.98g/cm3; Specific heat ratio (20℃): 0.502J/(g*K) Typical uses Most use requirements are to maintain buildings for a long time

original appearance.

When determining the type of stainless steel to choose, the main considerations are the required aesthetic standards, the corrosive nature of the local atmosphere, and the cleaning regime to be adopted.

?However, other applications increasingly seek structural integrity or impermeability.

For example, roofs and side walls of industrial buildings.

In these applications, the cost of construction to the owner may be more important than aesthetics, and the surface may not be very clean.

?Using 304 stainless steel works quite well in dry indoor environments.

However, maintaining its appearance outdoors in the countryside and cities requires frequent cleaning.

In heavily polluted industrial areas and coastal areas, the surface will be very dirty and even rusty.

But to achieve aesthetic results in outdoor environments, nickel-containing stainless steel is required.

Therefore, 304 stainless steel is widely used in curtain walls, side walls, roofs and other construction purposes. However, in severely corrosive industries or marine atmospheres, it is best to use 316 stainless steel.

?Stainless Steel Sliding Doors? Nowadays, people have fully realized the advantages of using stainless steel in structural applications.

There are several design guidelines that include 304 and 316 stainless steel.

Because "duplex" stainless steel 2205 has integrated good atmospheric corrosion resistance with high tensile strength and elastic limit strength, this steel is also included in the European standards.

?Product shape? In fact, stainless steel is manufactured in full-standard metal shapes and sizes, and there are many special shapes.

The most commonly used products are made of thin plates and strips, but medium and thick plates are also used to produce special products, such as the production of hot-rolled structural steel and extruded structural steel.

There are also round, oval, square, rectangular and hexagonal welded pipes or seamless steel pipes and other forms of products, including profiles, bars, wires and castings.

Surface Conditions As will be discussed later, a number of different commercial surface finishes have been developed to meet the aesthetic requirements of architects.