Wire, round, rod 03х17н14м2 - 1.4404 - aisi 316L
Stainless steel grade 316L is an improved version of AISI 316, with additional content consisting of molybdenum and a higher Nickel content. This gives the opportunity to increase the resistance of steel to corrosion. AISI 316 L has excellent qualities for forming and excellent welding characteristics. This composition gives the opportunity to significantly increase steel corrosion resistance in most aggressive hired. The presence of molybdenum in AISI 316 L protects from pitting corrosion crevice in seawater environment chloride and acetic acid vapors in the polluted atmosphere.
AISI 316 L compared to the AISI 304 has the best creep resistance, has greater strength at high temperature. Also in sub-zero temperatures, the steel does not lose the excellent mechanical, corrosion properties. This grade is used when there is a risk of corrosion in heat-affected zones of the weld. Steel AISI 316 L, stabilized with titanium, is used in the temperature range 550−800°C for long time.
Such a unique outstanding properties of steel, such as corrosion resistance, high processability, excellent mechanical properties enable the Marche AISI 316 L have a wide range of applications in many industries. It may be chemical, pharmaceutical industry, oil industry, mechanical engineering, heat exchangers, processing, food industry, etc.
The chemical composition of 316 L, in percent.
Physical and mechanical characteristics in AISI 316 L.
|The density of steel||8.0 g/m3|
|Melting at a temperature||1400° C (2550° F)|
|Tensile strength (rupture)||Psi — 75000, MPa — 515|
|Limit (0.2% offset) yield strength||Psi — 30000, MPa — 205|
|The elongation attribute.||35%|
The minimum value at high temperatures the elastic limit (within a set time deformation for 10000 h B1% at given temperatures)
|Temperature in °C||550||600||650||700||800||Time|
|plastic deformation Rp1,0 to 1.0% (turnover), in N/mm2||120||80||50||25||5||100 000 h|
|plastic deformation Rp1,0 to 1.0% (turnover), in N/mm2||120||80||50||30||10||10 000 h|
Features 316 L at high temperatures
At high temperatures tensile strength
|Strength limit N/mm2 (tensile), Rp m||380||270||170||90||50|
The formation of scale. Temperature:
— the impact of intermittent 850oC;
— exposure to continuous 925oC;
Features 316 L at low temperatures:
|The temperature in the||°C||-161||-78||-196|
|Limit durable. m Rp, N/mm2 (tension)||N/mm2||1450/1200||1100/950||1600/1350|
The elastic limit. N/mm2 Rp 0,2, (0.2%), (flow
|The viscosity of the shock||J||160/160||180/175||155/150|
— Wednesday acid.
the examples given for certain acidic solutions, acids
|Temperature, in °C||20|
|To mass concentration, %||10||20||40||60||80||100|
|To mass concentration, %||10||20||40||60||80||100|
Treatment of thermal
The beginning of forging temperature .1150 — 1200 °C, the end. t°.950°C. the Period of time estimated to obtain a homogeneous heating of stainless steels longer than carbon-12. Relief (or release) method of autogene without showing deposition of carbide is in a temperature range of 450−800o C. thus, the departure from microlimano possible corrosion. Gradual lowering of the temperature necessary to safeguard the allocation of carbon. The annealing is carried out at t°1050 — 1150 °C cooling and the sharp intake of cool air, providing maximum ductility of the steel.
Due to its strength, this steel finds a variety of use. Typical operations include bending, forming by stretching, rotating and deep hood. At the time of molding using the same tools as for carbon steels. In this case, it will take much more effort is approximately 1.5−2 times. This makes babout thegreater degree of hardening when forming austenitic steel, but in certain cases may also serve as a negative factor.
During deep drawing of the workpiece to the press was not subjected to «braking», and give freely to pass in the instruments in practice, however, this happens not so often. For example, always takes place forming with stretching in the manufacture of the cookware. The material, which is subjected to deep drawing must have when forming a low degree of hardening, i.e. to be stable at the maximum, and the rate of Md30 (N) have to be «in the red». For kitchens stainless steel appliances are typically used so-called sub-tests of stainless steel stock as in the production of pots by deep drawing. In flow-forming machine rotary extractor means forming with the turning.
In the period of forming, stretching is subjected to a preset «inhibition». Its walls become very thin during forming, to avoid a gap, preferably of steel to provide the characteristics of high strengthening.
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Consumer demand is fully satisfied by the products that are produced in AISI 316 L company «AVEK global». The popularity of this type of products due high quality products, great variety and real value. Any our products are held absolute control throughout the manufacturing process, to guarantee absolute high quality of our steel products. Modern technological capabilities at any stage of production provide the opportunity to carry out individual orders in the absence of the required items in the basic version. The company «AVEK global» is always ready to produce high-quality steel non-standard options to order.