1.4439 - aisi 317 LMn pipe, wire, circle
This grade is a low-carbon molybdenum austenitic stainless steel much more resistant to the action of chemical reagents compared to conventional stainless chromium-nickel austenitic steels. It combines high strength, good fatigue resistance with good heat resistance.
Percent composition, EN 10095−1999
|basis||≤0.04||≤1.0||≤1.5||≤0.045||≤0.03||16.5 — 18.5||4.0 — 4.5||12.5 — 14.5||0.12 — 0.22|
Physical propertiesDensity: 7.93 g / cm3 Low carbon content provides resistance to intergranular corrosion in those cases where heavy volumetric parts can not be annealed after welding to relieve stress.
It can be hot-worked with heating to 400−500 ° C. To facilitate instrumental processing, the sulfur content is recommended from 0.015% to 0.03%. Cutting edges with a special coating should be used. To facilitate grinding, a controlled sulfur content of 0.015% max is recommended.
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