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Black / Bright 317LMN 12mm Stainless Steel Rod Hard Treatment DIN 1.4439

Black / Bright 317LMN 12mm Stainless Steel Rod Hard Treatment DIN 1.4439

Brand Name : Walsin
Model Number : 317LMN
Certification : ISO
Place of Origin : China,Shanghai
MOQ : 1 Tons
Price : 5000 USD/Ton
Payment Terms : L/C, T/T
Supply Ability : 100 Tons / Month
Delivery Time : Within 10 days
Packaging Details : good packing suit for stainless steel round bar export
Products : 317LMN stainless steel round bar
Shape : Round
Diameter : 12 - 200mm
Length : 6 Meters or as request
Surface : Black, polished
Service : cutting, hard treatment
Standard : ASTM GB JIS EN
Type : hot rolled
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317LMN Stainless Steel Round Bar Black / Bright Round Bars DIN 1.4439 Round Bar

Name317LMN stainless steel round bargrade317LMN
SurfaceBlack / polishedDiameter12 - 200mm
Length6 meters or as requiredBrandWalsin


Itemstainless steel round bar
Material317Lmn stainless steel
Whole Grade304, 304L, 316, 316L, 316Ti, 317, 317L, 321, 309S, 310S, 409, 410S, 420, 430, 201, 202, 904L 2205 2507.etc
SurfaceBlack, Bright, Polished, Hair Line, etc.
Finishcold drown, cold rolled, hot rolled, forged
Lengthas required
Productivity100 tons/month
Applicationpetroleum & chemical industries, construction field, machinery and hardware fields, food processing and medical industry, high or low temperature resistant, electricity industries, etc.
PackingStandard export packages, custom suffocating free.
PaymentUsually 30% of the amount by T/T as deposit , and the balance 70% by T/T after got the copy B/L
Delivery Timewithin 10 days from confirmed order.
MOQ1 ton
Notestainless steel bars/rods can be made according to the customers' requirements.

Introduce of 317L stainless steel

Alloy 317LMN (UNS S31726) is an austenitic chromium-nickel-molybdenum stainless steel with corrosion resistance superior to 316L and 317L. The higher molybdenum content, combined with an addition of nitrogen, provides the alloy with its enhanced corrosion resistance, especially in acidic chloride containing service. The combination of molybdenum and nitrogen also improves the alloys resistance to pitting and crevice corrosion.

The nitrogen content of Alloy 317LMN acts as a strengthening agent giving it a higher yield strength than 317L .Alloy 317LMN is also a low carbon grade which enables it to be used in the as-welded condition free from chromium carbide precipitation on the grain boundaries.

Alloy 317LMN is non-magnetic in the annealed condition. It cannot be hardened by heat treatment, only by cold working. The alloy can be easily welded and processed by standard shop fabrication practices.

Corrosion Resistance

  • Good resistance to mildly corrosive atmospheres, but significantly less than Alloy 304
  • When additional sulfur is added to improve machinability, it can often slightly reduce corrosion resistance
  • In most dry and mild corrosive environments, Alloy 303 is comparable to other unmodified alloys
  • Should not be exposed to moist, marine environments as it is subject to rapid-pitting corrosion and a rust film will tend to form
  • Like other common austenitic stainless steels, it is subject to corrosion cracking in chloride environments above 60oC

Heat Resistance

  • Good oxidation resistance at temperatures up to 1700oF (927 oC)
  • Continuous use at temperatures above 1400oF (760oC) is not usually recommended due to carbide precipitation which can lead to irregular scaling
  • Does not have a low carbon content so it is also vulnerable to sensitisation

Welding Characteristics

  • Not generally recommended, but may be welded with some difficulty
  • May be welded with Alloy 310 electrodes
  • Should be annealed after welding to re-dissolve precipitated carbides


  • High machining rates can be obtained in the annealed condition with hardness in the range of 200 to 240 Brinell
  • Will work harden, therefore, it should be machined at reduced surface feet per minute and heavier feeds to prevent glazing at the tool interface

Chemical Properties:

303min: 17.0
min: 8.0
max: 10.0

Mechanical Properties:

GradeTensile Strength
ksi (min.)
Yield Strength 0.2%
Offset ksi (min.)
Elongation -
% in
50 mm (min.)
(Brinell) MAX
(Rockwell B) MAX

Physical Properties:

Coefficient of
Thermal Expansion (min/in)-°F
Electrical Resistivity mW-inThermal Conductivity BTU/hr-ft-°FMelting
at 68 °Fat 68 – 212°Fat 68 – 932°Fat 68 – 1450°Fat 68°Fat 212°Fat 392°Fat 752°Fat 1112°Fat 1472°Fat 68 – 212°F°F


  • Air Pollution Control—flue gas desulfurization systems, stack liners, absorbers, ducts, dampers, and fans
  • Chemical and Petrochemical Processing
  • Food and Beverage Processing
  • Pharmaceutical Equipment

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