Jindal Stainless develops Superior Machinable stainless steel grade 316F  - Jindal Stainless
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Jindal Stainless develops Superior Machinable stainless steel grade 316F 

August 3, 2022    

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Jindal Stainless R&D team had recently interacted with one of the premium customers to understand the key basic requirement of enhanced machinability of 316 grade in pulp & paper component manufacturing and catered with SS 316F ( Sulphur 0.2%) where in the customer’s key requirement was of longer tool life with higher cutting speeds. The customer was earlier importing the entire component for paper and pulp industry.  

After sustained R&D efforts, we are proud to have indigenously developed and manufactured grade 316F stainless steel in sheet and plate form. 

Grade 316F, commonly termed as free-machining austenitic stainless steel, contains high sulphur (0.2%S) as an alloying element. This grade also contains Mo for improved pitting corrosion. Sulphur along with manganese forms the manganese sulphide (MnS) compound, which causes chip-off more readily while machining.

316F finds its application where material with high machinability is required. Wear and tear of tools is almost 41% lower in comparison to SS 316L when compared with SS 316F.  

The grade is majorly used in fabrication of various component involving machining typical used in various process industry segment (Food & Beverage, Pharmaceutical, Pulp & Paper, Fertilier etc)  and pharmaceutical processing equipment, marine exterior trim and industrial equipment that handle the corrosive process chemicals used to produce inks, rayons, photographic chemicals, paper, textiles and bleaches.

Machining ParametersCharacteristics304L316L316F
Spindle Speed: 400 RPMCutting Speed:
100 m/min Depth of cut: 2 mm



Chip Geometry


Longer helical chips segmentsLonger helical chips segmentsSmaller spiral segments
Surface Roughness Ra (µm)3.43.92.5
Tool Wear (μm)9313263


Spindle Speed: 200 RPMCutting Speed: 50 m/minDepth of cut: 1 mm



Chip Geometry

Smaller spiral segmentsLonger helical chips segmentsSmaller spiral segments
Surface Roughness Ra (µm)2.83.61.8
Tool Wear (μm)394828

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https://stainlessmart.jindalstainless.com/login

For any product/order enquiry, please reach out to our sales leaders mentioned below:

RegionName Email IDTel
All regions Mr Devender Devgundevender.devgun@jindalstainless.com+91-8800699454

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