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PennMet 2000

Penn Stainless Products offers a unique product for the machining industry – in stainless steel Round, Square and Hex bars. Our proprietary grades of stainless steel machining bars in 304/L and 316/L are melted to a uniquely controlled chemistry to produce optimal machining characteristics: faster cutting speeds, reduced tool wear, and lower cost parts.

PennMet 2000 – Superior Stainless

  • Improved Machinability
  • Consistent Performance from Lot to Lot
  • Improved Surface Finish
  • Increased Feeds and Speeds
  • Superior Chip Control
  • Longer Tool Life

 

Machining Operations

TurningMillingDrillingThreading
Forming – HSS
and carbide
SawingParting Off

Improved Machinability:

PennMet 2000 – A SPECIAL PROCESS FOR A SPECIAL STEEL QUALITY

  • Process applied austenitic stainless steel bar resulting in optimal machinability.
  • Meets all standard specifications requirements of ASTM & ASME for applicable grades.
  • Ladle metallurgy to control composition, amount, size, shape and distribution of nonmetallic inclusions.
  • Can machine at higher speeds and feeds – increase size of machining window.

V1000 – Machining test showing cutting speed that gives a tool lifetime of 1000mm drilled length.

PennMet Treatment

  • Deoxidation during standard stainless steel melting results in comparatively large Al2O3 inclusions.
  • Typically more than 1,000,000 inclusions/lb.
  • These inclusions are very hard. For reference carbide tools are coated with Al2O3 for wear resistance.
  • PennMet treatment improves the composition, size, shape and distribution of these inclusions.

 

Benefit of PennMet at Higher Speeds

Results of PennMet 304 vs Standard 304

PennMet works for drilling

0.030% Sulfur content helps but…Pre-treatment is more important

 

Problem – Higher tool wear and long production time

Solution – PM 2000 enabled the machines to increase feeds and speeds by 70% to 80% and reduce part wear. The customer saved $1.68 to $14.50 per component and increased overall productivity by 30% to 54%.

 

Sample Test A Report: Adapter, Rough OD Common 316/316L vs PennMet 316/316L

PENN STAINLESS TEST REPORT – DATE: 7/17/2014  
TurningRough Outside DiameterIssued by: DNL
Machine: Mazak Dual Turn 20Machine #: 12Test #: 1
Component: HousingMaterial:
PennMet 316/316L
Material:
Common 316/316L
Operation: Rough Turn ODHardness, hB:
180 – 240
Hardness, hB:
180 – 240
% of increase
Cutting Speed60050083%
RPM115095083%
Feed/rev.0.0130.0177%
Depth of Cut0.0070.03550%
Length of Cut714200%
Criterion tool changeFlankFlank
Machine Cost/Hour$100.00$100.00
Cutting time/component (mins)0.471.47315%
Non cutting time/component (mins)22
No. of components/set of edges 2512
Tool changing time (mins)22
Total time/component (mins)2.553.6430%
Machine cost/component$4.11$5.7929%
Total machining cost/component$4.11$5.7929%
Productivity increase %30%
Savings/component$1.68

Sample Test B Report: Housing, Rough Turn OD Common 316/316L vs PennMet 316/316L

Penn Stainless Test Report – Date: 7/18/2014  
TurningOutside Diameter Issued by: DNL
Machine: Okuma LB 25Machine #2Test #1
Component: HousingMaterial:
PennMet 316/316L
Material:
Common 316/316L
Operation: Rough Turn ODHardness, hB:
180 – 240
Hardness, hB:
180 – 240
% of increase
Cutting Speed45030067%
RPM21514567%
Feed/rev.0.0110.00873%
Depth of Cut0.150.167%
Length of Cut1015150%
Criterion tool changeFlankFlank
Machine Cost/Hour$100.00$100.00
Cutting time/component (mins)4.2312.93306%
Non cutting time/component (mins)33
No. of components/set of edges42
Tool changing time (mins)22
Total time/component (mins)7.7316.9354%
Machine cost/component$12.05$26.5555%
Productivity increase %54%
Savings/component$14.50
PennMet 2000 PDF
PennMet 2000 - A PDF
PennMet 2000 – B PDF
PennMet 2000 – C PDF