High Vacuum Hardening to Cryogenic Treatment
Explore our full range of services including Vacuum Heat Treatment, Vacuum Tempering, Vacuum Annealing, and Sub-Zero treatment. We handle all tool steel grades including High Speed Steels, add Vacuum for Tempering & Annealing
in place of HSS - High Speed Steels &
Cold Work Steels, and Hot Die Steels with precision and repeatability.
A Trusted Name in Metallurgical Excellence
Built on a foundation of quality and innovation, we are ISO 9001:2015 certified and strictly adhere to NADCA & ASTM standards, ASM in standards with AS9100D certification in progress. As part of the Precision Metal Treaters Group, we bring decades of combined industrial project experience.
Request a Quote or Technical Consultation
Have a specific material or drawing? Contact our metallurgical experts today. We offer customized heat treatment cycles and free technical advice for your critical tooling needs.
MSCB
CAB # 011201
ICL/FM-001/REV07
High Vacuum Heat Treatment
Processing for Critical Components
Key Benefits:
processing for critical components
Minimum surface reactions
Ideal for critical aerospace and defense components
Superior metallurgical results
Cryogenic Treatment / Sub-Zero Treatment
Complete Martensitic Transformation for Enhanced Wear Resistance
Retained austenite in hardened steel can reduce dimensional stability and wear resistance. Our cryogenic treatment, Capable of reaching -120°C, converts retained austenite to martensite. This results in improved hardness, toughness, and dimensional stability, significantly extending tool life.
Key Benefits:
Converts retained austenite to martensite
Enhances wear resistance and toughness
Improves dimensional stability
Extends tool life
Capability
Chamber capable of attaining -120°C
Uncompromising Quality
Adhering to NADCA, ASM & ASTM Standards with ISO 9001:2015 certification for defect-free results.
Technological Innovation
PLC-automated furnaces with advanced SCADA-based monitoring for precision and repeatability.
Customer Partnership
Customized heat treatment solutions tailored to your specific material and application needs.
Metallurgical Expertise
Decades of experience handling heat treatment of all tool steel grades with through technical knowledge.
- Materials Served
Heat Treatment Materials We Handle
Hot Work Steels
HDS, H10A, H11, H12, H13, H21, ORVAR SUPREME,
DAC SERIES, DIEVAR,
ESKYLOS 2083, W300, W302, W360, SKD SERIES,
DAC SERIES, HP SERIES, CALMAX, 17-4 PH and more.
Cold Work Steels
D2, D6, DC53, STAVAX ESR(1.2083), 15-5 PH, A2, K110, SLD, SWERKER 21, SKD11, SKD21, SV3 and other cold work grades.
High Speed Steels
M2, M35, M42, T42, T2, VANADIS 10, SKH51, ASP Grades, S390, S600, YXR33 and more.
Stainless & Plastic Mould Steels
SS420, SS440C, Precipitation Hardening Stainless Steels, M300, P20, 1.2311, 1.2738, HPM Series, NIMAX and more.
Years of Industrial Experience
- Who We Are
PMTLEE Vacuum Technologies Since 2013
Founded by M.V Sudhakar M-Tech, PMTLEE Vacuum Technologies has established itself, along with PMT & SMT, as a trusted partner for precise heat treatment solutions. We specialize in vacuum heat treatment, cryogenic processing, and conventional methods for all tool steel grades including HSS, Cold Work, and Hot Die Steels. Operating in compliance with NADCAP, ASM & ASTM Standards and certified under ISO 9001:2015, we ensure every project meets the highest metallurgical standards.
State-of-the-Art Infrastructure
Fully PLC-automated vacuum furnaces, cryogenic chambers capable of -120°C, and SCADA-based process monitoring for complete traceability and repeatability.
Part of a Trusted Group
Backed by the legacy of Precision Metal Treaters and Sushmitha Metal Treaters, we bring decades of combined industry expertise to every heat treatment cycle.
- What We Do
Comprehensive Heat Treatment Solutions
From vacuum processing to cryogenic treatment, we offer a full range of precision heat treatment services for all tool steel grades.
TTT Diagrams
Fe-C Diagram /
Iron Carbon Diagram
Effects of Alloying Elements
- Our Achievements
- Years
Industry Experience
- Parts
Components Treated
- Team
Our Team
- Clients
Satisfied Customers
- ISO 9001:2015
Certified Excellence
- Our Machinery
State-of-the-Art Infrastructure
01
Vacuum Hardening/Tempering Furnace
02
Atmospheric Tempering Furnace
03
Cryogenic / Sub-Zero Chamber
04
Industrial Oven
05
PLC Automation System
06
SCADA Process Monitoring
- Why Choose Us
The PMTLEE Mark
Why Industry Leaders Trust Us
Advanced Technology
PLC-automated vacuum furnaces within ±5°C temperature uniformity for distortion-free results
Certified Quality
ISO 9001:2015 certified | Adhering to NADCAP, ASM & ASTM Standards | PLC automated with SCADA-based monitoring and data traceability
Trusted Legacy
Backed by decades of experience in Managing Precision Metal Treaters and Sushmitha Metal Treaters
Complete Services
End-to-end solutions from vacuum hardening and cryogenic treatment to tempering and annealing under one roof
Material Expertise
Comprehensive knowledge of HSS, Cold Work, Hot Die, and Stainless Steels including ASP, VANADIS, and DIEVAR grades etc.
Custom Solutions
Tailored heat treatment cycles developed specifically for your material grade and application requirements
- Who We Serve
Our Clientele
Industries That Trust Us
Tool & Die
Automotive
Aerospace
Defense
Plastic Moulding
General Engineering
Manufacturing
Customized Job Work
- Our Working Process
How It Works
Your Journey from Inquiry to Delivery
Step 01
Discuss Your Requirements
Share your material grade, drawing, or specific heat treatment needs. Our metallurgical experts provide technical advice and recommend the optimal process.
Step 02
Incoming Quality Check
Upon receipt, your components are thoroughly inspected for surface condition, dimensions, and material identification before processing begins.
Step 03
Custom Cycle Development
We select or create the precise time-temperature cycle, programmed into our PLC-automated furnaces for complete procedure and future repeatability.
Step 04
Precise Processing
Your components undergo vacuum hardening, cryogenic treatment, tempering, or other required processes with SCADA based monitoring and within ±5°C temperature uniformity.
Step 05
Metallurgical Verification
Post-treatment inspection includes hardness testing, surface cleanliness, and dimensional checks to ensure compliance with specifications.
Step 06
On-Time Delivery
Treated components are carefully packed and dispatched along with a detailed heat treatment report and data traceability documents
- Client Feedback