Vardhman Special Steels Commitment to Quality Vardhman Special Steels

QUALITY

Ensuring Consistent High Quality

- Quality Philosophy
- Inspection & Testing
- Quality Offer

  Ensuring High Quality
Ensuring High Quality


Quality Philosophy

In order to achieve total customer satisfaction it is important to meet their expectations in terms of quality and prompt, professional response to their needs. It is this belief that makes Vardhman fully geared to provide pre and post sales technical support to it's customers including assistance in material selection.

To ensure the right quality, Vardhman Special Steels has been quick to incorporate state-of-the-art technology in its quality control programme. At first, the process parameters and conditions are developed. Later, these are constantly monitored throughout the entire manufacturing process. The quality parameters are repeated within a narrow range from heat to heat. The final produce is then inspected and tested to ensure compliance with the customer's requirement. Appropriate statistical quality control systems and the latest testing facilities are the hallmarks of Vardhman's Quality Assurance Department.

Inspection & Testing Facilities
Spectrometer- Jarrell Ash, atomcomp 7000 & atomcomp 81. Metallurgical microscope with photographic arrangements.
Chemical laboratory equipped with LECO for Oxygen & Nitrogen analysis. Jominy & Blue fracture testing facilities.
40 T Universal testing machine. Ultrasonic flaw detectors.
Impact testing machine Metascope
Arcmet-930 Mobile Spectometer Megna flux machine
Quality Offer

Technical Specifications
  PARAMETERS SPECIFICATION
1. Chemical Analysis. As per ASTM/DIN/JIS/BS/IS standards and special customer requirement of restricted chemistery
2. Macro Streak Flaw Free from streaks
3. Internal Soundness Conform to grade C2, R2, S2 max. as per ASTM E 381.
4. Austenetic Grain Size Carburising Steel: MC-Quaid Ehn 5-8 (ASTM).
Non Carburising Steel: ASTM 5-8 (Oxidising).
5. Hardenability 2/3rd of standard hardenability band as per SAE J406-1995
6. Inclusion Rating
(Thin/Thick)
As per ASTM E-45A/
IS 4163 - 1982
Type Bearing Steel
Other Steels
A 2.0/0.0 2.5/0.0
B 1.0/0.0 1.0/0.0
C 0.0/0.0 1.0/0.0
D 0.5/0.5 2.0/0.0
7. Mechanical Testing
a) Tensile Testing
b) Impact Testing
As per customers' specification.
As per customers' specification.
8. Micro Structure As per customers' specification.
9. Surface (Hot Rolled Bar) Surface defects max. 1.0% of section dimension or 0.5mm whichever is less.
10.

Gas Levels



Steel
Category

in ppm
VD Steels
Oxygen Nitrogen Hydrogen
(Residual)
a) Case Carburising 20 70-100 2.0
b) Through Hardening 15 80 2.0
c) Bearing 12 70 2.0

 

 

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