Transcript RESEARCH & DEVELOPMENT DEPARTMENT

RESEARCH &
DEVELOPMENT
DEPARTMENT
JINDAL STAINLESS LIMITED
Research and Development
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Development of value added products
Process improvement
Cost reduction
Quality up gradation
Development of new process route
Product Development
- Austenitic Stainless Steels- 300 Series
 Heat resistant stainless steels- 309S, 30815
Monophase Austenitics: 310S, X8 Cr Ni Nb 16 13
 Corrosion Resistant S.S.- 316, 316L, 317,317L
 Stabilized Stainless Steels 321, 347
 High Purity Stainless Steel for Nuclear Applications
PRODUCT DEVELOPMENT
304 L (NAG)
• Very low inclusion level : (A+B+C+D<4)
• IGC Practice C : < 5 mpy
PRODUCT DEVELOPMENT
Indian Railways & Delhi Metro
301, 301 L – different tempers
• High strength and good corrosion
résistance
409 M
• Used for making railway wagons,
superior to CORTEN steel
PRODUCT DEVELOPMENT
Ferritic Stainless Steels
Automotive Stainless Steel
• 409L, 436L
• Exhaust muffler of automobile
• The composition and the heat treatment been
tailored to achieve excellent formability
• Supplied for the manufacturing of car like
Santro and Palio
PRODUCT DEVELOPMENT
Ferritic Stainless Steels
SS-430 coin blanks
• Mint – Govt. of India
• French Mint
• Commissioning of blanking, rimming,
blank annealing and polishing line
• Designing chemical composition to
achieve hardness < 150 VPN
• Finish : Bright annealed
Martensitic Stainless Steels
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403
405
410 / 410S/ 410DB
415
420
Razor Blade Steel
PRODUCT DEVELOPMENT
JBS Y – Razor Blade Steel
• 0.10 mm x 22.2 mm strips
• Fine primary carbide
• Secondary Carbide distribution : 50 –
60/100 micron2
Duplex Stainless Steels
• The only producer in India
• Having dual microstructure of ferrite and
austenite.
• 2205: 22Cr-5Ni-3Mo
Extensive application in sour gas piping,
offshore drilling rigs, marine structures.
• 2304: 23Cr, 4Ni
For Paper & Pulp Industry
Austenitic Cr-Mn Stainless Steels
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Ni Free J 15Cr:
J 4:
J 204Cu:
AISI 201:
JSL AUS (J1):
AISI 202:
J 204:
15Cr-10Mn-1.5Cu
15.5 Cr. 9Mn-1Ni-1.5Cu
16Cr-1.5Ni-2Cu
16Cr-4Ni
16Cr-4Ni-1.5Cu
17Cr-4Ni
18Cr-4.5 Ni
Jindal stainless has now developed a grade J204 which
matches corrosion resistance of 304 in a variety of media
C
Mn
J204
≤ 0.07 4.5-6.5
X5CrNi18-10 ≤ 0.07
≤ 2.0
AISI 304
≤ 0.08 ≤ 2.0
Grade
Cr
17.5-19.5
17.0-19.5
18.0-20.0
Ni
N
4.0-6.0 ≤0.20
8.0-10.5 ≤0.11
8.0-10.5
Suitable for many industrial applications:
Grade
J204
304
C
0.062
0.043
Mn
6.25
0.92
Cr
17.75
18.01
Ni
4.46
8.85
N
0.16
0.05
500X
204 (weld zone)
500X
304 (weld zone)