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Special Steel Products

 
Steel for Power Sector

Creep Resistance and High Temperature Steel, Turbine Blade Steel, Bolting Steel- Shroud Segment And Non Magnetic Steel for Steam/Gas Turbine.

Non Magnetic Steel

{A} Non Magnetic Steel for Generators
Grade
Mechanical Properties
Supply Condition
Sections
DIN
SEW390
(1.3805)
X35Mn18*
X120Mn12
Tensile
Strength

0.2% Proof
Stress
%
Elongation
Impact
Strength (J)
(N/mm2)
650-900
(N/mm2)
>240
>22 >55
800-1100 >350 <40 <150
Heat-Treated Solution-Annealed & in other Heat-Treated conditions can be supplied as per customer's requirement. Flats
40x25, 60x20, 30x06mm
The obve sizes are already developed & material can be rolled in other sections on request.

{A2} Austenetic Alloy Steel Bar for Tension Bolt for Power Turbines

Grade Mechanical Properties Supply Condition Sections
DIN
SEW390
(1.3805)
X40Mn
CrN19K
Tensile
Strength
0.2%
Proof
Stress
%Elon-
gation
%Red-
uction
in Area
Impact
Strength
(J)
850-1050
(N/mm2)
>500
(N/mm2)
>20 >40 >90
Solution-Annealed Material is supplied in cold drawn condition. Dia 16, 26, 30, 36, 40mm
The above size are already developed & material can be rolled in other sections On request.

{A3} Steel for Retaining Ring & Spring Forging

Grade Mechanical Properties Supply Condition Sections
HW 19372 X5CrMn1818
Proof Stress : 500N/MM2 Min.
Elongation : 39% Mini.
Reduction in area : 62% Mini.
Solution Annealed As per Drg.
No.440280-39009 R.00 & Drg. No. 31350400007


Blade Steel

{B1} Moving and Stationary Guides Blades for Steam Turbine

Grade Mechanical Properties Supply Condition Sections
DIN
(1.4021)
X20Cr13
Tensile
Strength
0.2%
Proof
Stress
%Elon-
gation
%Reduction
in Area
800-950
(N/mm2)
>600
(N/mm2)
>15 >50
Impact
Strength
(J)
Hardness  
>20 >280BHN
Hardened & Tempered Flats
42x24, 34x22, 34x19, 38x25mm
Dia  
70,90mm
The above sizes are already developed & material can be rolled in other sections on request.
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{B2} Moving and Stationary Guides Blades for Steam Turbine suitable at Working Temp 400-550°C

Grade Mechanical Properties Supply Condition Sections
DIN
(1.4923)
X22Cr
MoV121
Tensile
Strength
0.2%
Proof
Stress
%Elon-
gation
%Red-
uction
in Area
Impact
Strength
(J)
800-900
(N/mm2)
>600
(N/mm2)
>14 >40 >27
Hardness  
>280BHN
Hardened & Tempered Flats
42x24, 34x22, 34x19, 50x26mm
Dia  70,90mm
The above sizes are already developed & material can be rolled in other sections on request.


{B3} 310 N/MM2, 0.2% RP Low Carbon Rustless Steel Bar Turbine Guides Blades and Details

Grade Mechanical Properties Supply Condition Sections
BP 10793 Proof Stress : 310N/MM2 Min.
Tensile Strength : 495-620 N/MM2
Elongation : 22% Mini.
Reduction in area : 55% Mini.
Hardened & Tempered Rounds & Flats

{B4} Stainless Steel Bar (Martensitic) for general Engineering Purposes involving Stresses under Corrosive Conditions

Grade Mechanical Properties Supply Condition Sections
IS : 6603-1972
GR.15CR16NI2
Proof Stress : 64ON/MM2 Min.
Tensile Strength : 830-1030N/MM2
Elongation : 10% Mini.
Hardness : 248-302 (HB)
Hardened & Tempered Rounds

{B4} Steel for Steam Turbine Spacer Bands and Dia Phrame Blades

Grade Mechanical Properties Supply Condition Sections
BP 10688
Proof Stress : 31ON/MM2 Min.
Tensile Strength : 46ON/MM2 Mini.
Elongation : 20% Mini.
Hardness : 131 HB Mini.
Normalised& Tempered Flats


Creep Resistant Steel

{C1} Creep Resistant Steel for making Steam Turbine Bolts, Nuts, Studs, Spindles, Bushing Components
Operating at Temperature Range 480-540°C


Grade Mechanical Properties Supply Condition Sections
21CrMoV57
1%Cr3/4Mo
1/4V
Tensile
Strength
0.2%
Proof
Stress
%Elon-
gation
%Red-
uction
in Area
Impact
Strength
(J)
700-850
(N/mm2)
>550
(N/mm2)
>16 >60Long
-itudinal
>35Tran
-sverse
>63Long
-itudinal
>20Tran
-sverse
Hardened & Tempered and in other Heat-Treated conditions can be supplied as per customer's request. Dia  63, 70, 75, 90mm
RCS  75, 90mm
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{C2} Creep Resistant Steel for making Bolts, Nuts, Studs and other Components of Steam Power Plant
to Operate at Temperature Range 540-565°C


Grade Mechanical Properties Supply Condition Sections
1 1/4Cr1Mo
3/4VTiB
Tensile
Strength
0.2%
Proof
Stress
%Elon-
gation
%Red-
uction
in Area
Impact
Strength
(J)
>735
(N/mm2)
640-785
(N/mm2)
>15 >45 >40
Hardened & Tempered and in other Heat-Treated conditions can be supplied as per customer's request. Dia  63, 70, 75, 110, 125mm
RCS  70, 90mm

{C3} Creep Resistant Steel for Boiler Components

Grade Mechanical Properties Supply Condition Sections
SA 182 F11 Yield Strength : 205N/MM2 Min.
Elongation : 20% Mini.
Reduction in Area : 45% Mini.
Tensile Strength : 415N/MM2 Min.
Normalised & Tempered Rounds

Grade Mechanical Properties Supply Condition Sections
SA 182 F12 Yield Strength : 205N/MM2 Min.
Elongation : 20% Mini.
Reduction in Area : 45% Mini.
Tensile Strength : 415N/MM2 Min.
Normalised & Tempered Rounds

Grade Mechanical Properties Supply Condition Sections
SA 182 F22
Yield Strength : 205N/MM2 Min.
Elongation : 20% Mini.
Reduction in Area : 35% Mini.
Tensile Strength : 415N/MM2 Min.
Normalised & Tempered Rounds


Steel For Pressure Retaining Parts

{D1} Steel for Valve Stems and Other Components Operating High Level of Pressure and Temperatures

Grade Mechanical Properties Supply Condition Sections
X 19CRM
OVNBN111
Yield Strength : 784N/MM2 Mini.
Tensile Strength : 902-1049N/MM2 Elongation : 10% Mini.
Reduction in Area : 40% Mini.
Hardened & Tempered Rounds
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{D2} Steel for General Corrosion Resistance and High Temperature Service

Grade Mechanical Properties Supply Condition Sections
TP 304
Yield Strength : 205N/MM2 Mini.
Tensile Strength : 515N/MM2 Elongation : 40% Mini.
Reduction in Area : 50% Mini.
Solution Annealed Rounds & Flats

{D3} Steel for Manufacture of Labrinth Sealing Rings of Compressures

Grade
Mechanical Properties
Supply Condition
Sections
TP 316L
Yield Strength : 170N/MM2 Mini.
Tensile Strength : 485N/MM2 Elongation : 40% Mini.
Reduction in Area : 50% Mini.
Solution Annealed Rounds & Flats

{D4} Steel for Gas Turbines Nozzles Boroscope Plugs and Shroud Segments

Grade Mechanical Properties Supply Condition Sections
TP 310 Yield Strength : 205N/MM2 Mini.
Tensile Strength : 515N/MM2
Reduction in Area : 50% Mini. Elongation : 10% Mini.
Solution Annealed Rounds & Flats
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Steel For Hydro Turbine Applications

{E1} A Precipitation Hardening Martensitic Stainless Steel for Shafts, Blades, Fans, Pump Parts, Valves,
Fasteners and Transducers under Water Applicatins.


Grade Mechanical Properties Supply Condition Sections
FV 520B
Proof Stress: 800N/MM2 Mini.
Tensile Strength : 925-1080N/MM2 Elongation : 15% Mini.
Hardness : 276 to 321 BHN
Solution Annealed Flats & Rounds

{E2} NI-CR-MO Steel Bar for Heavy Duty Railway Motor Shafts

Grade Mechanical Properties Supply Condition Sections
BP 10590
IS:5517-1993
GR.31NI10
CRM06
Proof Stress: 800N/MM2 Mini.
Tensile Strength : 1000-115ON/MM2
Elongation : 12% Mini.
Hardness : 293-341 (HB)
Hardened & Tempered Rounds


Supply Conditions

As Rolled
Heat Treated (Hardened & Tempered, spherodised annealed etc)
Cold Drawn
Peeled / Ground


Testing

UT/MPI/DP Tested
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