Alloy Steel Pipe Fittings suppliers in UK

Alloy steel buttweld fittings stockist in UK, Alloy steel weld fittings stockholder in UK, trader of AS Fittings, Alloy steel elbow

Schedule 160 pipe fittings suppliers in UK, Distributors of ASTM A234 WP5, WP9, WP11, WP22, WP91 SEAMLESS Alloy Steel Buttweld Pipe Fittings in UK, Importers of ASTM A234 WP5 fittings in UK, ASTM A234 WP11 fittings in UK, ASTM 234 WP22 Fittings, ASTM A234 WP91 pipe fitting, Alloy Steel ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 ELBOW, TEE, REDUCER, END CAP, BENDS, ansi b16 9 elbow manufacturers in India

MD Exports LLP is a manufacturer & supplier of a huge range of Alloy Steel Pipe Fittings such as Buttweld (BW) fittings, Socket Weld (SW) fittings, Threaded (THD), screwed fittings, tube fittings, instrumentation fittings, dairy fittings, Long and Short Radius Elbows in UK. Our stock range is substantial and includes many bespoke or dedicated items as well as the full range of all standard industrial fittings such as Elbow 90° long radius, Elbow 45°, Elbow 90° short radius, Elbow 180° long radius, Elbow 180° short radius, Tee straight, Tee reducing, Reducer concentric, Reducer eccentric, End cap, Lap joint Stub End in Alloy Steel in UK.

MD Exports LLP is a leading Seamless and ERW Buttweld ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Pipe Fittings manufacturer in India. We have more than 18,000 products in stock. Order by the piece, bag or in bulk. A trusted company manufacturing and supplying ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Seamless, Welded Buttweld Fittings across UK.

MD Exports LLP is manufacturing high pressure alloy steel pipe fittings for Civil Construction, Petro Chemical Industry, Power and Energy sector, Gas & Pipeline Industry, Automotive and Automobile Industry in UK.

Our sales agents are available in below locations in United Kingdom

London, United Kingdom
Birmingham, United Kingdom
Glasgow, United Kingdom
Belfast, United Kingdom
Liverpool, United Kingdom
Leeds, United Kingdom
Sheffield, United Kingdom
Edinburgh, United Kingdom
Bristol, United Kingdom
Manchester, United Kingdom
Leicester, United Kingdom
Coventry, United Kingdom
Kingston upon Hull, United Kingdom
Cardiff, United Kingdom
Bradford, United Kingdom

Our esteemed clients in United Kingdom

  • OFFSHORE UK NORTH SEA
    NETHERLANDS
  • NEXEN PETROLEUM UK LTD
    NETHERLANDS
  • Bressenden Place
    London
    SW1E 5BH, United Kingdom
  • BAE Systems
    London, United Kingdom

Alloy Steel Pipe Fittings UK

Alloy Steel Fittings are divided into three groups:

  • Alloy Steel Buttweld (BW) fittings whose dimensions, dimensional tolerances et cetera are defined in the ASME B16.9 standards. Light-weight corrosion resistant fittings are made to MSS SP43.
  • Alloy Steel Socket Weld (SW) fittings Class 3000, 6000, 9000 are defined in the ASME B16.11 standards.
  • Alloy Steel Threaded (THD), screwed fittings Class 2000, 3000, 6000 are defined in the ASME B16.11 standards.
Alloy Steel Fittings Specification ASTM A234, ASME SA234
Alloy Steel Fittings Grades
  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91
  • SA-234 WPB, WPC, WP1, WP5, WP7, WP9, WP11CL7, WP12CL1, WP22, WP91
  • ASTM A-234 WP1, WP11 CL1, WP11 CL3, WP12 CL1, WP22 CL1, WP22 CL3
  • ASME A-234 WP5, WP9, WP11, WP12, WP22, WP91
Alloy Steel Fittings Type Seamless / Welded / Fabricated
Alloy Steel Fittings Size Size: Buttweld : 1/2” – 24”, Thread : 1/2” – 8”, Socket Weld :1/2” – 8”
Alloy Steel Fittings Range ½" NB to 48" NB in Sch 10s, 40s, 80s, 160s, XXS.
Alloy Steel Fittings Pressure Rating Buttweld : SCH 10 – SCH XXS
Buttweld : SCH 5S, SCH 10, SCH 10S, SCH 20, SCH 40, SCH 40S, SCH 80, SCH 80S, SCH 120, SCH 160, SCH XX, SCH XS.
Alloy Steel Fittings Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43.
Specialized manufacturer of Alloy Steel Fittings
  • Alloy Steel Elbow 90° long radius
  • Alloy Steel Elbow 45°
  • Alloy Steel Elbow 90° short radius
  • Alloy Steel Elbow 180° long radius
  • Alloy Steel Elbow 180° short radius
  • Alloy Steel Tee straight
  • Alloy Steel Tee reducing
  • Alloy Steel Reducer concentric
  • Alloy Steel Reducer eccentric
  • Alloy Steel End cap
  • Alloy Steel Lap joint Stub End
Types of Alloy Steel Butt weld Fittings Equal Tee, Nipple, Long Radius Elbow, Reducing Tee, Elbows, Swage Nipple, Short Radius Elbow, Reducer, Barrel Nipple, 90 Deg Elbow, Concentric Reducer, Reducing Nipple, 45 Deg Elbows, Eccentric Reducer, Bend, 180 Deg Elbow, End Cap, 1D Elbow, 3D Elbow, Stubend, 5D Elbow, Cap, Piggable Bend, Long Stubend, Tee, Short Stubend, Long Radius Bend.
  ANSI B16.9
ANSI B16.28
MSS-SP 75
MSS-SP 43
DIN 2605, 2625, 2626, 2617
BS 1640
Alloy Steel Fittings End Connection
Alloy Steel Fittings Type Nomen.
Butt Weld BW
Socket Weld SW
NPT Thread (Male) NM
BSP Thread (Male) BM
NPT Thread (Female) NF
BSP Thread (female) BF
Plain End PL
Bevel End BE

Buttweld Alloy Steel Pipe Fittings Suppliers in UK

Seamless/ Welded Fittings 100% Radiography Tested

Products Size
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Elbows – Long Radius ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Stub Ends

Sizes 1/2" – 36"

ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Elbows – Short Radius ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Crosses
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Reducing Elbows ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Reducing Crosses
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 45° Elbows ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 180° LR Return Bends
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Tees ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 180° SR Return Bends
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Tees ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Pipe Bends / Piggable Bends
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Reducers ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Couplings
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Concentric Reducers ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Pipe Nipples
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Eccentric Reducers ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Forged/Plate Cut Rings
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 3D Elbow ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 End Caps
ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 5D Elbow Alloy Steel Forged / Plate Circles

Alloy Steel Pipe Fittings Price in UK

Alloy Steel Fittings Price List, ASTM A234 Fittings Price in UK, ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Fittings Prices, AS Pipe Fittings Price List In India

Description Size Aprox. Wt/Unit FOB 
INR
CIF
INR
FOB
USD
CIF
USD
FOB
STGP
CIF
STGP
FOB
EURO$
CIF
EURO$
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
15mm
0.05
25.30
27.50
0.383
0.417
0.258
0.281
0.460
0.500
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
20mm
0.05
27.60
30.00
0.418
0.455
0.282
0.306
0.502
0.545
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
25mm
0.16
36.80
40.00
0.558
0.606
0.376
0.408
0.669
0.727
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
32mm
0.27
52.90
57.50
0.802
0.871
0.540
0.587
0.962
1.045
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
40mm
0.40
66.70
72.50
1.011
1.098
0.681
0.740
1.213
1.318
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
50mm
0.71
115.00
125.00
1.742
1.894
1.173
1.276
2.091
2.273
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
65mm
1.37
248.40
270.00
3.764
4.091
2.535
2.755
4.516
4.909
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
80MM
2.18
318.55
346.25
4.827
5.246
3.251
3.533
5.792
6.295
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
100mm
4.15
637.10
692.50
9.653
10.492
6.501
7.066
11.584
12.591
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
125mm
7.00
970.60
1055.00
14.706
15.985
9.904
10.765
17.647
19.182
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
150mm
10.92
1397.25
1518.75
21.170
23.011
14.258
15.497
25.405
27.614
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
200mm
21.95
2949.75
3206.25
44.693
48.580
30.099
32.717
53.632
58.295
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
250mm
38.85
4812.75
5231.25
72.920
79.261
49.110
53.380
87.505
95.114
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
300mm
63.07
7452.00
8100.00
112.909
122.727
76.041
82.653
135.491
147.273
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
350mm
87.21
11178.00
12150.00
169.364
184.091
114.061
123.980
203.236
220.909
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
400mm
126.21
16301.25
17718.75
246.989
268.466
166.339
180.804
296.386
322.159
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
450mm
185.02
23287.50
25312.50
352.841
383.523
237.628
258.291
423.409
460.227
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
500mm
241.17
36483.75
39656.25
552.784
600.852
372.283
404.656
663.341
721.023
ASTM A234 GR. WPB B16.9 BW R=1.5D, SCH-40
600mm
403.31
58995.00
64125.00
893.864
971.591
601.990
654.337
1072.636
1165.909

Click here for more Alloy Steel Pipe Fittings Price

RFQ

Manufacture & supply ASTM A234 Alloy Steel Pipe Fittings in the following forms:

  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Elbows 45˚ and 90˚ – long radius and short radius
  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Return bends 180˚ – long radius and short radius
  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Reducers – concentric and eccentric
  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Tees – equal and reducing
  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Caps
  • ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Stub ends – Type B, to MSS SP-43
  • MSS SP-25 standard Threaded Fittings, Flanged Fittings
  • ASME B16.9 Factory-Made Wrought Steel Buttwelding Fittings
  • ASME B16.11 Forged Fittings, Socket Welding and Threaded Fittings
  • Straight, Seamless / Welded / Fabricated Fittings
  • Alloy Steel butt weld fittings: Sch 5s Fittings, Sch 10s Fittings, Sch 40s Fittings, Sch 80s Fittings, Sch 160s Fittings, Sch XXS Fittings manufacturers in India
  • ASME A-234 WP5, WP9, WP11, WP12, WP22, WP91
    CHROME-MOLY ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS.

We offer special price in UK for:

  • Alloy Steel tube fittings, Alloy Steel pipes and fittings, Alloy Steel tee fittings, Alloy Steel reducing tee, Alloy Steel pipe reducer, Alloy Steel tube weld fittings, Alloy Steel elbow, Alloy Steel 90 degree elbow, Alloy Steel fittings, Alloy Steel concentric reducer, Alloy Steel tee, Alloy Steel eccentric reducer, Wp22 pipe fittings, Alloy Steel buttweld fittings

Alloy Steel Pipe Fittings Grades

Alloy Steel Pipe Fittings For Sale in UK

ALLOY STEEL PIPE FITTINGS DIMENSIONS

Alloy Steel Weld Fittings – ANSI/ASME B36.19
Dimensions of alloy steel weld fittings according ANSI/ASME B36.19

Alloy Steel Elbows and Returns Suppliers in UK
Nominal
Pipe
Size
(inches)
Outside
Diameter
90° Elbows 45° Elbows 180° Returns
Long Radius Short Radius Long Radius Long Radius
(mm) (inches) Center to Face
(inches)
Center to Face
(inches)
Center to Face
(inches)
Radius
(inches)
Center to Center
(inches)
Back to face
(inches)
1/2 21.3 0.840 1 1/2 5/8   2 1 7/8
3/4 26.7 1.050 1 1/8 7/16   2 1/4 1 11/16
1 33.4 1.315 1 1/2 1 7/8   3 2 3/16
1 1/4 42.2 1.660 1 7/8 1 1/4 1   3 3/4 2 3/4
1 1/2 48.3 1.900 2 1/4 1 1/2 1 1/8 3 4 1/2 3 1/4
2 60.3 2.375 3 2 1 3/8 4 6 4 3/16
2 1/2 73.0 2.875 3 3/4 2 1/2 1 3/4 5 7 1/2 5 3/16
3 88.9 3.500 4 1/2 3 2 6 9 6 1/4
3 1/2 101.6 4.000 5 1/4 3 1/2 2 1/4 7 10 1/2 7 1/4
4 114.3 4.500 6 4 2 1/2 8 12 8 1/4
5 141.3 5.563 7 1/2 5 3 1/8 10 15 10 5/16
6 168.3 6.625 9 6 3 3/4 12 18 12 5/16
8 219.1 8.625 12 8 5 12 24 16 5/16
10 273.1 10.750 15 10 6 1/4 15 30 20 3/8
12 323.9 12.750 18 12 7 1/2 18 36 24 3/8

Alloy Steel Tees, Caps, Stub Ends and Straight Crosses Suppliers in UK

Nominal
Pipe
Size
(inches)
Outside
Diameter
Caps Straight Tees Straight Crosses Stub Ends
(mm) (inches) Length
(inches)
Center to End
(inches)
Center to End
(inches)
Lap Diameter
(inches)
Long Length
(inches)
Short Length
(inches)
1/2 21.3 0.840 1 1 1 3/8 3 2
3/4 26.7 1.050 1 1 1/8 1 11/16 3 2
1 33.4 1.315 1 1/2 1 1/2 1 1/2 2 4 2
1 1/4 42.2 1.660 1 1/2 1 7/8 1 7/8 2 1/2 4 2
1 1/2 48.3 1.900 1 1/2 2 1/4 2 1/4 2 7/8 4 2
2 60.3 2.375 1 1/2 2 1/2 2 1/2 3 5/8 6 2 1/2
2 1/2 73.0 2.875 1 1/2 3 3 4 1/8 6 2 1/2
3 88.9 3.500 2 3 3/8 3 3/8 5 6 2 1/2
3 1/2 101.6 4.000 2 1/2 3 3/4 3 3/4 5 1/2 6 3
4 114.3 4.500 2 1/2 4 1/8 4 1/8 6 3/16 6 3
5 141.3 5.563 3 4 7/8 4 7/8 7 5/16 8 3
6 168.3 6.625 3 1/2 5 5/8 5 5/8 8 1/2 8 3 1/2
8 219.1 8.625 4 7 7 10 5/8 8 4
10 273.1 10.750 5 8 1/2 8 1/2 12 3/4 10 5
12 323.9 12.750 6 10 10 15 10 6

Alloy Steel Reducers Suppliers in UK

Nominal
Pipe
Size
Outside
Diameter
Reducers
Reduced from
(inches)
(mm) (inches) Reduced to
(inches)
Concentric & Eccentric Length
(inches)
1/2 21.3 0.840 1/4 1 1/2
3/8 1 1/2
3/4 26.7 1.050 3/8 2
1/2 2
1 33.4 1.315 3/8 2
1/2 2
3/4 2
1 1/4 42.2 1.660 1/2 2
3/4 2
1 2
1 1/2 48.3 1.900 1/2 2 1/2
3/4 2 1/2
1 2 1/2
1 1/4 2 1/2
2 60.3 2.375 3/4 3
1 3
1 1/4 3
1 1/2 3
2 1/2 73.0 2.875 1 3 1/2
1 1/4 3 1/2
1 1/2 3 1/2
2 3 1/2
3 88.9 3.500 1 3 1/2
1 1/2 3 1/2
2 3 1/2
2 1/2 3 1/2
3 1/2 101.6 4.000 1 1/4 4
1 1/2 4
2 4
2 1/2 4
3 4
4 114.3 4.500 1 1/2 4
2 4
2 1/2 4
3 4
3 1/2 4
5 141.3 5.563 2 5
2 1/2 5
3 5
3 1/2 5
4 5
6 168.3 6.625 2 1/2 5 1/2
3 5 1/2
3 1/2 5 1/2
4 5 1/2
5 5 1/2
8 219.1 8.625 3 6
3 1/2 6
4 6
5 6
6 6
10 273.1 10.750 4 7
5 7
6 7
8 7
12 323.9 12.750 5 8
6 8
8 8
10 8

Dimensions Butt-Welding Fittings – Butt-Welding Fittings – B16.9 – dimensions

Dimensions of Alloy Steel butt-welding fittings:

Alloy Steel Long Radius Elbows Suppliers in UK

Nominal Pipe Size
(inches)
Outside Pipe Diameter
(inches)
Distance Center to End 
(inches)
90o Elbows 45o Elbows
1 1.315 1 1/2 7/8
1 1/4 1.660 1 7/8 1
1 1/2 1.900 2 1/4 1 1/8
2 2.375 3 1 3/8
2 1/2 2.875 3 3/4 1 3/4
3 3.5 4 1/2 2
3 1/2 4.0 5 1/4 2 1/4
4 4.5 6 2 1/2
5 5.563 7 1/2 3 1/8
6 6.625 9 3 3/4
8 8.625 12 5
10 10.750 15 6 1/4
  • 1 inch = 25.4 mm

Alloy Steel 180° Returns Suppliers in UK

Nominal Pipe Size
(inches)
Outside Pipe Diameter
(inches)
Distance
(inches)
Center to Center Back to Face
1 1.315 3 2 3/16
1 1/4 1.660 3 3/4 2 3/4
1 1/2 1.900 4 1/2 3 1/4
2 2.375 6 4 3/16
2 1/2 2.875 7 1/2 5 3/16
3 3.5 9 6 1/4
3 1/2 4.0 10 1/2 7 1/4
4 4.5 12 8 1/4
5 5.563 15 10 5/16
6 6.625 18 12 5/16
8 8.625 24 16 5/16
10 10.750 30 20 3/8

Alloy Steel Straight Tees

Nominal Pipe Size
(inches)
Outside Pipe Diameter
(inches)
Distance Center to End
(inches)
Run Outlet
1 1.315 1 1/2 1 1/2
1 1/4 1.660 1 7/8 1 7/8
1 1/2 1.900 2 1/4 2 1/4
2 2.375 2 1/2 2 1/2
2 1/2 2.875 3 3
3 3.5 3 3/8 3 3/8
3 1/2 4.0 3 3/4 3 3/4
4 4.5 4 1/8 4 1/8
5 5.563 4 7/8 4 7/8
6 6.625 5 5/8 5 5/8
8 8.625 7 7
10 10.750 8 1/2 8 1/2

Chemical Composition of ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Buttweld Fittings

Chemical Composition Content %
Grade C Mn Si S P Cr Mo
A234WP5 ≤0.15 ≤0.6 ≤0.5 ≤0.04 ≤0.03 4-6 0.44-0.65
A234WP11 0.05-0.2 0.3-0.8 0.5-1 ≤0.030 ≤0.030 1-1.5 0.44-0.65
A234WP22 0.05-0.15 0.3-0.6 ≤0.5 ≤0.04 ≤0.04 2-2.5 0.87-1.13
A234WP91 0.08-0.12 0.3-0.6 0.2-0.5 ≤0.02 ≤0.015 8-9.5 0.85-1.05

Mechanical Properties of ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Buttweld Fittings

Alloy Steel Fittings Mechanical Properties
Grade Tensile Strength (Mpa) Yield Strength (Mpa) Elongation %
A234WPB 415-585 ≥240 ≥30
A234WP5 415-585 ≥205 ≥20
A234WP11 415-585 ≥205 ≥20
A234WP22 415-585 ≥205 ≥20
A234WP91 ≥590 ≥415 ≥20

ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Buttweld Fittings Production Range

Type Seamless / Welded / Fabricated
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Range ½”NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS.
Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43. 

ASTM A234 WP5, WP9, WP11, WP12, WP22, WP91 Buttweld Fittings

We export these Alloy Steel Pipe Fittings globally such as Peru, United States, Philippines, Canada, United Kingdom, United Arab Emirates, Singapore, Malaysia, Saudi Arabia, Indonesia, Thailand, Pakistan, Qatar, Australia, South Korea, South Africa, Iran, Turkey, Italy, Germany, Oman, Taiwan, Nigeria, Vietnam, Egypt, Mexico, Spain, Bahrain, Kuwait, Hong Kong, Netherlands, Bangladesh, Israel, Poland, Brazil, Norway, Sri Lanka, New Zealand, France, Finland, Romania, Denmark, Japan, Belgium, Russia, Kenya, Ireland, Greece, Portugal, Hungary, Serbia, Croatia, Bulgaria, Venezuela, Lithuania, Myanmar (Burma), Colombia, Azerbaijan, Iraq, Brunei, Laos, Cambodia, China, Czech Republic, Algeria, Chile and Croatia.

MD Exports LLP & Forging


9th Floor, Platina, G Block, Plot C 59, Bandra Kurla Complex, Mumbai MH 400051, India
Tel: +91-22-66581601 |Email: [email protected]

Other Industrial Products we supply in UK

© Copyright 2018 | Website & SEO by MD Steel India