Senior Steel & Engineering Co


Stainless Steel Products
Empowered by our state-of-the-art infrastructural facilities, we have been able to successfully offer a wide range of quality tubular products such as stainless steel, carbon steel and others. The entire range is manufactured using qualitative raw material and undergoes thorough quality checks so that flawless range is delivered to the clients. Our range encompasses:


Mild Steel Pipes
Mild Steel Pipes
Item Code: Carban-Steel-Tubes

We manufacture a wide range of pipes that are developed using premium grade carbon steel and mild steel. These pipes are offered in various technical specifications and can also be customized as per clients’ requirements.

Technical Specifications:

  • Material: Carbon Steel & Mild Steel Pipes & Tubes
  • Specification: ASTM A 53, 106, API 5L, IS 1239, IS 3589
  • Grades: A, B, C, & LIGHT, MEDIUM, HEAVY
  • Material:  Alloy Steel Pipes & Tubes
  • Specification: ASTM A 335
  • Grades: P-1, P-2, P-5, P-9, P-11, P-12, P-15, P-21, P-22, P-91



Stainless Steel Pipes
Stainless Steel Pipes
Item Code: Stainless-Steel-Tubes

We manufacture a wide range of SS pipes and fittings that are extensively used in diverse industries. The entire assortment has gained huge appreciation in the market for their host of exclusive features such as corrosion resistance and durability.

Range :
  • 15 NB upto 1200 NB IN SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160
Form :
  • Seamless / ERW / Welded pipes in round and square shapes
Nickel Alloy
  • ASTM / ASME SB 163 UNS 2200 ( NICKEL 200 )
  • ASTM / ASME SB 163 UNS 2201 (NICKEL 201 )
  • ASTM / ASME SB 163 / 165 UNS 4400 (MONEL 400 )
  • ASTM / ASME SB 464 UNS 8020 ( ALLOY 20 / 20 CB 3 )
  • ASTM / ASME SB 704/705 UNS 8825 INCONEL (825)
  • ASTM / ASME SB 167 / 517 UNS 6600 (INCONEL 600 )
  • ASTM / ASME SB 167 UNS 6601 ( INCONEL 601 )
  • ASTM / ASME SB 704 /705 UNS 6625 (INCONEL 625)
  • ASTM / ASME SB 619/622/626 UNS 10276 ( HASTELLOY C 276 )
Copper Alloy
  • ASTM / ASME SB 111 UNS NO. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500.
  • ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30)
Stainless Steel
  • ASTM / ASME SA 312 GR. TP 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.
  • ASTM / ASME SA 358 CL 1 & CL 3 GR . 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316H, 321, 321H, 47 .
Duplex Steel
  • ASTM / ASME SA 790 UNS NO S 31803, S 32205, S 32550, S 32750, S 32760.
Carbon Steel
  • ASTM / ASME A 53 GR. A & B, ASTM A 106 GR. A, B & C. API 5L GR. B, API 5L X 42, X 46, X 52, X 60, X 65 & X 70.
  • ASTM / ASME A 691 GR A, B & C
Alloy Steel
  • ASTM / ASME A 335 GR P 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91
  • ASTM / ASME A 691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91



Stainless Steel Pipe Fittings
Stainless Steel Pipe Fittings

The Stainless steel pipes fittings we manufacture have gained tremendous appreciation in the market for their host of exclusive features. These are fabricated using premium grade stainless steel sourced from certified vendors. We offer these fittings in various specifications that can also be customized as per the requirements provided by the clients.

Range :

15 NB upto 100 NB in 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS, 150 LBS, 250 LBS.
Form :

Socket weld fittings : Elbow 90 deg, cross, tee, elbow 45 deg, coupling, half coupling & cap.

Nickel Alloy

ASTM / ASME SB 564 UNS 2200 ( NICKEL 200 ), UNS 4400 (MONEL 400 ), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 )
ASTM / ASME SB 160 UNS 2201 (NICKEL 201 )
ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 )
Copper Alloy
ASTM / ASME SB 61 UNS NO. C 92200 & ASTM / ASME SB 62 UNS NO. C 83600.
ASTM / ASME SB 151 UNS NO. 70600, 71500, C 70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30), ASTM / ASME SB 152 UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C 12200.

Stainless Steel 

ASTM / ASME SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347 H.
Duplex Steel
ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61.

Carbon Steel
ASTM / ASME A 105.
ASTM / ASME A 350 LF 2.
Alloy Steel
ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91.




Stainless Steel Flanges
Stainless Steel Flanges
Item Code: Weldneck-and-Lapjoint

The SS flanges we manufacture have gained tremendous appreciation in the market for their host of qualitative features. These flanges are available in various specifications and types.

Technical Specifications:
  • Types: Weld Neck, Socket Weld, Lap Joint, Slip-On, Threaded, Blind and Customer Designed Flanges
  • Size: ½” to 36”
  • Class of pressure: Class 150, 300, 600, 900, 1500
  • Standard facings: Raised face, Ring-type joint, Flat face, Male/female, Tongue/groove
  • Standards: ASME, ANSI, API, BS, DIN, JIS and other International Standards
Flange and Bolt Dimensions for Standard Flanges
 
NPS
(inches)
150 psi
300 psi
Dia. of
Flange
(inches)
No.
of
Bolts
Dia. of
Bolts
(inches)
Bolt
Circle
(inches)
Dia. of
Flange
(inches)
No.
of
Bolts
Dia. of
Bolts
(inches)
Bolt
Circle
(inches)
1/4
3-3/8
4
1/2
2-1/4
3-3/8
4
1/2
2-1/4
1/2
3-1/2
4
1/2
2-3/8
3-3/4
4
1/2
2-5/8
3/4
3-7/8
4
1/2
2-3/4
4-5/8
4
5/8
3-1/4
1
4-1/4
4
1/2
3-1/8
4-7/8
4
5/8
3-1/2
1-1/4
4-5/8
4
1/2
3-1/2
5-1/4
4
5/8
3-7/8
1-1/2
5




Stainless Steel Fasteners
Stainless Steel Fasteners
Item Code: Stainless-Steel-Nut-Bolt

We manufacture a wide range Stainless Steel Fasteners that are widely used in various industries.

Bolts :
Hex head bolts, hexagon head bolts, mushroom head square neck bolts , T- head bolts, wing bolts, eye bolts and lifting eye bolts.

Screws : Pan head slotted screws, cheese head slotted screws, countersunk head slotted screws, countersunk raised head slotted screws, pan phillips head screws, countersunk phillips raised head screws, slotted cheese trim head machine screws, socket head allen cap screws, allen countersunk socket head cap screws, socket head shoulder screws, socket head cap screw low head, hexagon socket set screw with flat point, hexagon socket set screws with cone point, hexagon socket set screw with dog point, hexagon socket set screws with cup point, imperial socket cap screws.

Nuts : Hexagon nuts, hexagon coupling nuts, hexagon thin nuts, square nuts, hexagon castle nuts, self locking nuts, hexagon domed cap nuts.

Washers :
Plain washers, plain big OD washers, plain small OD washers, spring lock washers, heavy duty spring washers, tooth washers, serrated star washers, tab washers with one tab, tab washers with two tab.
Nickel Alloy ASTM / ASME SB 160 UNS 2200 ( NICKEL 200 ) / UNS 2201 (NICKEL 201 )
  • ASTM / ASME SB 164 UNS 4400 (MONEL 400 )
  • ASTM / ASME SB 425 UNS 8825 (INCONEL 825)
  • ASTM / ASME SB 166 UNS 6600 (INCONEL 600 ) / UNS 6601 ( INCONEL 601 )
  • ASTM / ASME SB 446 UNS 6625 (INCONEL 625)
  • ASTM / ASME SB 574 UNS 10276 ( HASTELLOY C 276 )
  • ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 ).
Stainless Steel
  • ASTM / ASME A 193 B 8( 304 )
  • B 8C( SS 347 )
  • B 8M( SS 316 )
  • B 8 T( SS 321 ), A 2, A 4 // ASTM / ASME A 194 B 8 ( 304 ), B 8C ( SS 347 ), B 8M ( SS 316 ), B 8T ( SS 321 ).
Alloy Steel ASTM / ASME A 193 B 6, B 7/ B 7M, B 16// ASTM / ASME A 194 GR. 2, 2HM, 2H, GR 6, B 7, B 7M.



Stainless Steel Valves
Stainless Steel Valves

We offer exclusive range of precision engineered SS valves which are highly durable and provide long service to a long period in various industrial applications.

Some of industries in which our stainless steel valves are used include:

  • Food & Beverage
  • Dairy
  • Chemical
  • Cosmetic
  • Pharmaceutical
  • Vacuum
  • Biotechnology
  • Semiconductor
 
We ensure during the process of procurement that these SS valves conform to different standards such as 3A, SMS, BS, and ASME BPE which as a result help us to satisfy our customers on the issue of dependability. 

Furthermore, to fulfill large number of industrial demands in various industries, we also offer stainless steel tube fittings in different surface finishes that ranges from 32 Ra to 15 Ra. Other specifications of these tube fittings are as follows:

  • Material: 316L, chemical composition in accordance with ASME BPE product specification
  • Tolerances: Acc. to ASME BPE product specification
  • Weld ends: Weld ends of tubes and fittings are prepared for orbital welding
  • Surface finishing: We provide quality mechanical polish from 32 Ra in through to 15 Ra
 
Moreover, electropolishing and other requirements are available upon request.
 



Stainless Steel Sheets
Stainless Steel Sheets
Item Code: Stainless-Steel-Coils-and-Plate

We manufacture an exclusive range Stainless Steel Sheet, plates & coils of  that are designed using qualitative material sourced from trusted vendors. The entire gamut has gained huge appreciation in the market for their host of exclusive features as they are used in various industries. Available in different specifications, these can also be customized as per the specifications detailed by the clients.

Range :

  • 1 mm TO 200 mm thick in 1000 mm TO 3000 mm width x 2500 mm / 5000 mm / 10000 mm / Coil.

Nickel Alloy ASTM / ASME SB 162 UNS 2200 ( NICKEL 200 ) / UNS 2201 (NICKEL 201 )


  • ASTM / ASME SB 127UNS 4400 (MONEL 400 )
  • ASTM / ASME SB 424 UNS 8825 (INCONEL 825)
  • ASTM / ASME SB 168UNS 6600 (INCONEL 600 ) / UNS 6601 ( INCONEL 601 )
  • ASTM / ASME SB 443 UNS 6625 (INCONEL 625)
  • ASTM / ASME SB 574 UNS 10276 ( HASTELLOY C 276 )
  • ASTM / ASME SB 462 UNS 8020 ( ALLOY 20 / 20 CB 3 )

Stainless Steel


  • ASTM / ASME SA 240 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316H, 316L, 316 TI, 317, 317L, 321, 321H, 347, 347 H, 409, 410, 410S, 430.

Duplex Steel


  • ASTM / ASME SA 240 UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760.

Carbon Steel


  • ASTM / ASME A 516 / 517 GR. 60 / 70, IS 2062, IS 2002

Alloy Steel


  • ASTM / ASME A 387 GR F 5, F 9, F 11, F 12, F 22, F 91.



Stainless Steel Round Bars
Stainless Steel Round Bars
Item Code: Stainless-Steel-Flate-and-Angles

We manufacture a wide range SS steel round bars that are widely used in various industries. The entire assortment have gained tremendous accolades in the market for their host of exclusive features such as durability, corrosion resistance and reliable.

Range :
3.17 mm TO 350 mm in diameter.
Nickel Alloy ASTM / ASME SB 160 UNS 2200 ( NICKEL 200 ) / UNS 2201 (NICKEL 201 )

ASTM / ASME SB 164 UNS 4400 (MONEL 400 )
ASTM / ASME SB 425 UNS 8825 (INCONEL 825)
ASTM / ASME SB 166 UNS 6600 (INCONEL 600 ) / UNS 6601 ( INCONEL 601 )
ASTM / ASME SB 446UNS 6625 (INCONEL 625)
ASTM / ASME SB 574 UNS 10276 ( HASTELLOY C 276 )
ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 )

Stainless Steel
ASTM / ASME SA 276 TP 304, 304L, 309S, 309H, 310S, 316, 316L, 316 TI, 317, 321, 347, 410, 420, 430, 431, 440A, B & C, 446.
ASTM / ASME SA 479 TP 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316H, 316L, 316 TI, 317, 321, 321H, 347, 347H, 410, 430, 431 & 444.
Duplex Steel
ASTM / ASME SA 276 UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760.

Carbon Steel
ASTM / ASME A 105.
Alloy Steel
ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91.
ASTM / ASME A 729 GR B 11 & B 22.




Titanium Round Bars
Titanium Round Bars
Item Code: Gr-2-Gr-5

We trade in a wide range of premium grade Titanium that is sourced from trustworthy vendors based across the globe. This white metal has the best strength that weight ratio among the metals. These reactive metals are more powerful deoxidizer of steel than silicon or manganese, 40% lighter than steel and 60% heavier than aluminum. Titanium is a very useful structural metal that are appreciated for their host of exclusive features:

  • Corrosion resistant
  • Resistant to atmospheric and ocean conditions
  • Resistant to chemical

Titanium is difficult to fabricate for its susceptibility to oxygen, nitrogen, and hydrogen impurities which cause the titanium to become more brittle. These are used to make mill wrought form such as plate, tubing, sheet, wire, extrusions, and forgings. Titanium can also be cast that are done in a vacuum furnace because of titanium's reactive nature.

Application Areas:

  • Aircraft
  • Sporting equipment
  • Chemical processing
  • Desalination
  • Power generation equipment
  • Valve and pump parts
  • Marine hardware
  • Prosthetic devices

Grades:

Commercially Pure Alloys:
There are five grades of what is known as commercially pure or unalloyed titanium, ASTM Grades 1 through 4, and 7. Each grade has a different amount of impurity content, with Grade 1 being the most pure. Tensile strengths vary from 172 GPa for Grade 1 to 483  GPa for Grade 4.
 
Alpha Alloys:
Titanium alpha alloys are alloys that typically contain aluminum and tin, though they can also contain molybdenum, zirconium, nitrogen, vanadium, columbium, tantalum, and silicon. Alpha alloys do not generally respond to heat treatment, but they are weldable and are commonly used for cryogenic applications, airplane parts, and chemical processing equipment.
Alpha-Beta Alloys:
Alpha-beta alloys can be strengthened by heat treatment and aging, and therefore can undergo manufacturing while the material is still ductile, then undergo heat treatment to strengthen the material, which is a big advantage. The alloys are used in aircraft and aircraft turbine parts, chemical processing equipment, marine hardware, and prosthetic devices.
Beta Alloys:
The smallest group of titanium alloys, beta alloys have good hardenability, good cold formability when they are solution-treated, and high strength when they are aged. Beta alloys are slightly more dense than other titanium alloys, having densities ranging from 4840 to 5060 kg/m3. They are the least cree



Hastelloy Pipes
Hastelloy Pipes

We supply a wide assortment of premium hastelloys that are procured from certified vendors. These are nickel-molybdenum alloy with excellent resistance to hydrochloric and sulphuric acid in the AS-WELDED condition. These are appropriate for high temperature and have strength in inert atmospheres or vacuum. Hastelloys are offered in various types such as:
  • Hastelloy B-2
  • Hastelloy C-4
  • Hastelloy C-276
  • Hastelloy C-22

Applications: Suitable for many chemical process applications

For Hastelloy B-2

Chemical Composition (%):

  • Nickel : Balance
  • Chromium : 0.4-1
  • Iron : 1.5 -2
  • Molybdenum :4.5-5
  • Carbon max 0.01
  • Others Co: max 1, Si : max 0.08

Physical properties:

  • Density (g/cm3): 9.2
  • Specific Heat J/KgK: 377
  • Thermal conductivity W/m K:11.4
  • Electrical resistivity ¿¿cm:137
  • Thermal expansion 10-6 /K 20-3000C: 11.1
  • Modulus of elasticity KN/mm2: 217

Mechanical Properties:


Temperature (oC)
RP 0.2
 RP 1.0
Rm
A5
20
min. 350
min.380
min. 760
min. 40
100
min. 315
min. 355
-
-
200
min. 285
min. 325
-
-
300
min. 270
min. 310
-
-
400
min. 255
min. 295
-
-
450
-
-
-
-
  

For Hastelloys C-4

Applications:

  • Inorganic chemicals
  • Fertilizer
  • Pesticide production
  • Acetic acid production

Chemical Composition (%): 

  • Nickel:  Balance
  • Chromium: 14.5-17.5
  • Iron: max. 3.0
  • Molybdenum: 14-17. 
  • Carbon max 0.009
  • Others Co: max 2, Si : max 0.05, Ti : max. 0.7

Physical Properties:


  • Density (g/cm3): 8.6
  • Specific Heat J/KgK: 408
  • Thermal conductivity W/m K: 10.1
  • Electrical resistivity μ??? cm: 124
  • Thermal expansion 1



Copper Coils
Copper Coils
Item Code: Brass-Coils

WE MANUFACTURE COPPER PIPES & COPPER COILS IN VARIOUS GRADES SUCH AS: DHP, DLP, DPA & ETP GRADE.

  • Copper Pipes & Tubes sizes: 6 mm O.D. upto 100 mm O.D.
  • Copper Coils sizes:6 mm O.D. upto 22.22 mm O.D.
  • Copper Flats sizes: 6 mm width upto 200 mm width.
  • Copper Rods (square & round bar) sizes: 6 mm upto 100 mm.
  • Copper Finned Tubes sizes: 6 mm O.D. upto 20 mm O.D.


Other Copper Products : Copper Strip in Coil, Copper Bus Bar, Copper Tape, Copper Square Bar, Copper Hexagon Bar & Copper Fittings
Brass : 63 / 37 Brass, 70 / 30 Brass, Admirality Brass, Aluminium Brass & other compositions of Brass.

A Copper Nickel Alloy
: In the ratio of 90/10 that has very high erosion and corrosion resistance. It has very high weld ability, easy for installation and are used for Condensers, Ship building, Refineries etc.

70/30 Cupro Nickel Tubes : (Size range: 3 mm OD to 50mm OD with thickness of 0.5 mm to 20 mm wall) For the mechnical properties add EN 1057 after ASTM B 280 Tensile strength 220 MPa, Elongation - min 40 and Hardness - annealed.



Monel K-500
Monel K-500
Item Code: Monel-400

Monel 400/R-405 we supply has gained tremendous appreciation in the market for their host of qualitative features such as high strength, excellent corrosion resistance and toughness over a wide temperature range. These are highly resistant to corrosion by chlorinated solvents, glass-etching agents, sulphuric acidical and most alkalies. Also useful in oxidizing atmospheres to 1000F. 405 is similar to 400 with sulphur added to improve machinability.

Applications:

  • Valves
  • Pumps
  • Pump and propellor shafts
  • Marine fixtures
  • Electrical and Electronic components
  • Process equipment
  • Petroleum refining and production equipment
  • Heat Exchangers

Chemical Composition (%):

  • Nickel: min. 63
  • Copper: 28 – 34
  • Aluminum: max. 0.5
  • Manganese: max.1.25
  • Iron: 1 - 2.5
  • Titanium: max 0.2
  • Carbon: max. 0.15

Physical Properties:


  • Density (g/cm3): 8.8
  • Specific Heat J/KgK: 430
  • Thermal conductivity W/m K: 26
  • Electrical resistivity ¿¿ cm: 51.3
  • Thermal expansion 10-6 /K 20-3000C: 15.8
  • Modulus of elasticity KN/mm2: 182









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