Stainless Steel Flanges

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Our company has gained immense accolades in the field of offering Stainless Steel Flanges to the clients.
We carry a large inventory of 304 and 316 stainless steel flanges in many types and sizes.
Blind Plate Flanges
Stainless Steel Blind Plate Flanges
We carry a full line of stainless steel blind plate flanges, which are manufactured without a bore and are applied to block the end of a pipe system or valve.
  • Types: Raised Face Blind
  • Sizes: 1/2" - 36" +
  • Bores: S/5s - XXH
  • Pressures: 150 - 300 - 600
Stainless Steel Slip on Plate Flanges
Stainless Steel Lap Joint Flanges
Slip-On Pipe Flanges. As made obvious by their name, these pipe flanges slip over the pipe.
Sunny Steel offers a large inventory of stainless steel flanges.
We carry a full line of stainless steel slip on flanges, used to block the end of a pipe system or valve. Our flange experts can help identify which flange is right for your application.
Stainless Steel Raised Face Threaded Flanges
Stainless Steel Raised Face Threaded Flanges
Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe.
Included in our inventory is a full line of stainless steel raised face threaded flanges, used to block the end of a pipe system or valve with the largest advantage of being able to add and remove without welding.
Stainless Steel Raised Face Threaded Flanges
Stainless Steel Raised Face Threaded Flanges
Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe.
Included in our inventory is a full line of stainless steel raised face threaded flanges, used to block the end of a pipe system or valve with the largest advantage of being able to add and remove without welding.
Stainless Steel Raised Face Weld Neck Flanges
Stainless Steel Raised Face Weld Neck Flanges
The Welding neck flanges is normally referred to as the high hub flange.
We carry a full line of stainless steel raised face weld neck flanges, used to block the end of a pipe system or valve. Our flange experts can help identify which flange is right for your application.
Stainless Steel Raised Face Socket Weld Flanges
Stainless Steel Lap Joint Flanges
Socket-Weld Flanges has a female socket in which pipe is fitted. Fillet welding is done from outside on the pipe.
Our flange experts can help identify which flange is right for your application.
Stainless Steel Raised Face Blind Flanges
Stainless Steel Raised Face Blind Flanges
The raised face concentrates more pressure on a smaller area, which provides increased containment capability. Stainless Steel Raised Face Blind Flanges Stainless Steel Raised Face Blind Flanges
  • Types: Raised Face Blind
  • Sizes: 1/2" - 36" +
  • Bores: S/5s - XXH
  • Pressures: 150 - 300 - 600
Stainless Steel Lap Joint Flanges
Stainless Steel Lap Joint Flanges
Lap Joint Flanges (LJ Flanges) are used on piping fitted with lapped pipe or with lap joint stub ends the combined initial cost of the two items being approximately one-third higher than that of comparable welding neck flanges.
  • Types: Raised Face Blind
  • Sizes: 1/2" - 36" +
  • Bores: S/5s - XXH
  • Pressures: 150 - 300 - 600
Grades of stainless:
We shall be pleased to develop Non-Standard
Forged stainless steel flange dimensions conform to ASME B16.5
NPT Threads conform to ASME B1.20.1
Up to 12" Listed - Contact us for pricing on larger sizes 304/304L & 316/316L Stainless Steel Listed
Stainless Steel Flanges Features accord to standard:
RF A20 B3 / 4
in the options from material 1.4404 (316L)

Measurement height


Measurement inside radius


Measurement outside radius


Measurement outside radius


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Stainless Steel Flanges Materials
  • Stainless Steel Flangess S.S. Stainless Steel Flanges Stainless Steel Flanges Stainless Steel Components Stainless Steel Parts in 304/L/H, 316/L/H, 317L, 321/H, 347/H, Alloy 20
  • Any special Stainless steel Parts Casting Material Composition as per customers requirement
Stainless Steel Flanges are designed with care using current techniques under the visionary guidance of accomplished professionals at manufacturing unit. Offered range is stringently tested on various parameters of quality for ensuring flawlessness and defect free. These products are widely used in various industries and widely appreciated by clients for owning unmatchable characteristics. Offered range supplied in quality assured packaging material.
Steel No. Type Chemical composition
C Si S P Mn Cr Ni Mo Other ób ós δ5 HB
F11 CL1 0.05-0.15 0.5-1 0.03 0.03 0.3-0.6 1-1.5 0.44-0.65 415 205 20 121-174 ψ%:45
F11 CL2 0.1-0.2 0.5-1 0.04 0.04 0.3-0.8 1-1.5 0.44-0.65 485 275 20 143-207 ψ%:30
F11 CL3 0.1-0.2 0.5-1 0.04 0.04 0.3-0.8 1-1.5 0.44-0.65 515 310 20 156-207 ψ%:30
F12 CL1 0.05-0.15 0.5 0.045 0.045 0.3-0.6 0.8-1.25 0.44-0.65 415 205 20 121-174 ψ%:45
F12 CL2 0.1-0.2 0.1-0.6 0.04 0.04 0.3-0.8 0.8-1.25 0.44-0.65 485 275 20 143-207 ψ%:30
F304 0.08 1 0.03 0.045 2 18-20 8-11 N:0.1 515 205 30 ψ%:50
F304H 0.04-0.1 1 0.03 0.045 2 18-20 8-11 515 205 30 ψ%:50
F304L 0.035 1 0.03 0.045 2 18-20 8-13 N:0.1 485 170 30 ψ%:50
F316L 0.035 1 0.03 0.045 2 16-18 10-15 2-3 N:0.1 485 170 30 ψ%:50
F317 0.08 1 0.03 0.045 2 18-20 11-15 3-4 515 205 30 ψ%:50
F321 0.08 1 0.03 0.045 2 17-19 9-12 Ti:5C%-0.7 515 205 30 ψ%:50
F347 0.08 1 0.03 0.045 2 17-20 9-13 Ti:10C%-1.1 515 205 30 ψ%:50
Stainless Steel Flanges Finished
Natural, Nickel Plated, Electro Polished Plated or any coating as per customer specification.
Any kind of special die casting sand gravity die lost wax shell moulding castings and cast parts casting produced to user specifications. We can be more competitive than Chinese castings and cast parts made in China Taiwan Asia Korea as traditional Indian expertise in Brass castings and Brass casting is superior and Indian Stainless Steel foundry / foundries are more competitive than other S.S. Stainless Steel foundries.

Custom Stainless Steel Flanges
Stainless steel flanges are corrosion resistant and have a wide variety of uses. We carry a variety of threaded flanges, weld neck flanges and slip- on flanges and, of course, we can can custom build steel flanges to your specifications.

Stainless Steel Flange Types
Stainless Steel flanges are corrosion resistant and have a wide variety of uses. We carry variety of threaded flanges, weld neck flanges and slip on flanges and of course we can can custom build stainless steel flanges to your specifications.

Hot products

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ASTM A335 Chrome Moly Pipe

Chrome Moly Pipe has become a standard in the power generation industry and the petrochemical industry, not only because of its tensile strength, corrosion resistance and high-temperature strength, but also because of its cost-effectiveness. Grades P-11, P-22 – P-91 & P-92 are prevalent grades for the power industry, while P-5 & P-9 are the grades utilized in major refinery processing. ASTM A335 P9 alloy steel pipe ASTM A335 P11 alloy steel pipe ASTM A335 P22 alloy steel pipe ASTM A335 P91 alloy steel pipe ASTM A335 P92 alloy pipes ASTM A335 P5 alloy steel pipe Sunny Steel Supply stocks a full range of the following A335 pipe grades: Main grades:  ASTM A335 P5, P9, P11, P-22, and P91 Size range: NPS 1/4'' to NPS 24'' Wall Thickness - Schedules 40 through 160, STD, XS, XXS. Unscheduled heavy wall pipe thicknesses available up
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Steel pipe world standards

Pipe manufacturing refers to how the individual pieces of pipe are made in a pipe mill; it does not refer to how the pieces are connected in the field to form a continuous pipeline. Each piece of pipe produced by a pipe mill is called a joint or a length (regardless of its measured length). In some cases, pipe is shipped to the pipeline construction site as “double joints”, where two pieces of pipe are pre-welded together to save time. Most of the pipe used for oil and gas pipelines is seamless or longitudinally welded, although spirally welded pipe is common for larger diameters. 1. Structural Steel Pipe: ASTM A53: GR.A, GR.B ASTM A106: GR.A, Gr.B, Gr.C GB/T 8162: 10#, 20#, 35#,45#, Q345A, Q345B, A345C, Q345D, Q345E, 20Cr, 40Cr, 20Mn2, 45Mn2, 40CrB, 27SiMn, 15CrMo, 20CrMo, 35CrMo, 42CrMo ASTM A519: 1020, 1035, 1045, 4130, 4140 DIN1629: St37.0, St44.0, St55, St52.0 DIN17175: St35.8, 17Mn4, 13CrMo44 EN10297: E355, C45, 34CrMo4 JIS G3441: SCM 420TK, SCM440TK JIS G3445: STKM13A, STKM1
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ASTM A333 Grade 6 Seamless Pipe

ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. Spec. Grade O.D W.T Length pcs Unit QTY ASTM A333 GR.6 88.90 4.00 6000-12000 15 T 1.3350 ASTM A333 GR.6 114.30 6.00 6000-12000 12 T 1.6980 ASTM A333 GR.6 114.00 7.00 6000-12000 3 T 0.5050 ASTM A333 GR.6 114.30 8.00 6000-12000 5 T 1.1050 ASTM A333 GR.6 114.30 12.00 6000-12000 2 T 0.6500 ASTM A333 GR.6 168.30 7.11 6000-12000 8 T 2.3380 ASTM A333 GR.6 168.30 7.11 12000 3 T 1.0320 ASTM A333 GR.6 168.30 7.11 6000-12000 4 T 1.2960 ASTM A333 GR.6 219.10 12.70     T 3.1820 ASTM A333 GR.6 323.80 9.53     T 1.9030 ASTM A333 GR.6 323.80 10.31     T 0.4560 ASTM A333 GR.3 48.30 5.08 6000-12000 22 T 1.3480 ASTM A333 GR.3 60.30 3.91 10300 18 T 1.0420 ASTM A333 GR.3 60.30 5.54 11800 17 T 1.5060 ASTM A333 GR.3 60.30 5.54 10500 4 T 0.3180 ASTM A333 GR.3 88.90 5.49 8600 8 T 0.7920 ASTM A333 GR.3 88.90 5.49 6000-12000 8 T 0.8360 ASTM A333 GR.3 114.30 6.02 6000-120
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ASTM A106 Seamless carbon steel tube for high temperature service

ASTM A106 Seamless carbon steel tube for high temperature service Description: standards: ASTM A106 (ASME SA106) products mainly used: apply to bending, curling and similar forming process. the main products of steel / steel grade: Gr.A; Gr.B; Gr.C. Specifications: diameter: 10.3 to 114.3 mm thickness: 0.8 to 12 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe. Chemical composition and mechanical properties JIS Number and Corrensponding Foreign Standards ASTM A106 Gr.B Pipes ASTM A106 / A106M - 11 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service Tubes for Fluid Our fluid seamless steel tubes are widely used for fluid transport, oil and natural gas long distance transmission as well as fluids. ASTM A106 (ASME SA106) Scope: This specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 incl
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Orifice Flanges

Orifice flange for run installation should be so constructed, machined and attached to the that the inner surface of the passage extends through the orifice flange so that there is no recess at the orifice plate. Orifice flanges are used instead of the standard pipe flanges when orifice plate or flow nozzle is used. The basic purpose for this is to measuring the flow rate of either gases or liquids in the respective pipeline. These flanges are used in various industrial applications and are available in various sizes and materials. Orifice Flange manufacturer Sunny Steel supplies Orifice Flanges, Plate Flanges, Datasheets and dimensional information ANSI 300 Flange - Orifice, Weld Neck, ANSI Class 300, B16.36 (in) ANSI 400 Flange - Orifice, Weld Neck, ANSI Class 400, B16.36 (in) ANSI 600 Flange - Orifice, Weld Neck, ANSI Class 600, B16.36 (in) ANSI 900 Flange - Orifice, Weld Neck, ANSI Class 900, B16.36 (in) ANSI 1500 Flange - Orifice, Weld
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ASTM A213 T22 alloy tube

ASTM A213 T22 is the part of ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes. We are manufacturer of ASTM A213 T22 alloy tube and supply high quality ASTM A213 T22 alloy tube in both large and small quantities worldwide and offer you the best prices in the market. ASTM A213 T22 Standard covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. + SA 213-T22 u-bended tube Grades containing the letter H in their designation have requirements different from those of similar grades not containing the letter H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. ASTM A213 T22 tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and
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Tubing, Casing and Line Pipes

Tubing and casing strings designed for the specific requirements for conveying gaseous media and combustible liquids or solids. ERW oil casing application and market analysis API Spec 5CT - Specification for Casing and Tubing API SPEC 5L - Standard Specification for Line Pipe API 5L Gr. B Standard specification Tensile test and hardness test on oil pipeline Properties &  Inspection Oil pipeline anti-rust varnish Pipeline project All wells drilled for the purpose of oil or gas production (or injecting materials into underground formations) must be cased with material with sufficient strength and functionality. API5L Steel pipe for pipeline transportation system Peotroleum and natureal gas industies - Steel pipe for pipeline transportation system. ERW steel pipe API 5L X60 steel pipe API 5L X70 steel pipe API Spec 5CT Casing pipe API Spec 5CT  – Specification 5CT/ISO 11960, Specification for Casing and Tubing, Eighth Edition, Petroleum and natu
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Seamless Steel Pipe and Tubes

Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids. We can makes and markets cold-drawn and hot rolled seamless steel pipes and cold-drawn special-section seamless pipes which are widely applied in the industries of petrochemical, boiler, automobile, mechanical, construction, chain, electric of the company is 80000t. Our factories through ISO9001:2000 certificate, has aggressive leadships and outstanding professionals. Steel Pipe & Tubing - All you need to know Steel Pipe & Tubing seem similar at first blush and in fact they share many characteristics but they also have some important differences. Definitions: Steel Tubing  is a hollow steel shape intended for structural purposes and made from carbon, stainless, or galvanized steel further divided as: Mechanical Tubing  is use
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ASTM A335 P22 alloy steel pipe

ASTM A335 P22 alloy steel pipe with addition of chromium, molybdenum, and sometimes vanadium. Chromium, or chrome, improves high-temperature strength, increases oxidation resistance and raises the tensile, yield and hardness at room temperatures. Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices. Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test. Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested. A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as
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Difference between ERW, SSAW, LSAW

Steel pipe for pipe technology, can be divided into (SML), mainly as the Oilfield internal transportation pipeline and small-diameter high-pressure natural gas pipeline, used for a small number of long-distance gas pipeline, the vast majority of long-distance pipeline with Direct seam high frequency (ERW), spiral submerged arc (SSAW), LSAW three (LSAW).  ERW pipes The following table several steel pipes process characteristics and quality of performance comparison: High frequency straight seam welding ( ERW ) method is divided into two forms of induction welding and contact welding, hot-rolled wide volume as raw material, pre-curved, continuous molding, welding, heat treatment, sizing, straightening, cutting, etc. process, compared with the spiral weld short, high dimensional accuracy, uniform thickness, surface quality, pressure advantages, but the drawback is that only the production of small and medium-caliber thin-walled tube, weld easy to produce gray leaf spot, not fusion

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Bimetal Clad Pipe

Bimetal Clad Pipe
Bimetal Clad Pipe is cast with mold vanishing vacuum suction casting cladding process.

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