About 446 Stainless Steel
446 is a high chromium ferritic heat resistant alloy with excellent resistance to oxidation, sulfidation and other forms of hot corrosion. This grade is most commonly used between 1500 – 2100°F, although its elevated temperature strength is quite low. 446 is the only heat resistant alloy that will tolerate molten copper and brass. As with other high chromium ferritic stainless, 446 embrittles severely in the 700-1000°F temperature range (885°F embrittlement). 446 should not be used in this temperature range unless nearly complete loss of room temperature ductility may be tolerated. Sigma phase embrittlement occurs upon long time exposure in the 1000-1300°F range.
The grade 446 stainless steel is a ferritic, non-heat treatable stainless steel that provides good resistance to high temperature oxidation and corrosion. 446 is a ferritic stainless steel alloy melted as AOD. This alloy is non-hardenable but has excellent corrosion resistance at very higher temperatures and possesses good mechanical properties. This grade has poor ductility due to the high chromium content (roughly 25wt%). Because of the excellent oxidation resistance at high temperatures this grade is widely used as furnace parts and boiler baffles.
Stainless Steel 446 Lap Joint Flanges Chemical Composition
|SS 446||0.2 max||1.5 max||0.75 max||0.04 max||0.030 max||23 – 30||–||0.50 max||0.10 – 0.25||Balance|
Stainless Steel 446 Lap Joint Flanges Mechanical Properties
|Density||Melting Point||Tensile Strength||Yield Strength (0.2%Offset)||Elongation|
|7.5 g/cm3||1510 °C (2750 °F)||Psi – 75,000, MPa – 485||Psi – 40,000, MPa – 275||20%|
Inspection & Testing of Stainless Steel 446 Lap Joint Flanges
- Mechanical Testing Such as Tensile of Area, Hardness Test, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test.
Metline is a large producer of various type of stainless steel 446 flanges such as Weld-neck, Slip-on, Socket-weld, Lap-joint, Blind and Threaded Types. We produce and forge stainless steel 446 lap joint flanges to specifications of ASME B16.5, ASME B16.47, ASME B16.48, BS EN 1092, BS 4504, API-605, API-590, MSSSP44, DIN 2632 to 2638, DIN 2576, 2642, 2527, 2566. At Metline, stainless steel 446 lap joint flanges cover a full range of pressure ratings of these specifications (150 – 2500 psi for ASME & PN6-PN400 for DIN/EN flanges). We also specialize in producing non-standard stainless steel 446 lap joint flanges upto a diameter of 4500 mm.
Metline Industries is one of the prominent supplier, manufacturer and exporter of stainless steel 446 lap joint flanges which have only moderate resistance to carbon absorption and are not suggested for its usage in highly carburizing atmospheres. Our manufacturing process for stainless steel flanges includes an adequate heat treatment and the examination of chemical and mechanical properties. We have CNC machines as well as conventional lathe machines for machining and processing various types of stainless steel flanges.
Stainless Steel Slip On Flanges : SS Raised Face Slip On Flanges, SS Slip On Plate Flanges, Stainless Steel Slip On Flanges, ASME SA182 Slip On Flanges
Stainless Steel Weld Neck Flanges : SS Raised Face Weld Neck Flanges, SS Weld Neck Flanges, Stainless Steel Weld Neck Flange, ASTM A182 Stainless Steel WNRF Flange
Stainless Steel Blind Flanges : SS Raised Face Blind Flanges, SS Blind Flanges, Stainless Steel Blind Flange, ASTM A182 304 Stainless Steel BLRF Flanges
Stainless Steel Orifice Flanges : SS Orifice Flanges, Stainless Steel Orifice Flanges, A182 304 Stainless Steel Orifice Flanges
Stainless Steel Socket Weld Flanges : SS Socket Weld Flanges, Stainless Steel Socket Weld Flanges, ASME B16.5 Stainless Steel Socket Weld Flanges
Stainless Steel Threaded Flanges : SS Threaded Flanges, Stainless Steel Threaded Flanges, ASTM A182 Stainless Steel Threaded Flanges
Stainless Steel Long Weld Neck Flanges : SS Long Weld Neck Flanges, Stainless Steel Long Weld Neck Flanges, ASTM A182 304 Stainless Steel Long Weld Neck Flanges
Stainless Steel RTJ Flanges : SS Ring Type Joint Flanges, Stainless Steel RTJ Flanges, BS4504 Stainless Steel 304 RTJ Flanges
Stainless Steel Reducing Flanges : SS Reducing Flanges, Stainless Steel Reducing Flange, ASTM A182 Stainless Steel 304 Reducing Flanges
Stainless Steel Forged Flanges : SS Forged Flanges, Stainless Steel Forged Flange, ASTM A182 Stainless Steel 304 Forged Flanges
A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flange joints are made by bolting together two flanges with a gasket between them to provide a seal. Flanges are commonly used to connect valves into pipework making it easier for removal and maintenance. There are many common flange standards and flanges within the same standard can either be flat (commonly cast iron, ductile iron) or raised face (commonly cast steel and stainless steel).
Production Supply & Manufacturing Range for Stainless Steel 446 Lap Joint Flanges
|Standard:||ASTM A182, ASTM A240|
|Certificate:||EN 10204 3.1|
|Size||1/2″ to 60″, DN 15 to DN 1500|
|Delivery||Within 7 Days, For Production QTY’s within 30-40 Days|
|Surface Treatment:||Anti-Rust Oil, Painting ( Black, Yellow), Galvanizing, Power Coating|
|Testing Material :||Mechanical Testing Such as Tensile of Area, Hardness Test, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test|
|Package||Plywood Pallet, Wooden Pallet, Wooden Case etc.|
|Usage:||Used for the connection of all kinds of piping systems to convey the water, steam, air, gas and oil|
|Pressure||ANSI : Class 150, 300, 600, 900, 1500, 2500 lbs|
|DIN : PN6, PN10, PN16, PN25, PN40|
|GOST : PN6, PN10, PN16, PN25, PN40, PN63, PN100|
|EN1092-1 : PN6, PN10, PN16, PN25, PN40, PN63, PN100|
|JIS : 5K, 10K, 16K, 20K, 30K, 40K|
|BS4506 : PN6, PN10, PN16, PN25, PN40|