ASTM A182 / A182M - 19a Forged Stainless Steel Pipe Fittings for High-Temperature Service
This Standard covers ratings, dimensions, tolerances, marking and material requirements for socket-welding and threaded forged fittings. These fittings are designated as Class 2000, 3000, and 6000 for threaded end fittings and Class 3000, 6000, and 9000 for socket-weld end fittings. B16.11 is to be used in conjunction with equipment described in other volumes of the ASME B16 series of standards as well as with other ASME standards, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes.
| ASTM A182 /ASME SA182 | Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service | ||||
| Low alloy Steels | F1 | F2 | F5， F5a | F5 | F91 |
| F92 | F911 | F11, | F12 | F36 | |
| F21, F3V, F3VCb | F22, 1/3/V | F23 | F24 | FR | |
| F122 | F10 | F9 | |||
| Martensitic and Ferritic Stainless steel |
F6a | F6b | F6NM | F XM-27Cb | F429 |
| F430 | |||||
| Austenitic Stainless steel | F304 | F304H | F304L | F304N | F304LN |
| F309H | F310 | F310H | F310MoLN | F316 | |
| F316H | F316L | F316N | F316LN | F316Ti | |
| F317 | S31727 | S32503 | F321 | F321H | |
| F347 | F347H | F347LN | F348 | F348H | |
| FXM-11 | FXM-19 | F20 | F44 | F45 | |
| F46 | F47 | F48 | F49 | F56 | |
| F58 | F62 | F63 | F64 | F904L | |
| Ferritic-Austenitic Stainless steel | F 50 | F 51 | F 52 | F 53 | F 54 |
| F 55 | F 56 | F 57 | F 58 | F 59 | |
| F60 | F61 | F65 | F65 | F67 | |
| Product Form | |||||
| Flanges(ASME B16.47,B16.48, B16.5,MSS SP44,BS10,BS3293, BS4504,ISO7005-1) |
WN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);Th(Threaded);SW(scket-welding);LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange;Reducing flange; API flange;Integral/Compact flange;Spectacle blind,Lind spade and spacer,Paddle blind,Paddle spacer ;Orifice plate;Pipe plate,Bleed ring,Overlap Flange. |
||||
| ASME B16.11 | Forged threaded fittings:90-deg elbow,45-deg elbow,tee,cross,coupling,half-coupling,cap,square head plug,hex head plug,round head plug,hex head bushing,flush bushing,street elbows | ||||
| ASME B16.11 | Fogred socket weld fittings:90-deg elbow,45-deg elbow,tee,cross,coupling,half-coupling,cap | ||||
| MSS SP83 | Steel Pipe Unions(socket welding and threaded end) | ||||
| MSS SP95 | swage nipples,bull plug(ends may be threaded,beveled,plain) | ||||
| MSS SP79 | socket welding reducer inserts | ||||
| MSS SP97 | weldolets,threadolets,sockolets,flangolets,elbolet,sweepolets,saddle,nipolets,brazolets,latrolets,insertolets | ||||
| Forgings | Forgings,Rings,Discs,Disks,Tubesheets,Shaft,Sleeves,Bars,Valves,etc. | ||||
Standard: ASME B16.11
Grade: F304, F304L, F304H, F309, F310S, F316, F316L, F316H, F317, F317L, F321, F321H, F904L, F347, F347H, F348, F348H
Class: 2000, 3000, 6000 for Threaded Forged Fittings
Class: 3000, 6000, 9000 for Socket-weld End Fittings
Size: NPS 1/8" - 4"
Threaded Fittings: 90° Elbow, Tee, Cross, 45° Elbow, Coupling, Half Coupling, Cap, Square Head Plug, Hex Head Plug, Round Head Plug, Hex Head Bushing, Union, Hex Nipple, Threadolet
Socket-weld End Fittings: 90° Elbow, Tee, Cross, 45° Elbow, Coupling, Half Coupling, Cap, Union, Reducer
astm a182 stainless steel pipe fittings, China, manufacturers, suppliers, factory, company, exporter, seller, brands, import, buy, best, high-quality
The standard applies to forged low alloy steel and stainless steel pipe parts for use in pressure systems. These include flanges, fittings, valves and similar parts that meet specified size or size standards. And it includes several grades of low carbon alloy steel and ferritic, martensitic, austenitic and ferritic-austenitic stainless steels. So it should be selected according to the design and use requirements.
When additional tests or inspections are required, supplementary requirements are provided for use. When the purchaser has specified them individually in the order, and it can be used.
Alloy grade: ASTM A182 F5, F9, F91, F92, F11, F12, F21, F22
Stainless steel grade: ASTM A182 F304, F304L, F316, F316L
ASTM F11, F22 is the most use alloy steel grade in ASTM A182.
ASTM A182 F316 is most used for stainless steel flange, includes weld neck flange, slip on flange, blind flange, socket weld flange and etc.
Either alloy steel or stainless steel flange dimensions available for the OD up to 48 inch, class pressure from 150# to 2500#.
This specification is expressed in inch-pounds and SI units.
Low alloy ferritic steels should be smelted in one of the following methods:
a. Open hearth furnaces
b. Electric furnaces
c. Basis -oxygen process (with the option of separate degassing and refining processes).
Stainless steel should be smelted in one of the following ways:
a. Electric furnace (with separate deoxidation and refining (optional))
b. Vacuum furnace
c. One of the above, followed by vacuum or electroslag self-consumption remelting.
The discard should be removed sufficiently, so as to ensure the elimination of harmful shrinkage and excessive segregation.
Chemical heat analysis shall be performed and consistent with the chemical composition requirements of Table 1.
Grades that add lead, selenium or other elements to make the material easier machined, it should not be used.
It is not permissible to add any element that exceeds the corresponding material grade listed in Table 2 for the raw materials produced in accordance with a certain standard.
Except for nitrogen in stainless steel, the ordered grade shall not contain unspecified elements to the extent that the content meets the requirements of another grade, which have the specified element with the minimum required content.
ASTM A182 F304L Forged Fittings Elbow for High Temperature Service is for forged and rolled alloy and stainless steel pipe flanges, fittings, valves and parts for high temperature service. Common grades of stainless steel F304/L and F316/L.
