ASTM A182 F91 Flange,A182 F91 Weld neck Flange,slip on Flange,A182 F91 Blind Flange ASME B16.5
We are a professional manufacturer of steel forged CHROME MOLY ALLOY STEEL A182 F91 flange in China, A182 F91 Blind flange,A182 F91 weld neck flange,ASME B16.5 A182 F91 Slip on Flange
ASTM A182 F91 is a forging material specification for F91 grade alloy steel and is used for manufacturing bare forgings or forged and machined products for applications involving high temperature service.
F91 (X10CrMoVNb9-1), IS AN ALLOY STEEL WITH CHROME AND AN ADDITION OF NB, WHICH HAS ELEVATED MECHANICAL CHARACTERISTICS AND IT IS VERY OFTEN USED IN THE CHEMICAL AND PETROCHEMICAL INDUSTRIES FOR THE FABRICATION OF FLANGES, VALVES, TUBES AND FOR EQUIPMENTS THAT REQUIRE AN EXCELLENT CREEP RESISTANCE AND TO EMBRITTLEMENT BECAUSE OF HYDROGEN UNDER PRESSURE AND AT AN ELEVATED TEMPERATURE (UP TO 600°C).
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.n. | AFNOR | UNE | B.S. | ASTM | |
| F91 | X10CrMoVNb9-1 | X10CrMoVNb9-1 | 1,4903 | – | – | – | ASTM A182 F91 ASME SA 182 |
A182 F91 Flanges are used to connect with A335 P91 Seamless pipes and A234 WP91 Pipe fittings in the pipeline connection.
China ASTM A182 F91 Flange specification.
Size: 1/4″ NB TO 60″NB.
Standards : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
BS : BS4504 , BS4504, BS1560, BS10
ASTM A182 / A182M – 19
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
The percentage (%) shown on the elements is the maximum, except where ranges are indicated.
† ASTM A182/A182M-13
*NACE MR01-75 specifies 237 maximum brinell hardness
ASTM A182 F91 is a forging material specification for F91 grade alloy steel and is used for manufacturing bare forgings or forged and machined products for applications involving high temperature service.
ASTM A182 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for F91 alloy steel forgings and forged products.
A182 F91 Flange Chemical Composition
Chemical Composition (%) of ASTM A182 F91:
CHEMICAL ANALYSIS
| C | Mn | Si | P max |
S max |
Cr | Ni max |
Mo | Zr max |
Al | N | Nb | V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0,08 ÷ 0,12 | 0,30 ÷ 0,60 | 0,20 ÷ 0,50 | 0,020 | 0,010 | 8,00 ÷ 9,50 | 0,40 | 0,85 ÷ 1,05 | 0,01 | 0,020 | 0,03 ÷ 0,07 | 0,06 ÷ 0,10 | 0,10 ÷ 0,25 |
A182 F91 Fange Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength, min, ksi [MPa] | 90 [620] |
| Yield Strength, min, ksi [MPa] | 60 [415] |
| Elongation in 2 in. [50mm] or 4D, min, % | 20 |
| Reduction or Area, min, % | 40 |
| Brinell Hardness Number, HBW | 190-248 |
