Compared to conventionally used carbon steels, the ASTM A182 F91 Flange is more expensive. Yet, the cost factor could be justified with regards to its mechanical properties which are much higher than carbon steel. Another important characteristic of the Alloy Steel F91 Forged Elbow is that these fittings have much better corrosion resistance properties as well. The alloy of a conventional carbon steel fitting is an alloy of just carbon and iron. On the other hand, the alloy used in the manufacture of ASME B16.5 A182 F91 Cl2 RTJ Flanges must conform to the ASTM A182 specification with regards to the alloyants used in the metal. Hence, the chemistry of alloy steel and stainless steels may contain a combination of the following elements - carbon, chromium, columbium, manganese, phosphorus, silicon, nickel, molybdenum and titanium.
Various grades of stainless steel and alloy steel components produced under specification ASTM A182 exhibit good performance when exposed to elevated temperature settings.
Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
ASTM A182 F91 Flange | 415 | 585 | 20 |
Material Group | Common Name | Type | UNS | Forging Spec. | Casting Spec. Equivalent | DIN |
---|---|---|---|---|---|---|
9Cr-1Mo-V | ASTM A182-F91 | A217-C12A | X 10 CrMoVNb 9 1 | 1.4903 | High pressure steam |
Depending on the alloy used to produce the A182 F91 Alloy Steel Slip On Flanges, the manufacturer may use the relevant elements to make the alloy. The addition of different alloyants results in different results. The addition of nickel to the alloy of ASTM A182 F91 Forged Fitting increases the ability of the alloy to withstand elevated temperatures. On the other hand, the presence of chromium in the alloy of SA 182 Gr F91 Blind Flange in a percentage of more than 11% of its total weight results in the formation of a protective self-repairing passivated oxide layer, thus effectively becoming resistant to oxidation corrosion.
Specification : | ASTM A182 F91 Flange |
Dimensions Class: | 2000# Fittings, 3000# Fittings, 6000# Fittings, 9000# Fittings |
Forged Type : | BSPT Fittings, BSPP Fittings, NPT (Threaded) Fittings. |
Production Process: | Machined, Forged, Heat Treated |
Flange Machining Equipment: | Sand-blasting machine, Bending machine, Electric bevelling machine, Pushing Machine, Press machine etc |
Pressure: | Check Pressure Rating Of Socket, Threaded: 3000 LBS, 6000 LBS, 9000 LBS |
Coating Flange Faces : | Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized, Oil Black Paint, Yellow Transparent |
Connect Type Type: | LMF Flange, SMF Flange, LJF Flange, RF Flange, FF Flange, RTJ Flange |
Design For Size: | ASA Flange, ANSI Flange, BS Flange, PN Flange, ASME Flange, JIS Flange, EN Flange, DIN Flange |
Standards: | MSS SP44 Flange, ASME B16.38 Flange, EN-1092 Flange, ASME B16.5 Flange, BS10 Flange, DIN Flange, PN Flange, JIS Flange, ISO Flange, GOST Flange, UNI Flange, AWWA Flange, ASME B16.47 (Series A, Series B) Flange |
Size Chart : | 1/2″ (15 NB) To 48″ (1200NB) |
Common Types of Flange : | Flanges 150 LB WNRF Class 300 RTJ 600# BLRF Class 900 SORF |
Application: | Nuclear Power Plant Water Pipeline Industry Oil And Gas Industry Chemical Industry Fabrication Industry Natural Gas Industry |
Element |
Weight % |
C | 0.08-0.12 |
Mn | 0.30-0.60 |
P | 0.020 Max |
S | 0.010 Max |
Si | 0.20-0.50 |
Ni | 0.40 Max |
Cr | 8.0-9.5 |
Mo | 0.85-1.05 |
V | 0.18-0.25 |
Cu | – |
Other | Cb, 0.06-0.10; N, 0.03-0.07; Al, 0.04 max. |
Alloy Steel SA182 F91 Forged 45 Degree Elbow
Steel ASTM A182 Gr F91 SW Full Coupling
Alloy Steel F91 Forged 90 Degree Elbow
Alloy Steel A182 F91 Socket Weld Cap
Alloy Steel F91 Reducing Flange
Alloy A182 F91 Weld Neck Flange
Alloy Steel A182 Gr F91 Blind Flange
ASTM A182 Grade F91 Flat Face Flange
Steel SA 182 Gr F91 Steel RTJ Flange
Alloy Steel A182 Grade F91 Raised Face Flange
AS A182 F91 Socket Weld Flange
A182 F91 Alloy Steel Slip On Flange
Dimension Standards | Size Range | Ratings |
---|---|---|
ASTM A182 F91 Socket Weld Flanges | 1/2" to 24" | 150# to 2500# |
Alloy Steel A182 F91 Lapped joint Flanges | 1" TO 24" | 300# TO 2500# |
SA182 Gr F91 Alloy steel flange | 26" TO 48" | 150# TO 600# |
Chromoly F91 Alloy steel lap joint flange | 12" TO 60" | 150# to 900# |
Low Alloy Steel ASTM A182 F91 WNRF Flanges | 26" TO 60" | -- |
SA182 F91 Alloy Steel RTJ Flange | 2 1/6" TO 30" | 2000 PSI TO 20000 PSI |
A182 Gr F91 Flat Flange | 1/2" TO 24" | 150# TO 2500# |
Alloy Steel F91 Slip On Flanges | DN10 TO DN3600 | PN6 TO PN160 |
Check ASTM A182 F91 Flange (UNS K90901)
ANSI/ASME B16.34 | ANSI PRESSURE RATING | ||||||
Temperature °F | 150# | 300# | 400# | 600# | 900# | 1500# | 2500# |
-20 to 100 | 265 | 695 | 925 | 1390 | 2085 | 3470 | 5785 |
200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5660 |
300 | 230 | 655 | 870 | 1305 | 1955 | 3260 | 5435 |
400 | 200 | 640 | 855 | 1280 | 1920 | 3200 | 5330 |
500 | 170 | 620 | 830 | 1245 | 1865 | 3105 | 5180 |
600 | 140 | 605 | 805 | 1210 | 1815 | 3025 | 5040 |
650 | 125 | 590 | 785 | 1175 | 1765 | 2940 | 4905 |
700 | 110 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
750 | 95 | 530 | 710 | 1065 | 1595 | 2660 | 4430 |
800 | 80 | 510 | 675 | 1015 | 1525 | 2540 | 4230 |
850 | 65 | 485 | 650 | 975 | 1460 | 2435 | 4060 |
900 | 50 | 450 | 600 | 900 | 1350 | 2245 | 3745 |
950 | 35 | 280 | 375 | 560 | 845 | 1405 | 2345 |
1000 | 20 | 165 | 220 | 330 | 495 | 825 | 1370 |