ASTM A182 F91 Flange,A182 F91 Weld neck Flange,slip on Flange,A 182 F91 Blind Flange
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,ANSI B16.5 A182 F91 Slip on Flange
A182 F91 Flange are used to connect with A335 P91 Seamless pipes and A234 WP91 Pipe fittings in the pipeline connection.
A182 F91 is a specification for forged or rolled alloy-steel pipe flanges, forged fittings, and valves and parts intended for high-temperature service. F91 specifically refers to a grade of chromium-molybdenum alloy steel.
A182 F91 is a high-strength, high-temperature resistant pipe fitting made from 9% Chromium-1% Molybdenum alloy steel
China ASTM A182 F91 Flange specification.
Size: 1/4″ NB TO 60″NB.
Product：ASTM A182 Alloy Steel F91 Blind Flanges
ASTM A182 Alloy Steel F91 Threaded / Screwed Flanges
Alloy Steel ASTM A182 F91 Slip On Flanges ASTM A182
Alloy Steel F91 Weld Neck Flanges
Dimensions : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc.
Standards : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
A182 F91 Class 150 lbs Flanges, Class 300 Lbs A182 F91 Flanges, Class 600 Lbs ASTM A182 Alloy Steel F91 Flanges, ANSI B16.5 CrMo 900# Flanges, ASME B16.5 Alloy Steel F91 1500# Flanges, Class 2500 Lbs Chrome Moly A182 F91 Flange, ANSI B16.47 Series A or MSS SP-44 CrMo F91 Flanges, ANSI B16.47 series B or API-605 Alloy Steel A182 F91 Flange,
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
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
A182 F91 Flange Chemical Composition
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 Chemical Composition
Grade: F91
Chemical Requirements max,%
| Elements | A182 F91 |
| Carbon | 0.08-0.12 |
| Manganese | 0.30-0.60 |
| Phosphorus | 0.020 |
| Sulfur | 0.010 |
| Silicon | 0.20-0.50 |
| Nitrogen | 0.40 |
| Chromium | 8.0-9.5 |
| Molybdenum | 0.85–1.05 |
| Columbium | 0.06-0.10 |
| Others | V: 0.18-0.25 N: 0.03-0.07 Ni 0.40 Al: 0.02 Ti: 0.01 Zr: 0.01 |
A182 F91 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 |
A182 F91 Heat Treatment
| F91 | Type: normalize and temper; Temperature range of austenitizing/solutioning:1900-1975°F[1040-1080°C]; air cool; Temperature range of tempering: 1350-1470°F[730-800°C]. |
A182 F91 Hardness requirement
Brinell Hardness Number, HBW. 190-248
