ASTM A182 F22, F11, F5, F9 & F91 Chrome Moly Alloy Pipe Flanges

 

ASTM A182 CHROME MOLY ALLOY STEEL PIPE FLANGES

ASTM A182 F22, F11, F5, F9 & F91 Alloy Steel Flanges

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Chromium-Molybdenum Alloy Steel or Chrome-Moly, CrMo is an alloy steel intended for high temperature and high pressure services.  Chrome-Moly is used in the power generation industry and the petro-chemical industry because of its tensile strength, corrosion resistance and high-temperature strength.  Chrome-Moly has a better strength to Weight ratio than steel, which enables designers to use thinner wall pipe or smaller diameter tubing to reduce overall weight.

Chromium-Molybdenum Alloy Steel has strong resistance to rupturing at high temperatures and high pressures.  Chrome-Moly is also resistant to cracking from hydrogen attack and hot sulfide corrosion cracking.

Chrome-Moly grades P11, P22, P91 and P92 are used in the power industry.  Chrome-Moly grades P5 and P9 are used in petro-chemical refinery processes.  Chrome-Moly Forged Fittings & Flanges are available in grades F5, F9, F11, F22, F91, F92.  Chrome-Moly Alloy Butt Weld Fittings are available in grades WP5, WP9, WP11, WP22, WP91, WP92. F11 and F22 material meet NACE-MRO 175.

Chrome Moly Alloy Steel Pipe Flanges Type:

• Buttweld chrome moly flanges
• Raised Face Slip On chrome moly flanges
• Raised Face Socket Weld chrome moly flanges
• Raised Face Threaded chrome moly flanges
• Raised Face Blind chrome moly flanges
• Raised Face Weld Neck chrome moly flanges
• Raised Face Lap Joint Flanges
• Raised Face Plate Flanges
• Orifiace Falnges
• Ring Joint Flanges

Chrome Moly Alloy Pipe Flange Specification:

ASTM A182

Chrome Moly Alloy Flange Size:

1/2″ through 120″

Chrome Moly Alloy Pipe Flange Pressure Rating:

150#, 300#, 400#, 600#, 900#, 100#, 2500#

Chrome Moly Alloy Pipe Flange Material Grades:

Trade Name	Grade	UNS #	Flanges
1 1/4 Chrome	F11 Class 1	K11597	A182 / SA182
1 1/4 Chrome	F11 Class 2	K11572	A182 / SA182
1 1/4 Chrome	F11 Class 3	K11572	A182 / SA182
2 1/4 Chrome	F22 Class 1	K21590	A182 / SA182
2 1/4 Chrome	F22 Class 3	K21590	A182 / SA182
5 Chrome	F5	K41545	A182 / SA182
9 Chrome	F9	K90941	A182 / SA182
F91	F91	K90901	A182 / SA182
F92	F92	K92460	A182 / SA182

Chrome Moly Alloy Pipe Flanges Dimensions

Chrome Moly Alloy Pipe Flanges Weight

ASTM A182 F22, F11, F5, F9 & F91 Chrome Moly Alloy Pipe Flanges Chemical Properties

	COMPOSITION
GRADE	C	Mn	Cr	Mo	Cb	N	Al	V
F5	0.15 max	0.3 – 0.6	4-6	0.44 – 0.65
F9	0.15 max	0.3 – 0.6	8-10	0.9 – 1.1
F11	0.1 – 0.2	0.3 – 0.8	1 – 1.5	0.44 – 0.65
F22	0.05 – 0.15	0.3 – 0.6	2 – 2.5	0.87 – 1.13
F91	0.08 – 0.12	0.3 – 0.6	8 – 9.5	0.85 – 1.05	0.06 – 0.1	0.03 – 0.07	0.4 max	0.18 – 0.25

ASTM A182 F22, F11, F5, F9, F1, F12 & F91 Chome Moly Alloy Steel Flanges Mechanical Properties

Grade	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Alloy Steel A182 F1	275	485	20%
Alloy Steel A182 F5	275	485	20%
Alloy Steel A182 F9	380	585	20%
Alloy Steel A182 F11	205	415	20%
Alloy Steel A182 F12	275	485	20%
Alloy Steel A182 F22	205	415	20%
Alloy Steel A182 F91	380	585	20%

Design Features – Chrome-Moly

• Strong resistance to rupturing at high temperatures and high pressures
• May be used for Hydrogen Sulfide Corrosion Services
• Resistant to cracking from hydrogen attack and embrittlement
• Resistant to hot sulfide corrosion cracking
• Can be used for NACE Applications where sour environments are under high temp and pressure
• Can be used in NACE-MRO 175 Sour Service
• Ideal for creep rupture applications
• Can handle high temperatures with very low elasticity