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
