|
Product List
|
 |
| |
Nickel and Special Alloys |
|
|
|
|
Chrome moly
Keywords: Chrome alloys, chrome-moly, A182 F1, F5, F9, F11, F12, F22, F91, Cro-mo, Cr-mo 
- Chrome-moly is an abbreviation for ‘chromium-molybdenum steel’ (sometimes spelled ‘cro-mo’ or ‘cr-mo’). Chrome-moly is a range of low alloy steels used, for example, to produce tubing for bicycle frames and race-car roll cages. It is not as lightweight as aluminum alloys, but has the advantages of high tensile strength and malleability, and is also easily welded. Although chrome-moly contains chromium, it does not have the corrosion resistance of stainless steel, though it does have a high tensile strength, and an excellent (high) weight to strength ratio.
-
-
As such, chrome-moly flanges, fittings, and pipe are not used in systems where abrasive compounds or chemicals are present, or where extremely high temperatures are found. However, their lower cost and great strength gives them a plethora of applications throughout the industrial and commercial markets. Water and sewage, pulp and paper, and natural gas all employ these types of metals.
F5 - This is a chromium-molybdenum based low alloy-steel grade. It is characterized by 4 to 6% chromium – an average of 5%, hence the numerical nomenclature.
-
- Low alloy steels are usually used to achieve better hardenability, which in turn improves their other mechanical properties. They are also used to increase corrosion resistance in certain environmental conditions.
-
- Heat Treatment: Annealing – heat to min. of 1750°F [955°C] and furnace cool for maximum strength and hardness. [or] Normalizing and tempering – heat to min. of 1750°F [955°C], air cool, heat to min. of 1250°F [675°C], and air cool.
 - This grade is available in all flanges and fittings.
F9 - This is a chromium-molybdenum based low alloy-steel grade. It is characterized by 8 to 10% chromium – an average of 9%, hence the numerical nomenclature.
-
- Low alloy steels are usually used to achieve better hardenability, which in turn improves their other mechanical properties. They are also used to increase corrosion resistance in certain environmental conditions.
-
- Heat Treatment: Annealing – heat to min. of 1750°F [955°C] and furnace cool for maximum strength and hardness. [or] Normalizing and tempering – heat to min. of 1750°F [955°C], air cool, heat to min. of 1250°F [675°C], and air cool.
 - This grade is available in all flanges and fittings.
-
F11
- This is a chromium-molybdenum based low alloy-steel grade. It is characterized by 1 to 1.5% chromium – an average of 1%, hence the numerical nomenclature. All of our material is supplied in F11 Class 2 (CL 2), although we can also supply Class 1 or Class 3 upon request.
-
- Low alloy steels are usually used to achieve better hardenability, which in turn improves their other mechanical properties. They are also used to increase corrosion resistance in certain environmental conditions.
-
- Heat Treatment: Annealing – heat to min. of 1650°F [900°C] and furnace cool for maximum strength and hardness. [or] Normalizing and tempering – heat to min. of 1650°F [900°C], air cool, heat to min. of 1150°F [620°C], and air cool.
 - This grade is available in all flanges and fittings.
-
F22
- This is a chromium-molybdenum based low alloy-steel grade. It is characterized by 2 to 2.5% chromium – an average of 2.25%, hence the numerical nomenclature. All of our material is supplied in F22 Class 3 (CL 3), although we can also supply Class 1 upon request.
-
- Low alloy steels are usually used to achieve better hardenability, which in turn improves their other mechanical properties. They are also used to increase corrosion resistance in certain environmental conditions.
-
- Heat Treatment: Annealing – heat to min. of 1650°F [900°C] and furnace cool for maximum strength and hardness. [or] Normalizing and tempering – heat to min. of 1650°F [900°C], air cool, heat to min. of 1250°F [675°C], and air cool.
 - This grade is available in all flanges and fittings. We customarily supply F22 Class 3, the predominate class of this alloy.
|
|
|
