CHROME MOLY/ALLOY STEEL VALVES F11/F22/F5/F9

Global Supply Line stocks and indents a large range of ‘chrome-moly’ valves. These valves are manufactured from low alloy steel containing chromium and molybdenum making them suitable for higher temperature service especially for higher pressure and temperature combinations. In addition, these valves have the added advantage of anti-corrosive properties. Grades include forged ASTM A182 F5, F5a, F9, F11 and F22, and their cast equivalents ASTM A217 C5, C12, WC5, WC6 and WC9. Higher grades like A112 F9/ASTM A217 C12A are available on an indent basis.

Description

Chrome moly alloy is lightweight but strong, (similar to AISI 4130). With the additions of molybdenum and chromium, chrome moly alloy offers exceptional weldability along with oxidation and scaling resistance.

Design Features

  • Resistant to scaling and oxidation
  • Harden through heat treatment
  • Excellent weldability
  • Strong and tough
  • Excellent ductility

Applications

  • Pressure piping
  • Pressure vessels
  • Welded tubing applications

Equivalent Grades & Applications

Material Group Common Name Type UNS Forging Spec. Casting Spec. Equivalent DIN DIN W. No Application
Low Alloy Steel Moly Steel C-1/2Mo K12822 A182-F1 cl2 A217-WC1 15M03 1.5415 Up to 470ºC* (875ºF)
Alloy Steel Chrome Moly 1.1/4Cr-1/2Mo K11572 A182-F11 cl2 A217-WC6 13CRM044 1.7335 Up to 593ºC (1100ºF)
2.1/4Cr-1Mo K21590 A182-F22 cl3 A217-WC9 10CRM0910 1.7380 Up to 593ºC (1100ºF), HP steam
5Cr-1/2Mo K41545 A182-F5/F5a A217-C5 12CRMO195 1.7362 High temp refinery service
9Cr-1Mo K90941 A182-F9 A217-C12 X 12 CrMo 9 1 1.7386 High temp erosive refinery service
9Cr-1Mo-V A182-F91 A217-C12A X 10 CrMoVNb 9 1 1.4903 High pressure steam

*Not prolonged usage above 425ºC F1, 470ºC WC1, 595ºC F11

Chemical Composition & Mechanical Properties ASTM A182 †

ELEMENT & PROPERTIES LOW ALLOY STEEL MEDIUM ALLOY STEEL
F11 CL2 F22 CL3 F5 F9
CARBON 0.10-0.20 0.05-0.15 0.15 MAX 0.15 MAX
MANGANESE 0.30-0.80 0.30-0.60 0.30-0.60 0.30-0.60
PHOSPHORUS MAX 0.040 0.040 0.03 0.030
SULFUR MAX 0.040 0.040 0.03 0.030
SILICON 0.50-1.00 0.50 MAX 0.50 MAX 0.50-1.00
NICKEL MAX 0.50
CHROMIUM 1.00-1.50 2.00-2.50 4.00-6.00 8.0-10.0
MOLYBDENUM 0.44-0.65 0.87-1.13 0.44-0.65 0.90-1.10
OPPER MA
COLUMBIUM MAX
VANDIUM MAX
TENSILE STRENGTH PSI (MPA) 70,000 (485) 75,000 (515) 70,000 (485) 85,000 (585)
YIELD STRENGTH PSI MIN 40,000 (275) 45,000 (310) 40,000 (275) 55,000 (380)
ELONGATION 2” % MIN 20 20 20 20
REDUCTION AREA % MIN 30 30 35 40
HARDNESS (HB) MAX* 143 ~ 207 156 ~ 207 143 ~ 217 179 ~ 217

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

Applications

FORGING SPECIFICATION COMMON DESIGNATION MATERIAL SUFFIX WROUGHT BAR SPECIFICATION SERVICE RECOMMENDATIONS COMMON API TRIM # FOR THIS BASE MATERIAL
150 TO 600 # 900 TO 2500 #
A182 F1 C-1/2 Mo Low Alloy Steel ASTM A217 Grade WC1 A182 F1 Class 1 Non-corrosive applications Including water, oil and gases at temperatures between: -29 ~ 593ºC* (Not prolonged use > 470ºC). 8 8A 12/12A 5/5A
12
16
A182 F2 0.75% Ni; Mo; 0.75% Cr Low Alloy Steel ASTM A217 Grade WC5 A182 F2 Non-corrosive applications including water, oil and gases at temperatures F2:-29ºC ~ 538ºC, WC5: -29ºC ~ 575ºC 8 8A 12/12A 5/5A
12
16
A182 F11 1 1/4% Chrome; 1/2% Moly Low Alloy Steel ASTM A217 Grade WC6 A182 F11 Class 2 Non-corrosive applications including water, oil and gases at temperatures between -30ºC (-20ºF) and +593ºC (+1100ºF). 8 8A 12/12A 5/5A
12
16
A182 F22 2 1/4% Chrome Low Alloy Steel ASTM A217 Grade WC9 A182 F22 Class 3 Non-corrosive applications including water, oil and gases at temperatures between -30ºC (-20ºF) and +593ºC (+1100ºF). 8 8A 12/12A 5/5A
12
16
A182 F5/F5a 5% Chrome; 1/2% Moly, Medium Alloy Steel ASTM A217 Grade C 5 A182 F5/F5a Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -30ºC (-20ºF) and +650ºC (+1200ºF). 8 8A 12/12A 5/5A
12
16
A182 F9 9% Chrome; 1% Moly, Medium Alloy Steel ASTM A217 Grade C12 A182 F9 Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -30ºC (-20ºF) and +650ºC (+1200ºF). 8 8A 12/12A 5/5A
12
16
A182 F91 9% Chrome; 1% Moly; V-N, Medium Alloy Steel ASTM A217 Grade C12-A A182 F91 Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -30ºC (-20ºF) and +650ºC (+1200ºF). 8 8A 12/12A 5/5A
12
16

* Not for prolonged use over 470ºC

Major Categories of Common Valve Materials

FORGED

CAST

CARBON STEEL
ASTM A105N ASTM A216 WCB/WCC
ASTM A350 LF2 ASTM A352 LCB/LCC
ALLOY STEEL
ASTM A350 LF3 ASTM A352 LC3
ASTM A182 F5A/F5 ASTM A217 C5
ASTM A182 F9 ASTM A217 C12
ASTM A182 F11 ASTM A217 WC6
ASTM A182 F22 ASTM A217 WC9
ASTM A182 F91 ASTM A217 C12A
AUSTENITIC STAINLESS STEEL
ASTM A182 F304/F304L ASTM A351 CF8/CF3
ASTM A182 F316/F316L ASTM A351 CF8M/CF3M
ASTM A182 F347 ASTM A351 CF8C
ASTM A182 F321
ASTM A182 F44 (6MO) ASTM CK3MCuN
ASTM A182 F20* (ALLOY 20) ASTM A351 CN7M
FERRITIC-AUSTENITIC STAINLESS STEEL
ASTM A182 F51 – UNS S31803 (DUPLEX S.S.) ASTM A351 CD3MN
ASTM A182 F53 – UNS S32750 (SUPER DUPLEX S.S.) A890 GR.5A CE3MN*
ASTM A182 F55 – UNS S32760 (SUPER DUPLEX S.S.) A890 GR.6A CD3MWCuN
NICKEL ALLOY
INCONEL 825 – UNS N08825 ASTM B564-N08825 A484 CU 5MCuC*
INCONEL 600 – UNS N06600 ASTM B564-N06600 A494 CY40*
INCONEL 625 – UNS N06625 ASTM B564-N06625 A494 CW6MC*
MONEL 400 – UNS N04400 ASTM B564-N04400 A494 M35-1
TITANIUM
ASTM B381 GR.F2 ASTM B367 GR.C2
ASTM B381 GR.F3 ASTM B367 GR.C3

*No longer referenced in ASME B16.34-2009

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