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ASTM A182 Low Alloy Steel Forgings

Hebei Metals Industrial Limited supplies ASTM A182 low alloy steel, especially Cr-Mo alloy steel forgings for high-temperature piping industry. The ASTM A182 low alloy steel forgings cover pipe flanges, forged fittings, valves and parts which are widely used in boilers, pressure vessels, steam lines and other high-temperature applications. The ferritic alloy steel(Cr-Mo alloy steel) forgings are also endorsed by ASTM A336 which is the standard specification for alloy steel forgings for pressure and high-temperature parts.

ASTM A182 F22 welding neck & swivel flanges

ASTM A182 F22 alloy steel forgings: welding neck & swivel flanges.

1. Chemical Composition Requirements

Chemical Composition of ASTM A182 Low Alloy Steels, %
ID. Symbol*CMnPSSiCrMoOthers
F1
0.280.60-0.900.0450.0450.15-0.35-0.44-0.65-
F20.05-0.210.60-0.800.0400.0400.10-0.600.50-0.810.44-0.65-
F50.150.30-0.600.0300.0300.504.0-6.00.44-0.65*A
F5A0.250.600.0400.0300.504.0-6.00.44-0.65*B
F90.150.30-0.600.0300.0300.50-1.008.0-10.00.90-1.10-
F100.10-0.120.50-0.800.0400.0301.00-1.407.0-9.0-*C
F910.08-0.120.30-0.600.0200.0100.20-0.508.0-9.50.85-1.05*D
F920.07-0.130.30-0.600.0200.0100.508.5-9.50.30-0.60*E
F1220.07-0.140.700.0200.0100.5010.00-11.500.25-0.60*F
F9110.09-0.130.30-0.600.0200.0100.10-0.508.5-9.50.90-1.10*G
F11 CLASS10.05-0.150.30-0.600.0300.0300.50-1.001.00-1.500.44-0.65-
F11 CLASS20.10-0.200.30-0.800.0400.0400.50-1.001.00-1.500.44-0.65-
F11 CLASS30.10-0.200.30-0.800.0400.0400.50-1.001.00-1.500.44-0.65-
F12 CLASS10.05-0.150.30-0.600.0450.0450.500.80-1.250.44-0.65-
F12 CLASS20.10-0.200.30-0.800.0400.0400.10-0.600.80-1.250.44-0.65-
F210.05-0.150.30-0.600.0400.0400.502.7-3.30.80-1.06-
F3V0.05-0.100.30-0.600.0200.0200.102.8-3.20.90-1.10*H
F3VCb0.10-0.150.30-0.600.0200.0100.102.7-3.30.90-1.10*I
F22 CLASS10.05-0.150.30-0.600.0400.0400.502.00-2.500.87-1.13-
F22 CLASS30.05-0.150.30-0.600.0400.0400.502.00-2.500.87-1.13-
F22V0.11-0.150.30-0.600.0150.0100.102.00-2.500.90-1.10*J
F230.04-0.100.10-0.600.0300.0100.501.90-2.600.05-0.30*K
F240.05-0.100.30-0.700.0200.0100.15-0.452.20-2.600.90-1.10*L
FR0.200.40-1.060.0450.050---*M
F360.10-0.170.80-1.200.0300.0250.25-0.500.300.25-0.50*N

*”ID.S” refers to the identification symbol of the grades stipulated by ASTM A182.
*All values are maximum unless a range is provided or otherwise specified.
*A – Ni:≤0.50; *B – Ni:≤0.50; *C – Ni:19-22;
*D – Ni:≤0.40,Co:0.06-0.10%,N:0.03-0.07,Al:≤0.02,V:0.18-0.25,T≤0.01%,Zr≤0.01.
*E – Ni:≤0.40,Co:0.04-0.09;V:0.15-0.25,N:0.030-0.070,Al:≤0.02,W:1.50-2.00,B:0.001-0.006,Ti&Zr:≤0.01.
*F – Ni:≤0.50,Co:0.04-0.10,V:0.15-0.30,B:≤0.005,N:0.04-0.10,Al:≤0.02,Cu:0.30-1.70,W:1.5-2.5,Ti&Zr:≤0.01.
*G – Ni:≤0.40,Co:0.06-0.10,W:0.90-1.10,Al:≤0.02,N:0.04-0.09,V:0.18-0.25,B:0.0003-0.006,Ti&Zr:≤0.01.
*H – Ti:0.015-0.035,V:0.20-0.30,B:0.001-0.003.
*I – Ni:≤0.25,Co:0.015-0.070,Ti:≤0.015,V:0.20-0.30,Cu:≤0.25,Ca:0.0005-0.0150.
*J – Ni:≤0.25,Co:≤0.07,Ti≤0.030,Cu≤0.20,V:0.25-0.35,B:≤0.002,Ca:≤0.015.
*K – Ni:≤0.40,Co:0.02-0.08,Ti:0.005-0.060,V:0.20-0.30,B:0.001-0.006,N:≤0.015,Al:≤0.030,W:1.45-1.75.
*L – Ti:0.06-0.10,V:0.20-0.30,N:≤0.12,Al:≤0.020,B:0.0015-0.0070
*M – Ni:1.60-2.24,Cu:0.75-1.25. *N – Ni:1.00-1.30,Co:0.015-0.045,N:≤0.20,Al:≤0.050,Cu:0.50-0.80,V:≤0.02.
*All chemical content values listed above from *A to *N shall be furnished with the unit of %.

ASTM A182 F91 forged fittings manufactured to ASME B16.11

Forged Fittings manufactured to ASME B16.11. Material: ASTM A182 F91 & ASTM A182 F5. Elbow, tee, union, coupling, plug, weld outlet.

2. Mechanical Properties

Mechanical Properties of ASTM A182 Low Alloy Steels
GradeTensile Strength
min. ksi[MPa]
Yield Strength
min. ksi[MPa]
Elongation, min. %Reduction of
Area, min. %
Brinell Hardness
Number, HBW
F170[485]40[275]2030143-192
F270[485]40[275]2030143-192
F570[485]40[275]2035143-217
F5a90[620]65[450]2250187-248
F985[585]55[380]2040179-217
F1080[550]30[205]3050-
F9190[620]60[415]2040190-248
F9290[620]64[440]2045≤269
F12290[620]58[400]2040≤250
F91190[620]64[440]1840187-248
F11 Class 160[415]30[205]2045121-174
F11 Class 270[485]40[275]2030143-207
F11 Class 375[515]45[310]2030156-207
F12 Class 160[415]32[220]2045121-174
F12 Class 270[485]40[275]2030143-207
F2175[515]45[310]2030156-207
F3V & F3VCb85-110[585-760]60[415]1845174-237
F22 Class 160[415]30[205]2035≤170
F22 Class 375[515]45[310]2030156-207
F22V85-110[585-780]60[415]1845174-237
F2374[510]58[400]2040≤220
F2485[585]60[415]2040≤248
FR63[435]46[315]2538≤197
F36 Class 190[620]64[440]15-≤252
F36 Class 295.5[660]66.5[460]15-≤252

3. Heat Treatment

Heat Treatment of ASTM A182 Alloy Steels
GradeHeat Treatment Process
F1Type: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1150°F[620°C].
F2Type: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1150°F[620°C].
F5, F5aType: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1750°F[955°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1250°F[675°C].
F9Type: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1750°F[955°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1250°F[675°C].
F10Type: solution treat and quench; Minimum solutioning temperature:1900°F[1040°C]; Cooling media: liquid; Quenching cool below: 500°F[260°C]
F91Type: 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].
F92Type: 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].
F122Type: 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].
F911Type: normalize and temper; Temperature range of austenitizing/solutioning:1900-1975°F[1040-1080°C]; air or liquid cool; Temperature range of tempering: 1365-1435°F[740-780°C].
F11 Class 1, 2, 3Type: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1150°F[620°C].
F12 Class 1, 2Type: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1150°F[620°C].
F21, F3V, F3VCbType: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1750°F[955°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1250°F[675°C].
F22, Class 1, 3Type: anneal, or normalize and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:furnace or air cool; Minimum tempering temperature:1250°F[675°C].
F22VType: normalize and temper, or quench and temper; Minimum austenitizing/solutioning temperature: 1650°F[900°F]; air or liquid cool; Minimum tempering temperature: 1250°F[675°C].
F23Type: 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].
F24Type: normalize and temper; Temperature range of austenitizing/solutioning:1800-1975°F[980-1080°C]; air or liquid cool; Temperature range of tempering: 1350-1470°F[730-800°C].
FRType: anneal, or normalize, or normalize and temper; Minimum austenitizing/solutioning temperature: 1750°F[955°C]; air or furnace cool; Minimum tempering temperature: 1250°F[675°C].
F36 Class 1Type: normalize and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:air cool; Minimum tempering temperature:1100°F[595°C].
F36 Class 2Type: normalize and temper, or quench and temper; Minimum austenitizing/solutioning temperature:1650°F[900°C]; Cooling media:air cool or liquid; Minimum tempering temperature:1100°F[595°C].

*After hot working, the ASTM A182 low alloy steel forings shall be cooled to a temperature below 1000°F[538°C] prior to heat treatment.

4. Typical Steel Grades, UNS designation, and Steel Names

Steel GradesUNS DesignationSteel Names
ASTM A182 F1K12822C-0.5Mo
ASTM A182 F2K121220.5Cr-0.5Mo
ASTM A182 F5K415455Cr-0.5Mo
ASTM A182 F5aK425445Cr-0.5Mo
ASTM A182 F9K909419Cr-1Mo
ASTM A182 F10S3310020Ni-8Cr
ASTM A182 F91K909019Cr-1Mo-V
ASTM A182 F92K924609Cr-0.5Mo-1.8W-V
ASTM A182 F11 CL1K115971.25Cr–0.5Mo–Si
ASTM A182 F11 CL2K115721.25Cr–0.25Mo–Si
ASTM A182 F11 CL3K115721.25Cr–0.5Mo–Si
ASTM A182 F12 CL1K115621Cr-0.5Mo
ASTM A182 F12 CL2K115641Cr-0.5Mo
ASTM A182 F22 CL1K215902.25Cr-1Mo
ASTM A182 F22 CL3K215902.25Cr-1Mo
ASTM A182 F21K315453Cr-1Mo
ASTM A182 F122K91271-
ASTM A182 F911K91061-
ASTM A182 F3VK31830-
ASTM A182 F3VCbK31390-
ASTM A182 F22VK318352.25Cr-1Mo-V
ASTM A182 F23K41650-
ASTM A182 F24K307362.25Cr-1Mo-0.25V-Ti-B
ASTM A182 FRK22035-
ASTM A182 F36K210011.15Ni-0.65Cu-Mo-Co

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    Hebei Metals Industrial Limited
    (Shijiazhuang Metalsin Pipeline Tech Co., Ltd)
    No. 176, Zhonghua South Street, Shijiazhuang, China.
    Tel: +86-311-89642206
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    Web: www.metalspiping.com
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