• UNS H41180 Valve
  • UNS H41180 Flange
  • UNS H41180 pipe fitting
  • UNS H41180 angle bar
  • UNS H41180 pipe
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UNS H41180

UNS H41180 Valves, UNS H41180 flanges, Pipe Fitting, Steel Pipe, Heat Exchanger and Reducer, Gasket, Tee, Pipe Fitting, Tube Plate, have all specifications. With many yeas production experience, strict control UNS H41180 chemical composition and UNS H41180 mechanical properties.

Production specification
Data center describes many of the common steel models, we can not determine the company's warehouse has all types of steel products inventory or raw materials.

Angle bar: 1mm to 1300mm
Steel Pipe: 1 - 1300mm, also can be customed.
Pipe fitting Size: 1/8 inch - 80 inch (DN6 - DN2000)
Flange Size: DN6 - DN2000
Lenth: Any lenth based on the customer's requirement.

Chemical composition % of the ladle analysis of grade UNS H41180 and Standards

AISI 4118H steel, annealed at 870°C (1600°F), furnace cooled at 11°C (20°F)/hour, 25 mm (1 in.) round
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series steel; Low Alloy Steel; Carbon Steel; Low Carbon steel
Material Notes: Heat treatment: annealed ( heated to 870°C, furnace cooled 11°C/hr to 620°C, air cooled).
Key Words: Alloy Steels, UNS H41180, ASTM A304, SAE J1268
Physical Properties Metric English Comments
Density  7.85 g/cc 0.284 lb/in³
 
Mechanical Properties Metric English Comments
Hardness, Brinell  137 137
Hardness, Knoop  157 157 Converted from Brinell hardness.
Hardness, Rockwell B  78 78 Converted from Brinell hardness.
Hardness, Vickers  36 36 Converted from Brinell hardness.
Tensile Strength, Ultimate  517 MPa 75000 psi
Tensile Strength, Yield  365 MPa 52900 psi
Elongation at Break  33.0 % 33.0 % in 50 mm
Reduction of Area  63.7 % 63.7 %
Modulus of Elasticity  205 GPa 29700 ksi Typical for steel
Bulk Modulus  140 GPa 20300 ksi Typical for steel
Poissons Ratio  0.290 0.290 Calculated
Machinability  60 % 60 % hot rolled and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus  80.0 GPa 11600 ksi Typical for steel
 
Electrical Properties Metric English Comments
Electrical Resistivity  0.0000245 ohm-cm 0.0000245 ohm-cm Typical 4000 series steel
 
Thermal Properties Metric English Comments
Specific Heat Capacity  0.475 J/g-°C 0.114 BTU/lb-°F Typical 4000 series steel
Thermal Conductivity  44.5 W/m-K 309 BTU-in/hr-ft²-°F Typical steel
 
Component Elements Properties Metric English Comments
Carbon, C  0.17 - 0.230 % 0.17 - 0.230 %
Chromium, Cr  0.30 - 0.70 % 0.30 - 0.70 %
Iron, Fe  97.5 - 98.7 % 97.5 - 98.7 % As remainder
Manganese, Mn  0.60 - 1.0 % 0.60 - 1.0 %
Molybdenum, Mo  0.080 - 0.15 % 0.080 - 0.15 %
Phosphorous, P  <= 0.035 % <= 0.035 %
Silicon, Si  0.15 - 0.30 % 0.15 - 0.30 %
Sulfur, S  <= 0.040 % <= 0.040 %

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AISI 4118H Steel, normalized at 910°C (1670°F), air cooled, 14 mm (0.55 in.) round
AISI 4118H Steel, normalized at 910°C (1670°F), air cooled, 100 mm (4 in.) round
AISI 4118H Steel, mock carburized, 150°C (300°F) temper, 14 mm (0.55 in.) round
AISI 4118 Steel, direct quenched from pot, carburized, 150°C (300°F) temper
AISI 4118H Steel, normalized at 910°C (1670°F), air cooled, 25 mm (1 in.) round M4118T / 7480


Machining performance

UNS H41180 the mechanical properties of the report, the report provides detailed performance analysis and application.


Principal Design Features

One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.


Machinability

Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.


Heat Treatment

CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.


Welding

Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.


Forging

Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.


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