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UNS G40370

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UNS G40370 properties and heat treatment forged piece, Including UNS G40370 application and specifications, We have all specifications,Including UNS G40370 steel plate, UNS G40370 sheet, UNS G40370 square steel, UNS G40370 flat bar,UNS G40370 round bar,UNS G40370 forgings, we can own production and sales.


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Specialized high quality steel

We have the advantages of equipment, technologies and price

forged/hot rolling/ extrusion of steel


We can produce the UNS G40370 has the following specifications:

Round bar steel: 1mm to 3000mm

Square-shape steel: 1mm to 2000mm

Plate steel:0.1mm to 2500mm

Width: 10mm to 2500mm

Lenth: We can supply any lenth based on the customer's requirement.

Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.

Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement

Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement

Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.

Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.

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Chemical composition % of the ladle analysis of grade UNS G40370 and Standards

AISI 4037 steel
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series steel; Low Alloy Steel; Carbon Steel; Medium Carbon steel

Material Notes: Oil quenched. Forging temp.: 1230 °C (2250°F) max. Annealing temp.: 830°C - 925°C (max. hardness 183 HB). Normalizing temp.: 855 - 955°C (approx. hardness 235 HB). Hardening temp.: 830 - 855°C

Key Words: Alloy Steels, UNS G40370, ASTM A322, ASTM A331, ASTM A519, ASTM A547, SAE J404, SAE J412, SAE J770
 

Physical Properties Metric English Comments
Density  7.85 g/cc 0.284 lb/in³
 
Mechanical Properties Metric English Comments
Hardness, Brinell  196 196
Hardness, Knoop  218 218 Converted from Brinell hardness.
Hardness, Rockwell B  92 92 Converted from Brinell hardness.
Hardness, Rockwell C  12.0 12.0 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
Hardness, Vickers  206 206 Converted from Brinell hardness.
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  70 % 70 % annealed 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  48.1 W/m-K 334 BTU-in/hr-ft²-°F 100°C
  33.9 W/m-K
@Temperature 600 °C
235 BTU-in/hr-ft²-°F
@Temperature 1110 °F
  39.4 W/m-K
@Temperature 400 °C
273 BTU-in/hr-ft²-°F
@Temperature 752 °F
  45.3 W/m-K
@Temperature 200 °C
314 BTU-in/hr-ft²-°F
@Temperature 392 °F
 
Component Elements Properties Metric English Comments
Carbon, C  0.35 - 0.40 % 0.35 - 0.40 %
Iron, Fe  97.98 - 98.6 % 97.98 - 98.6 % As remainder
Manganese, Mn  0.70 - 0.90 % 0.70 - 0.90 %
Molybdenum, Mo  0.20 - 0.30 % 0.20 - 0.30 %
Phosphorous, P  <= 0.035 % <= 0.035 %
Silicon, Si  0.15 - 0.35 % 0.15 - 0.35 %
Sulfur, S  <= 0.040 % <= 0.040 %

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M4037A / 7455
 




Machining performance

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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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