AISI/SAE 4130 Alloy Steel Bar

AISI 4130 steel bar is made of high-strength, low-alloy steel that is mainly used in high-temperature, high-pressure, and high-strength industrial fields. 4130 steel is a chromium-molybdenum low-alloy steel that has much higher strength and toughness than typical steel grades. Additionally, the reduced carbon content of this alloy, while limiting strength through thickness, provides better weldability than its 4140 steel counterpart. These properties make AISI 4130 steel bar a popular choice in the aerospace industry for manufacturing commercial and military aircraft components that require high strength and low weight.

Product Description 

Product Description

AISI 4130 steel bar is made of high-strength, low-alloy steel that is mainly used in high-temperature, high-pressure, and high-strength industrial fields. 4130 steel is a chromium-molybdenum low-alloy steel that has much higher strength and toughness than typical steel grades. Additionally, the reduced carbon content of this alloy, while limiting strength through thickness, provides better weldability than its 4140 steel counterpart. These properties make AISI 4130 steel bar a popular choice in the aerospace industry for manufacturing commercial and military aircraft components that require high strength and low weight.

 

Product parameters

Product NameAISI/SAE 4130 Alloy Steel Bar
StandardEN/DIN/JIS/ASTM/BS/ASME/AISI, etc.
Common specifications of round rods3.0-50.8mm,Over 50.8-300mm
Common specifications of flat steel6.35x12.7mm,6.35x25.4mm,12.7x25.4mm
Common specifications of hexagonal rodsAF5.8mm-17mm
Common specifications of square rodsAF2mm-14mm,AF6.35mm,9.5mm,12.7mm,15.98mm,19.0mm,25.4mm
length1-6 meters, size can be customized
Diameter(mm)Hot rolled round bar25-600Cold rolled square bar6-50.8
Hot rolled square bar21-54Cold rolled hexagonal bar9.5-65
Cold rolled round bar6-101.6Forged steel bars200-1000
Surface Technologybright, polished, black
Other serviceMechanical processing (CNC), centerless grinding (CG), heat treatment, annealing, pickling, polishing, rolling, forging, cutting, bending, small processing, etc.

 

Chemical Composition

4130CSiMnSPCrMo
0.28-0.330.15-0.350.4-0.8≤0.0350.0350.8-1.10.15-0.25


Mechanical Behavior

GtadeTensile Strength N/mm2 MinYield Strength N/mm2 MinA, % MinZ, % Min
AISI 41309307351250


Application scope

SAE 4130 round bars are commonly used in structural applications, including brackets, gears, and some aircraft exteriors.


FAQ

Q: Do you accept third-party inspection?

A: Yes, we absolutely accept it.

 

Q: Do you provide samples? Free or extra?

A: The cost of samples is calculated based on the value. Shipping fee is necessary.

 

Q: Do you have a large inventory of steel?

A: Yes, we have a large indoor warehouse with a total annual spot inventory of more than 200,000 tons.

 

 

Q: What is your delivery time and supply capacity?

A: The delivery time is usually within 15~28 working days, and we can supply about 10,000 tons per month.

 

Q: How to order?

A: Buyer sends inquiry-->Buyer gets quotation-->Order confirmation-->Buyer sends deposit-->Seller prepares goods-->Seller strictly inspects-->Buyer arranges balance payment-->Packaging and delivery.

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