ASTM/ASME Standard Alloy Pipes
AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the fusion weldability standpoint. The ASTM A519 4130alloy can be hardened by heat treatment.
We offers an extensive range of ASTM A519 4130seamless mechanical tubing is manufactured to meet your specific application requirements. Controlled modifications and adjustments are made to the tube making process for each order and take into consideration end use and all finishing operations (including heat treatment) that will be performed after you have received the tubing.
General Scope
This grade is similar to 4140 in scope which has a higher carbon level giving 4130 an advantage when it comes to weldability, this weldability is achieved at the cost of through section hardenability.
AISI 4130 steel is a low alloy steel that is used in structural designs that may be found in applications such as aircraft engine mounts or welded tubing. It is well known for its ease of welding and ability to harden in commercial applications. It is commonly referred to as chromium-molybdenum steel.
Size (mm) we can supply:
Hot-rolled: O.D.: 51-508; W.T.:7~60; L: max 16000
Cold-drawn: O.D.: 10-50; W.T.:2~10; L: max 16000
Hot-expanded:O.D.: 325-1020; W.T.:6~50; L: max 12000 and other specifications in accordance with customer requirements.
Packing:
Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, Nodestructive Test, Hydrostatic Test.
Surface Treatment:
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting, Epoxy & Fbe Coating Painting as requested.
Composition Specifications of AISI 4130
Range C Si Mn P S Cr Mo
Min 0.28 0.15 0.4 - - 0.8 0.15
Max 0.33 0.35 0.6 0.035 0.04 1.1 0.25
Mechanical Specifications of AISI 4130
Condition Hardened & Tempered
UTS 100KSI min
0.2% Proof Stress 80KSI min
Elongation 20% min
Reduction of Area 40% min
Ordering Information
Orders for material under this specification should include the following, as required, to describe the desired material adequately:
Quantity Feet, meters, or number of lengths
Name of material Seamless Alloy Steel Pipe
Grade STANDARD AND STEEL GRADE
Manufacture Hot-finished or cold-drawn
Size using one of the following:
NPS and Schedule Number
Outside Diameter and Nominal Wall Thickness
Length Specific or Random
End Finish
