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You are here : section steel--Katalor steel > News > 正文AISI 4340 steel pipe, AISI 4340 steel pipe chemical composition

AISI 4340 steel pipe, AISI 4340 steel pipe chemical composition

AISI 4340 steel is a medium carbon, low alloy steel known for its toughness and strength in relatively large sections. AISI 4340 is also one kind of nickel chromium molybdenum steels.
AISI 4340 steel pipe has a favorable response to heat treatment (usually oil quenching followed by tempering) and exhibits a good combination of ductility and strength when treated thusly.
Specification of AISI 4340 steel pipe:
Outside Diameter: 51-760mm
Wall Thickness: 4-120mm
Length: as you required.
AISI 4340 steel pipe chemical composition (max %):

Grade	C	Mn	Si	P	S	Cr	Ni	Mo
AISI 4340	0.38-0.43	0.60-0.80	0.15-0.35	0.025	0.035	0.70-0.90	1.65-2.00	0.20-0.30

AISI 4340 steel pipe Mechanical Properties

Properties	Metric
Tensile strength	745 MPa
Yield strength	470 MPa
Elongation at break	0.22

AISI 4340 steel pipe can be cold worked using all conventional methods in the annealed condition. It has high ductility.
As a professional AISI 4340 steel pipe supplier, we promise we can offer you the qualified steering box bevel gears at the competitive price and rapid delivery time.