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3.5" Alloy Steel Round Bar 4340-Normalized Rough Turned -Part #: 7408

alloy-steel-round-bar-4340-normalized-rough-turned-main

FREE MTR AVAILABLE

FULL
LENGTHS

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Dimension(s) for this product

Diameter: 3.5"

We carry 45 additional available dimensions for Alloy Steel Round Bar 4340

Material Meets These Standard(s): ASTM-A322, AMS-6415, AMS-6484, ASTM-A29
Read More Specifications See Product Guide

Select length below or Custom Cut

12" (1 ft.) - $514.40
wt. 32.66 lb.

24" (2 ft.) - $996.78
wt. 65.32 lb.

36" (3 ft.) - $1,447.16
wt. 97.98 lb.

48" (4 ft.) - $1,865.54
wt. 130.64 lb.

144" (12 ft.) - $4,526.68
wt. 391.92 lb.

Custom Cut - Select For Price

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QTY

$514.40 ea.

$514.40 for 1

With the tightest custom cut tolerances of any small quantity US metal supplier, your materials get a 3-point inspection to ensure quality and accuracy before it ships.

OVERVIEW SPECIFICATIONS AND TECHNICAL INFORMATION

See Alloy Steel Tolerances

Alloy Steel Round Bar 4340 Normalized Rough Turned has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. Additionally, 4340 can be cold worked easily in the annealed state. It is typically used in military aircraft, automotive systems, hydraulic parts, machine tools, and a steel crankshafts.

Dimension Name	Specification
Diameter	3.5
Max Length	144
Alloy	4340
Temper	Normalized
Production Method	Rough Turned
MTR Availability	Yes
Full Length	true
Material	Alloy Steel
Shape	Bar-Round
Custom Cut Warehouse	1

Material Specifications

This material meets the following specs: ASTM -A322, AMS -6415, AMS -6484, ASTM -A29

Weight/Lineal Foot
32.66 pounds

Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.

Mechanical Properties
Property	Value
Brinell Hardness 500 kg load	245
Rockwell Hardness B Scale	100
Density g/cm^3	7
Elongation Typical %	12
Melting Point °F	2580 - 2650
Modulus of Elasticity KSI x 10^3	29
Reduction of Area %	36
Specific Heat BTU/lb-°F (32-212F)	1
Tensile Strength KSI	185
Thermal Conductivity BTU-in/hr-ft^2-°F	309
Yield Strength KSI	125
Shear Strength KSI	110

Chemistry Information: 4340 Alloy Steel
Element	Percentage
C	0.37 - 0.43
Cr	0.8
Fe	96
Mn	0.7
Ni	1.83
P	0.035 max
S	0.04 max
Si	0.23

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OVERVIEW SPECIFICATIONS AND TECHNICAL INFORMATION

Dimension Name

Specification

Weight/Lineal Foot

Mechanical Properties

Chemistry Information: 4340 Alloy Steel

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