AISI 1055 Round Bar
AISI 1055 Round Bar
AISI 1055 Round Bar
AISI 1055 Round Bar
AISI 1055 Round Bar

AISI 1055 Round Bar

SAE 1055 Chemical composition and Mechanical properties C(％): 0.52～0.60 Mn(％): 0.60～0.90 P(％)≤: 0.040 S(％)≤: 0.050

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Product Introduction

AISI 1055 round bars are:

1. Good strength and toughness
2. Easily machinable
3. Good weldability
4. Good wear resistance
5. Resistant to corrosion and oxidation

The material is also available in different grades such as AISI 1055G, which is a variant with improved grain structure and higher toughness. The material is widely used in the manufacturing industry due to its excellent properties and availability in different forms.

product-700-525

AISI 1055 Composition

Element	Content (%)
Iron, Fe	98.41-98.9
Manganese, Mn	0.60-0.90
Carbon, C	0.50-0.60
Sulfur, S	≤ 0.050
Phosphorous, P	≤ 0.040

Mechanical Properties

Properties	Metric	Imperial
Tensile strength, ultimate	660 MPa	95700 psi
Tensile strength, yield	560 MPa	81200 psi
Modulus of elasticity	190-210 GPa	29700-30458 ksi
Bulk modulus (typical for steel)	140 GPa	20300 ksi
Shear modulus (typical for steel)	80 GPa	11600 ksi
Poissons ratio	0.27-0.30	0.27-0.30
Elongation at break (in 50 mm)	10%	10%
Reduction of area	40%	40%
Hardness, Brinell	197	197
Hardness, Knoop (converted from Brinell hardness)	219	219
Hardness, Rockwell B (converted from Brinell hardness)	92	92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only)	13	13
Hardness, Vickers (converted from Brinell hardness)	207	207
Machinability (based on AISI 1212 steel. as 100 machinability)	55	55