9310

  • G93100

SpecificationASTM A322, ASTM A29

It is nickel-chromium-molybdenum surface hardening steel with good strength and toughness. In addition to these, it has other advantages, such as high hardenability, high core hardness, and high faitgue resistance.

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Introduction

Product properties

˙High hardenability

˙High hardness after heat treatment

˙High fatigue resustance

Industrial Applications

˙Gear
˙Heavy gear shaft

Specifications

Chemical composition (wt. %)

Element
C
Si
Mn
P
S
Ni
Cr
Mo
Cu
B
Min.
0.07
0.15
0.40
-
-
3.00
1.00
0.08
-
-
Max.
0.13
0.35
0.70
0.025
0.025
3.50
1.40
0.15
0.35
0.001

Physical Property

Density (g/cm^3)
7.86

Thermal Expansion Coefficient

Temperature (℃)
10^-6/℃
500
176
600
165

Thermal Conductivity

Temperature (℃)
W/m·K
20
11.5

Mechanical Property

Items
Annealed
Hardness (HBW)
229 max.

Size Ranges

Products
Diameter (mm)
Length (mm)
Rolled bar
95.2~600
3,000~5,700
Forged bar
10~95
3,000~5,700
Billet
130x130, 140x140, 150x150, 160x160
7,000 max
Flat bar
80x80 (min.)
Based on the customer needs

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