Materials

4E Cast Iron

Overview

Kormax 4E Continuous Cast Iron bars consist of a uniform pearlitic structure from surface to core. As a continuous cast iron bar it has a fine grain structure combined with the fine graphite flake size and dense homogeneous structure. The material is well suited for high speed machining and is suitable in applications that demand the ability to withstand high pressures without leaking.

Common Applications

Distributor Blocks
Hydraulic Cylinder Components
Pistons
Slide Bearings

Key Features

Suitable for High-Speed Machining
Withstands high pressures without leaking
Low Tensile Strength & Elongation
Excellent vibration damping properties

Material Profile

Profile
Size Range
Metric Size Range (mm)
Imperial Size Range (in)
NZ (Availability)
AUS (Availability)
Manufacturing Method
Solid Round Bar
See Size Range
40 to 400 (OD)
-
Stocked
N/A
Continuous Cast
Diameter (mm)
Diameter (inch)
Weight (Kg/MTR)
40
36
9.60
45
41
12.20
65
59
25.30
70
64
29.30
80
74
38.30
90
84
48.50
95
89
54.00
100
94
59.90
105
97
66.00
115
107
79.20
120
112
86.20
130
122
101.20
140
132
117.30
150
142
134.70
160
152
153.30
170
162
173.00
180
172
194.00
200
192
239.40
220
208
289.70
230
218
316.70
250
238
374.10
260
248
404.60
280
268
469.00
310
296
574.90
320
306
600.60
340
326
678.00
360
346
775.40
380
366
863.90
400
386
957.20

Chemical Composition

Element Symbol Nominal %
Carbon C 3.35
Manganese Mn 0.45
Silicon Si 2.60
Nickel Ni 0.08
Chromium Cr 0.08
Molybdenum Mo 0.01
Phosphorus P 0.10
Sulfur S 0.08
Magnesium Mg 0.01
Copper Cu 0.30
Iron Fe Balance

Mechanical Properties

Metric Values Imperial Values
Tensile Strength Min 155 N/mm² 23000 psi
Yield Strength Min ≥ 250 N/mm² ≥ 36259 psi
Elongation Min 1% 1%
Hardness Min 170 BHN 170 BHN

Comparative Specifications

EN-GJL-250

DIN1691 GG25

BS1452 Grade 250

HT250

ASTM A48 Class 35

ISO185 Class 250

Resources

Data Sheet

Kormax 4E Cast Iron Data Sheet

PDF (52 KB)

https://www.kormax.com/wp-content/uploads/2022/11/Kormax-4E-Cast-Iron-Material-Data-Sheet-Updated-20_10.pdf

Resource

Engineering Metal Bar Manufacturing Methods

PDF (298 KB)

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Quality Management

Quality materials, delivered to standard.

Kormax is ISO certified for ISO 9001, ISO 14001, and ISO 45001.
All Kormax products come with batch certifications.

Why Choose Us

As a fourth-generation family-owned business, Kormax brings over 75 years of Foundry and Engineering Metals experience to your project.

Kormax operates in various sectors across the world, utilising our leading engineering, manufacturing, and global distribution capabilities to offer world-class solutions for engineers.

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Quality Management

ISO Certified for ISO 9001, ISO 14401 and ISO 45501 ensures quality systems are in place

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With a wide supplier network, Kormax can balancing quality and value

Related Products

3D Ductile Cast Iron

3D Cast Iron is a ductile iron that has a stock grade of 3D and is otherwise known as spheroidal graphite or nodular iron. The material is high strength ductile and more readily machined than other styles of cast iron. Its properties include being highly elastic and resistant to impact and is suitable for applications involving thermal and mechanical shock. 3D Ductile Iron is also the preferred choice for making hydraulic cylinder components.