Tabarestan Steel Foundry

In order to fulfill our customers' demands, T.S.F produces casting parts according to its brand and specification in carbon and low alloy, heat resistant, manganese and high chromium cast steels and cast irons. Additionally, we can produce parts in other standard alloys to meet the customers' specific requirements.

High chromium cast steels

Due to their relatively suitable wear resistance and toughness, high chromium cast steels are used widely in grinding processes. Considering the application, this group of martensitic steels has filled the gap between manganese steels and high chromium cast irons with its suitable impact and high abrasion resistance.

Alternatively, high chromium cast irons are universally applicable to conditions where excessive wear and moderate impact are present.
This group of white cast irons will provide superior wear resistance because of their martensitic matrix, which is enriched with carbides. For conditions that marginal impact and superb abrasion resistance is essential, nickel chromium (Nihar4) white cast iron will be appropriate.

Symbol

Basic Chemical Composition

%Si

%Mn

%Cr

%Mo

%Ni

TWRC10

0.4

(Max)

0.7

(Max)

1.1

(Max)

5.0

7.0

TWRC11

0.4

(Max)

0.7

(Max)

1.1

(Max)

6.0

8.0

TWRC12

0.3

(Max)

0.7

(Max)

0.9

(Max)

10.0

13.0

TWRCOA

1.1

1.4

0.8

(Max)

0.8

(Max)

11.00

14.00

TWRCO

1.4

1.6

0.8

(Max)

0.8

(Max)

11.0

14.0

TWRC2

2.3

2.9

0.8

(Max)

1.5

(Max)

18.0

20.0

0.0

2.0

0.0

2.0

TWRC5

2.3

2.9

1.0

(Max)

1.5

(Max)

25.0

28.0

0.0

2.0

0.0

2.0

TWRC6

3.0

3.5

1.0

(Max)

1.5

(Max)

23.5

28.5

0.0

2.0

0.0

2.0

TWRN4

2.5

3.5

2.2

(Max)

0.8

(Max)

7.0

9.0

4.5

6.5

Manganese Steel

Standard manganese steel is suitable for applications where gouging abrasion is predominant. Furthermore, it is recommended for environments where gouging and grinding abrasions occur together. Manganese steel is characterized by high strength; toughness and excellent work harden ability by impact and gouging. Manganese steel also has excellent resistance in metal to metal wear.

High manganese steel can provide a higher life time in special environments and reduce overhaul periods.

Symbol

Basic Chemical Composition

%Si

%Mn

%Cr

%Mo

TWR2(A)

1.15

1.35

0.8

(Max)

12.0

14.0

2.5

(Max)

(0.6)

TWR3

1.2

1.4

0.8

(Max)

16.0

18.0

2.0

(Max)

TWR4

1.3

1.5

1.1

(Max)

18.0

21.0

3.0

(Max)

Heat resistant steel

Heat resistant steel castings are widely used for applications involving service temperatures exceeding 650°C. Mechanical strength at the elevated temperatures and type of aggressive environment are the main criteria by which these materials are selected.
Heat resistant steels maintain their mechanical strength and exhibit a suitable corrosion resistance over long periods of time. Iron-chromium-nickel heat resistant alloys have an austenitic matrix. These alloys show superb strength and ductility at elevated temperatures. In addition, nickel-chromium-niobium (THR50/50) alloy will give improved resistance to attack by ash products of low grade fuel oils.
Moreover, it has superior creep rupture behavior in comparison to other heat resistant steels.

Symbol

Basic Chemical Composition

%Si

%Mn

%Cr

%Ni

THR5

0.3

0.5

1.0

2.0

0.5

1.5

23.5

27.0

3.0

5.0

THR7

0.3

0.5

1.0

2.0

0.5

1.5

23.5

27.0

11.0

14.0

THR8

0.3

0.5

1.0

2.0

0.5

1.5

23.5

27.0

18.0

21.0

THR50/50

0.1

(Max)

0.5

(Max)

0.3

(Max)

Bal

Standard	Name	Material Number
Din En 10295	GX30CrSi7	1.4710
	GX40CrSi24	1.1745
	GX40CrSi28	1.4776
	GX40CrNiSi22-10	1.4826
	GX40CrNiSiNb24-24	1.4855
	GX40NiCrSi38-19	1.4865
	GX40NiCrSiNb38-19	1.4849
	GX40NiCrSi35-26	1.4857
	GX40NiCrSiNb35-26	1.4852
	GX40CrNiSi27-4	1.4823
	GX25CrNiSi18-9	1.4825
	GX40CrNiSi25-12	1.4837
	GX40CrNiSi25-20	1.4848
	GX40NiCrNb45-35	1.4889
	G-CoCr28	2.4778

Standard	Type	Grade
ASTM A297	19Cr-9Ni	HF
	25Cr-12Ni	HH
	28Cr-15Ni	HI
	28Cr	HC
	28Cr-5Ni	HD
	26Cr-35Ni	HP

Standard	Type	Grade
ASTM A 743	25Cr-12Ni	CH20
	25Cr-20Ni	CK20
	12Cr	CA15

Standard	Grade
ASTM A 351	CF8
	CF8M
	HK30
	HK40
	CF8
	CF8M

Standard	Grade
ASTM A560	50Cr-50Ni-Nb
ASTM A447	Type I & II
ASTM A 351	CF8
	CF8M
	HK30
	HK40
	CF8
	CF8M

Carbon steels

Carbon steels are those with no deliberate alloy additions. They are mainly used in general engineering, constructional and pressure applications. Low alloy steels have superior mechanical properties in comparison to plain carbon steels due to their additional alloying elements such as chromium, molybdenum and nickel. Furthermore, suitable alloy content will provide improved wear and corrosion resistance.

Symbol

Basic Chemical Composition

%Si

%Mn

%Cr

%Mo

%Ni

TG2

0.25

(Max)

0.6

(Max)

1.0

1.2

0.3

(max)

TG4

0.45

(Max)

0.6

(Max)

1.1

1.2

0.3

(Max)

TG6

0.45

(Max)

0.6

(Max)

1.1

(Max)

0.8

1.3

0.2

0.3

TWR21

0.55

(Max)

0.8

(Max)

1.5

(Max)

0.8

1.3

0.4

0.8

1.8

2.2

TWR24

0.8

(Max)

0.8

(Max)

1.3

(Max)

1.5

2.5

0.3

0.5

TWR25

0.95

(Max)

0.8

(Max)

1.3

(Max)

1.5

2.5

0.3

0.5