Cast Iron Bars

Continuous casting was originally developed in Europe after World War II as an alternative method of producing cast iron bar stock without patterns and conventional molding methods.

A water-cooled graphite die which is mounted onto a holding crucible, is machined to form the shape of the bar. As the bar is pulled horizontally from the crucible, the ferrostatic head pressure feeds the molten iron core, producing a fine-grained cast iron.

The core is still molten iron while the out skin goes to solid when it exits the die. The entire bar cools in air until it is notched and broken off in standard lengths. The rim has a finer graphite structure in a matrix which is more ferritic than that in the center.

The most notable characteristic of continuous cast iron is its fine-grained, dense, as-cast microstructure. Since the bar is pulled from the bottom of the holding crucible, dross, slag and other impurities float to the top, away from the opening of the die.

 

Product Advantages

››  Corrosion Resistance

››  Surface finish

››  Fatigue Strength

››  Thermal Conductivity

››  Hardness

››  Vibration Damping

››  Heat Treat Response

››  Wear Resistance

››  Machinability

››  Weight Reduction

››  Reduced Scrap

 

 

CAST IRON BAR, MATERIAL GRADE

 

CAST IRON BAR 200

Mechanical

properties

SIZE(mm)

 

Tensile Strength

Anticipated Values

min (N/MM²)

>

30

50

200

50

100

180

100

200

160

200

310

Negotiation

Reference EN-1561-2011

 

Hardness range:

HB120-200 Result from R/2.

There is difference from core to edge.

Chemical composition

C

Si

Mn

P

S

3.1-3.6%

2.2-3.2%

0.6-0.9%

≤0.10%

≤0.08%

Chemical composition only for reference

Note:

Mechanical properties is gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

 

CAST IRON BAR 250

Mechanical properties

SIZE(mm)

Tensile Strength

Anticipated Values

min (N/MM²)

>

30

50

250

50

100

220

100

200

200

200

310

Negotiation

Reference EN-1561-2011

 

Hardness range:

HB160-240 Result from R/2.
There is difference from core to edge.

Chemical composition

C

Si

Mn

P

S

3.0-3.6%

2.2-3.2%

0.5-0.8%

≤0.10%

≤0.08%

Chemical composition only for reference

Note:

Mechanical properties is gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

 

CAST IRON BAR 300

Mechanical properties

SIZE(mm)

Tensile Strength

Anticipated Values

min (N/MM²)

>

30

50

300

50

100

260

100

200

240

200

310

Negotiation

Reference EN-1561-2011

 

Hardness range:

HB190-260 Result from R/2.
There is difference from core to edge.

Chemical composition

C

Si

Mn

P

S

2.9-3.5%

2.2-3.2%

0.8-1.2%

≤0.10%

≤0.08%

Chemical composition only for reference

Note:

Mechanical properties is gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

 

 

CAST IRON BAR 400-15

Mechanical properties

Size(mm)

Anticipated Values

Tensile Strength min(N/MM²)

Elongation (%) min

0.2% Yield Strength Min. (N/MM²)

Hardness(HB)

30<t≤60

370

11

240

135-180

60<t≤200

350

8

230

200<t≤400

Negotiation

Reference EN1563-2011

Microstructure

Type &nodular graphite.
Casted: Matrix is ferrite with less 20% pearlite.
With heat treatment: Matrix is 100% ferrite.
Chill carbides is less than 3%.

Chemical composition

C

Si

Mn

P

S

3.4-3.9%

2.3-3.1%

≤0.07%

≤0.10%

≤0.02%

Chemical composition only for reference

Note:

Mechanical properties is gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

Heat treatment if needed, please kingly inform.

 

 

CAST IRON BAR 450-12

Mechanical properties

Size(mm)

Anticipated Values

Tensile Strength min(N/MM²)

Elongation (%) min

0.2% Yield Strength Min. (N/MM²)

Hardness(HB)

30<t≤60

420

10

260

160-210

60<t≤200

400

8

240

200<t≤400

Negotiation

Microstructure

Type &nodular graphite.
Casted: Matrix is ferrite with less 10% pearlite.
With heat treatment: Matrix is 100% ferrite.
Chill carbides is less than 3%.

Chemical composition

C

Si

Mn

P

S

3.2-3.7%

2.4-3.1%

≤0.4%

≤0.07%

≤0.02%

Chemical composition only for reference

Note:

Mechanical properties is gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

Heat treatment if needed, please kingly inform.

 

 

CAST IRON BAR 500-7

Mechanical properties

Size(mm)

Anticipated Values

Tensile Strength min(N/MM²)

Elongation (%) min

0.2% Yield Strength Min. (N/MM²)

Hardness(HB)

30<t≤60

450

5

280

170-230

60<t≤200

400

3

260

150-230

200<t≤400

Negotiation

Reference EN1563-2011

Microstructure

Type &nodular graphite.
Casted: Matrix is ferrite with less 50% pearlite.
Chill carbides is less than 3%.

Chemical composition

C

Si

Mn

P

S

3.2-3.7%

2.3-3.1%

≤0.4%

≤0.07%

≤0.02%

Chemical composition only for reference

Note:

The Mechanical properties are gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

 

 

CAST IRON BAR 600-3

Mechanical properties

Size(mm)

Anticipated Values

Tensile Strength min(N/MM²)

Elongation (%) min

0.2% Yield Strength Min. (N/MM²)

Hardness(HB)

30<t≤60

550

2

340

190-270

60<t≤200

500

1

320

200<t≤400

Negotiation

Reference EN1563-2011

Microstructure

Type &nodular graphite.
Casted: Matrix is ferrite with less 50% pearlite.
Chill carbides is less than 3%.

Chemical composition

C

Si

Mn

P

S

3.2-3.7%

2.3-3.2%

0.3-0.8%

<0.08%

<0.03%

Chemical composition only for reference

Note:

Mechanical properties is gotten from test bar.

Test bar is taken from iron bar itself, in the middle of radius of iron bar.

 

CAST IRON BAR, REFERENCE FOR PURCHASING

 

STANDARD

 

GRADE

RELEVANT STANDARD

Cast Bar 200

ISO 200

EN-GJL-200C

ASTM A48 CLASS 30

Cast Bar 250

ISO 250

EN-GJL-250C

ASTM A48 CLASS 35

Cast Bar 300

ISO 300

EN-GJL-300C

ASTM A48 CLASS 45

Cast Bar 400-15

ISO 400-15

EN-GJS-400-15C

Cast Bar 450-12

ISO 450-12

EN-GJS-450-12C

ASTM A536 CLASS 65-45-12

Cast Bar 500-7

ISO 500-7

EN-GJS-500-7C

ASTM A536 CLASS 80-55-06

Cast Bar 600-3

ISO 600-3

EN-GJS-600-3C

ASTM A536 CLASS 80-60-03

 

BASE SIZES

 
SOLID BAR

 

Grey Iron

Shape

Dimension (mm)

Round bar

From dia. 30mm up to dia.310mm

Square bar

Side length from 40mm up to 200mm

Rectangular bar

Side length from 40mm up to 200mm

 

Ductile Iron

Shape

Dimension (mm)

Round bar

From dia. 40mm up to dia.400mm

Square bar

Side length from 40mm up to 200mm

Rectangular bar

Side length from 40mm up to 200mm

 

PIPE

 

Outer dia. 310mm
Inner dia. 65mm
Wall thickness: 20-50mm

 

SPECIAL SHAPES

 

TOLERANCE ALLOWANCE DEFLECTION

 

Shape

Dimension(mm)

Grey Iron Bar

Ductile Iron Bar

Dimension Tolerance (mm)

S.M.A. (mm)

Deflection (mm)

Dimension Tolerance (mm)

S.M.A. (mm)

Deflection (mm)

Round

φ30--φ50(grey iron) φ40--φ50(ductile iron)

0+1.5

≤1.5

3

0+2.0

≤1.5

5

φ55--φ100

0+2.0

≤2.0

2

0+2.5

≤2.0

4

φ105--φ150

0+3.0

≤3.0

2

0+3.0

≤3.0

3

φ155--φ210

0+4.0

≤4.0

2

0+4.0

≤4.0

3

φ215--φ300

0+5.0

≤5.0

2

0+5.0

≤5.0

3

φ310--φ400

0+6.0

≤6.0

2

0+6.0

≤6.0

4

Square & Rectangular

□40--□50

0+2.0

≤2.0

4

0+2.5

≤2.5

5

□55--□100

0+3.0

≤3.0

3

0+3.0

≤3.5

4

□105--□150

0+4.0

≤4.0

3

-1.0+4.0

≤4.5

3

□155--□200

-1.0+5.0

≤5.0

3

-2.0+5.0

≤5.0

3

 

Note:

1.    "S. M. A." means " Surface Machining Allowance". That is the allowance of removing the surface irregular part.
2. Before ordering, please consider S.M.A. That can be understood as" Removing Defect Deep". Especially for Square and Rectangular iron bars, if final products are right angles, please consider Chamfer angle extra. It is not included in the S.M.A.
Welcome to give us final product's dimension for comments.

 

CAST IRON BAR, APPLICATION

 

Oil and air pressure equipment

Valves

Stack valve, Modular valves, Relief valve, Flow control valve, Solenoid valve, Sub plate, Manifold

Cylinders

Piston , Head cover, Rod cover , Cushion ring

Others

Pulley and Boss for blower, Rotor, Impeller Liner Flange for compressor

Machine tools and general industrial machineries

 

Metal machine tools

Stack valve, Modular valves, Relief valve, Flow control valve, Solenoid valve, Sub plate, Manifold

Injection molding machines

Valve, Manifold, Cylinder, Mounting plate at fixed side, Mounting plate at moving side, Ejector plate, Spacer block

Civil engineering and construction machines

Valve, Cylinder piston, Manifold

Printing machines

Ink mixing roller, Ink rail, Guide, Gear

Spinning machines

Bearing case,Gear, Weight, Rail, Top roller, Guide tube, Bearing, Cross slide, Bearing holder, Slide base, Bushing, Cam of sewing machine

Agricultural machines

Piston head, Head cover, Pulley for tractor, Pulley Bushing for combine

Others

Parts for Package of paper, Food processing, wood-working machine

 

Automobiles, transportation equipment

Automobiles

 

Shock absorber, Valve guide, Mechanical seal, Collar, Bushing, Weight, Speed meter gear sleeve, Mechanical seal Spacer for cooler

Cranes and Ships

Manifold, Cylinder, Piston, Valve guide, Engine, Engineering valve stem bushing, cylinder block

Cranes

Sheave, Collar, Bushing, Wheel

Others

Winch drum, Elevator hook, Weight, Conveyor roller

 

Electrical equipment and tools

Compressor roller for rotary air conditioner, Spider, Slider, Cross slide pin, Facsimile vacuum pump, Motor gear, Rotor for cooler, Disc brake of generator

 

Metal molds

For glass, for aluminum die casting, for plastics, for grinding wheel, for pen points, for pressure casting, for lens polishing, for analyzing pieces for shell molding and cold box process

 

Pumps

Gear of gear-pump, Rotor of screw pump, Shaft Seal, Rotor, Flange, Flow control, Check valve, Yoke sleeve, valve guide for chemical pump

 

General universal parts

 

 

Gear, Pulley, Sheave, Bearing, Shaft, Bushing, Collar, Cam, Coupling, Flange, Boss, Weight, Casing, Pin rail, Cases and covers, Seal, Rotor, Base, Ring, Roller, Nut, Plate, Plug, Block, Score, jig and tools