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 Ⅰ&Ⅱ 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 Ⅰ&Ⅱ 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 Ⅰ&Ⅱ 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 Ⅰ&Ⅱ 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