Continuous Casting Gray Iron & Ductile Iron Bar

We are Stockholder & Distributors of Continuous Casting Iron Bars, Dense Iron Bars, Dense Bars, Gray Iron Bar, Grey Iron Bar, Ductile Iron Bar, SG Iron Bar, S.G Iron Bar, Ductile Iron (S.G) Bars, Heat Resistant Iron Casting, Grey Iron Casting, Malleable Iron Casting with High Intensity & High Density

Continuous Cast Gray and Ductile Iron
Alternative to Steel and Sand Cast Iron

Continuous cast gray and ductile iron is the most metallurgically superior steel alternative on the market. Fluid power and bearing manufacturing industries are switching to our continuous cast iron because it is much more cost-effective than any other steel alternative.
The continuous cast process ensures the iron solidifies at a more uniform rate, so the iron is more durable and reliable than traditional sand cast iron. Bar is manufactured with less scrap and reduced machining, so it is not only stronger, but also costs less than sand cast iron because there are no tooling charges.
Continuous cast iron is used for a wide variety of applications including:
Hydraulics: Pistons, Glands, Manifolds
Machine tool: Gears, Bushing, Pulleys,
Patterns, Mould, Mounting Plates, Pins
Brake Disc, Bearing Caps, Valve Guides
Glass Moulds: Neck Rings, Plungers, Cores
Dies, Rollers, Sleeves, Spacers

Gray and Ductile Iron Differences
Some metallurgists will say the difference between gray and ductile iron is that ductile iron is an “upgraded” version of gray iron. But, the answer is not that simple.
Continuous cast gray iron is recommended for straight wear applications in the hydraulics industry due to its lower tensile strength, higher thermal conductivity and higher damping capacity. Gray iron is an ideal metal for bearings and bushings.

Sand Casting vs. Continuous Casting
Sand casting has been one of the most popular and simplest types of casting for centuries. It relies on silica-based materials, typically synthetic or naturally-bonded sand to form a mold. Sand casting is inexpensive and can be used for both ferrous and non-ferrous metals. However, sand casting tends to yield a lower degree of accuracy and a rougher surface finish when compared to continuous casting.
Continuous casting is a refined process for continuous, large volume production. Continuous casting is also known as strand casting, and produces high quality products in a variety of shapes and sizes including square bars, tubes, hexagonal profiles and slabs with varying thickness levels.

ASTM A536 – 84(2014)
Standard Specification for Ductile Iron Castings
This specification covers ductile iron castings, also known as spheroidal or nodular iron, that is described as cast iron with the graphite substantially spheroidal in shape and essentially free of other forms of graphite. Appropriate heat treatment shall be identified according to grades, as follows: a full ferritizing anneal for 60-40-18; a quench and temper, or normalize and temper, or isothermal heat treatment for 100-70-03 and 120-90-02; and as-cast for 65-45-12 and 80-55-06. Castings shall be tested and conform to specified tensile requirements such as tensile strength, yield strength, and elongation. When indicated in the contract or purchase order, castings shall also adhere to special requirements like hardness, chemical composition, microstructure, pressure tightness, radiographic soundness, magnetic particle inspection dimensions, and surface finish.
This specification covers castings made of ductile iron, also known as spheroidal or nodular iron, that is described as cast iron with the graphite substantially spheroidal in shape and essentially free of other forms of graphite, as defined in Terminology A644.
No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of castings and those of a test specimen cast from the same iron (see Appendix X1).

ASTM A48 / A48M – 03(2012)
Standard Specification for Gray Iron Castings
This specification covers gray iron castings intended for general engineering use where tensile strength is a major consideration. Castings are classified on the basis of the tensile strength of the iron in separately cast test bars. The surface of the casting shall be free of adhering sand, scale, cracks, and hot tears, as determined by visual examination. The test bars are designated into S, A, B, and C categories, according to the thickness of its controlling wall section. The casting shall be subjected to a tension test to determine its tensile strength.
This specification covers gray iron castings intended for general engineering use where tensile strength is a major consideration. Castings are classified on the basis of the tensile strength of the iron in separately cast test bars.
This specification subordinates chemical composition to tensile strength.
Castings produced to this specification are graded on the basis of minimum tensile strength obtained in special test coupons designed to standardize cooling rate. The tensile strength developed in certain casting sections may vary from test coupon values

Continuous Casting Ductile Iron Round Bar, Square Bar, Rectangle Bar, Semi Circle Bar

Continuous Casting Ductile Iron Shaped Cross-Section Bar, Tubes, Custom Size Bar

Continuous Casting S.G Iron Round Bar, Square Bar, Rectangle Bar, Semi Circle Bar

Continuous Casting S.G Iron Shaped Cross-Section Bar, Tubes, Custom Size Bar

Continuous Casting SG Iron Round Bar, Square Bar, Rectangle Bar, Semi Circle Bar

Continuous Casting SG Iron Shaped Cross-Section Bar, Tubes, Custom Size Bar

Continuous Casting Dense Iron Round Bar, Square Bar, Rectangle Bar, Semi Circle Bar

Continuous Casting Dense Iron Shaped Cross-Section Bar, Tubes, Custom Size Bar

Ductile Iron Bar Grade SG370, SG 370, SG400, SG 400, SG500, SG 500, SG600, SG600

Ductile Iron Grade SG 900/2, SG 800/2, SG 700/2, SG 600/3, SG 500/7, SG 450/10

Ductile Iron Grade SG 400/15, SG 400/18, SG 350/22, SG400, SG350, SG450, SG500, SG600

Continuous Casting Gray / Grey Iron Round Bar, Square Bar, Rectangle Bar, Semi Circle Bar

Continuous Casting Gray / Grey Iron Shaped Cross-Section Bar, Tubes, Custom Size Bar

Gray Iron Bar Grade FG200, FG 200, FG260, FG 260, FG300, FG 300

Gray Iron Bar Grade HT100, HT150, HT200, HT250, HT300, HT350

Continuous Casting Heat Resistant Iron Round Bar, Square Bar, Rectangle Bar, Semi Circle Bar

Continuous Casting Heat Resistant Iron Shaped Cross-Section Bar, Tubes, Custom Size Bar

Heat Resistant Cast Iron Bar Grade RTCr, RTCr2, RTCR16, RTSi5, RTQSi4, RQTSi4Mo, RQTSi5

Heat Resistant Cast Iron Bar Grade RQTAL4Si4, RQTAL22, RQTAL15Si5, RQTAL22

GB/T 9437, GB/T 9439, GB/T 9440, GB/T1348, GB/T 4403, GB/T 9440, GB/T 8263, GB/T 8491

SPECIFICATION FOR CAST (GREY) IRON
Country	Specification	Designation	150	180	200	220	250	260	300	350
India	IS 210 1978	FG	150	—	200	—	250	—	300	350
United Kingdom	BS 1452 1990	Grade	150	180	200	220	250	—	300	350
USA	ANS/ASTM A48-83	Grade	20A	25A	30A	—	35A	40A	45A	50A
Germany	DIN 1691 1985	GG	15	—	20	—	25	—	30	35
France	NFA 32-101-1987	FGL	150	—	200	—	250	—	300	350
Italy	UNI 5007 1969	G	15	—	20	—	25	—	30	35
Japan	JIS G5501 1981	FC	150	—	200	—	250	—	300	250
Russia	GOST 1412 1979	Sch	15	18	20	—	25	—	30	35
International	ISO 185-1988	Grade	150	—	200	—	250	—	300	350
		CLASS	2	—	3	—	4	—	5	6
Hardness range BHN			136-167	159-194	180-222	202-247	227-278
Total carbon %			3.4-3.6	3.2-3.5	3.15-3.30	2.9-3.1	3.1 max
silicon %			2.2-2.5	2.0-2.5	1.6-1.9	1.8-2.0	1.4-1.6
Mangenese %			0.5-0.7	0.6-0.8	0.6-0.8	0.7-0.9	0.7-0.9
Sulphur %			0.15	0.15	0.12 max	0.10 max	0.10 max
Phosphorous %			0.9-1.2	0.4 max	0.3 max	0.10 max	0.10 max
Molybdenum %										0.3-0.5
Cu or Ni %									0.3-0.5	1.0-1.5

SPECIFICATION FOR DUCTILE( NODULAR / SPHEROIDAL IRON )
Country	Specification	Designation	Minimum Tensile Strength / Elongation
India		SG	800/2	700/2	600/3	500/7	420/12	400/18	350/22
United Kingdom	BS2789:1985		800/2	700/2	600/3	500/7	420/12	400/18	350/22
USA	ASTM A536-84:1976		120-90-02	100-70-03	80-60-03	80-55-06	65-45-12	60-42-10	60-40-18
German	Din 1693-1973	GGG	800/2	700/2	600/3	500/7	400/15	400/18	350/22
France	NF A 32-201:1976	FGS	800/2	700/2	600/3	500/7	400/12	370/17	—
Italy	UNI 4544:1979	GS	800/2	700/2	600/3	500/7	400/12	370/17	—
Japan	JIS G5502:1982	FCD	(80)758/2	(70)686/2	(60)588/3	(50)490/7	(40)392/12	(37)363/17	—
International	ISO 1083:1976		800/2	700/2	600/3	500/7	400/12	370/17
			(827/2)	(689/3)	(555/3)	(552/6)	(448/12)	(415/10)	(414/18)
Hardness BHN			248-352	229-302	192-269	170-241	201 max	179 max	160 max
Structure			P or T	P	P & F	F & P	F	F	F
Equivalence kgf/mm2			81.6	71.4	61.2	51	42.8	40.8	35.7
			TC	Si	Mn (max)	TC	Si	Mn (max)	TC	Si	Mn (max)	Tc	Si	Mn (max)
			3.6-3.8	2.6-2.8	0.5	3.6-3.8	2.6-2.8	0.3	3.6-3.8	2.6-2.8	0.2	3.6-3.8	2.6-2.8	0.1
			3.5-3.6	2.2-2.5	0.6	3.5-3.6	2.2-2.5	0.35	3.5-3.6	2.2-2.4	0.25	3.5-3.6	2.2-2.4	0.15
			3.5-3.6	2.1-2.3	0.7	3.5-3.6	2.1-2.4	0.4	3.5-3.6	2.1-2.4	0.3	3.5-3.6	2.2-2.4
			3.4-3.5	1.9-2.1	0.8	3.4-3.5	2.0-2.2	0.5	3.4-3.5	2.0-2.2	0.35	3.4-3.5	1.8-2.0
			3.4-3.5	1.8-2.0	0.8	3.4-3.5	1.8-2.0	0.6	3.4-3.5	1.8-2.0		3.4-3.5	1.8-2.0

Inspection & Approval Certificates : C/W Certificate (Calibration Works Certificate) EN 10204 3.1 / DIN 50049 3.1 / ISO 10474 3.1 Mill Test Certificate, NACE MR-0103 / NACE MR-0175 / ISO 15156, CE Marked, European Pressure Equipment Directive PED-97/23/EC, AD-2000-WO, ASME Boiler & Pressure Vessel Code Sec.II Part A Ed. 2008, API 6A (American Petroleum Institute), with 3.2 certificate duly Certified & Approved by LRS (Lloyd’s Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas), ABS (American Bureau of Shipping), SGS, TUV, RINA, IRS, NORSOK Approved Standard M-630, M-650 Rev.3

If you have any requirement of above items, please feel free to contact us

Regards,

CONTACT PERSON :

MUKESH SHAH
Director
Mobile No. 0091 – 9820292499
Email – marketing@rolexmetals.com

ROLEX METAL DISTRIBUTORS
( A METAL & STEEL Company )
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