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SOURCE CASTINGS FROM ASIA

Now you can save by sourcing castings from Asia through Quality Castings

foundryThere is no question that Australia is a high cost manufacturing country

Australias commodity based economy, high currency plus high labour and energy costs mean higher prices.

Reduce costs and remain competitive in the global Marketplace by sourcing castings from Asia

Quality Castings experienced personnel can supply high quality lower cost castings from foundries in Asia under direct management to ensure quality standards are maintained.

Through our foundry connections and knowledge we can arrange your supply of cast and even machined products at competitive prices.

Call Quality Castings to discuss your requirements.

 

July 2015

Quality Castings delivered two sets of valves and bonnets in AB2 weighing 2.5 tonnes each to Emerson Process in Malaysia. The valves are destined for use in an FPSO vessel for oil production.

Naturally for the oil industry, the valves are subject to a high level of NDT including Radiography and LP Testing.

Nickel Aluminium Bronze grade AB2 is a preferred alloy in seawater environments for its excellent combination of corrosion resistance, high strength and wear resistance.

Body Casting1

JULY 2014

photo

Quality Castings at Coburg recently cast a set of four half flywheels, each half weighing 5000kg. The castings were heat treated and machined in house prior to external finishing and joining to make a 3.5m diameter wheel weighing 10 tonnes for a crusher plant at Mt Isa.

MARCH 2014

valve body

Quality Castings Sydney foundry recently cast five Steel 12” valve bodies for use in the gas industry. Finished weight of each casting was 2560 kg.

 

DUPLEX STAINLESS STEELS

Duplex stainless steels comprise a mixture of ferrite and austenite, producing a material with many of the advantages offered by both structures. They generally have comparable or better corrosion resistance to austenitic steels, with more than twice the yield strength, and are especially resistant to pitting corrosion and stress corrosion cracking in chloride environments.

Duplex stainless steels have for years been providing excellent service in seawater on offshore platforms and in a wide variety of other chloride containing environments.

The pitting resistance equivalent number (PREN) is an empirical guide to the grading of materials for resistance to seawater. Duplex stainless steel has been designed to exceed the commonly specified PREN of 40 and provide, for example, castings suitable for pumps and valves on offshore oil and gas platforms.

 

DUPLEX GRADES

R29-1A A744-CD4MCu, A890-1A
R29-4A A890-4A
R29-5A A890-5A

AUSTENITIC STAINLESS STEELS

Austenitic stainless steels are very tough and essentially non-magnetic materials that are alloyed to produce resistance to corrosion in a variety of environments.

The basic 18% chromium/10% nickel grade (R31) has a very good corrosion resistance in many applications. This alloy can be refined (R31LC) or alloyed with molybdenum (R33,R34) for enhanced corrosion resistance or modified for improved welding (R30) and machining (R32) characteristics. Increasing nickel content and alloying with molybdenum and copper results in greatly improved corrosion resistance in more aggressive environments such as hot sulphuric acid (R36,R37).

 

 

AUSTENITIC STAINLESS GRADES

R30 AS 2074-H5C, A351-CF8C
R31 AS 2074-H5A, A351-CF8
R31LC A351-CF3
R32 AS 2074-H5AM,BM, A743-CF16F
R33 AS 2074-H6B, A351-CF8M
R33 AS 2074-H6B, A351-CF8M
R33LC A351-CF3M
R33Nb AS 2074-H6C
R34 AS 2074-H6A, A351-CG8M
R36 AS 2074-H9A, A744-CN7M
R37 A744-CN7MS

PRECIPITATION HARDENING

Strength and corrosion resistance superior to many martensitic stainless steel alloys is achieved by precipitation hardening a low carbon martensitic or semi-martensitic stainless steel. This is accomplished by accurate alloying and a low temperature heat treatment, allowing machined parts to be age hardened with only minimal distortion and scaling. Depending upon the particular material composition and heat treatment programme, precipitation hardening stainless steels can be supplied with appropriate hardness differentials to avoid galling and seizing during metal to metal contact

 

 

PRECIPITATION HARDENING GRADES

R27 AS 2074-H7B, A447-CB7Cu 2
R28 AS 2074-H7A, A447-CB7Cu 1

MARTENSITIC STAINLESS STEELS

A protective passive oxide film can develop on steels with chromium contents above 12%, imparting to these steels “stainless” characteristics. By maintaining a suitable composition balance between carbon and chromium, a series of high strength stainless steels are produced (R23-R23XHC).

Components cast in these alloys meet specific hardness and wear resistance criteria through closely controlled heat treatment practices. Material toughness and versatility are enhanced by additions of nickel and molybdenum (R24).

 

 

MARTENSITIC GRADES

R23 AS 2074-H3A,B, A743 CA-15
R23HC A743-CA40
R23XHC A743-CA40
R24 AS 2074-H3C, A743-CA6NM
R25VHC AISI TYPE 440C

CAST IRONS

Alloys of iron, carbon and silicon where carbon is present in excess of the amount which can be retained in solid solution are termed cast irons The common engineering grades contain Carbon in the form of flake graphite, but this can be modified with additions to a spheroidal shape. This imparts major improvements in strength and ductility and the alloys are then called SG, Nodular or Ductile irons (N1-N5).. Additions of nickel and chromium change the structure to produce the wear resisting alloy Ni Hard (Q51-Q52), while higher amounts of these elements yield the excellent corrosion resistance of the Ni Resist Family (R10-R13).

CAST IRON

V1 ALLOYED CAST IRON, A319 Class I
V2 ALLOYED CAST IRON, A319 Class II
V3 ALLOYED CAST IRON, A319 Class III
V10 CAST IRON, AS 1830-T150
V12 CAST IRON, AS 1830-T180
V14 CAST IRON, AS 1830-T220
V17 CAST IRON, AS 1830-T260
V20 CAST IRON, AS 1830-T300
V23 CAST IRON, AS 1830-T350
V26 CAST IRON, AS 1830-T400
W88 A494-CY5SnBiM
MART Keystone Alloy ‘N’

 

DUCTILE IRON

N1 S.G. IRON, AS 1831-370-17
N2 S.G. IRON, AS 1831-400-12
N3 S.G. IRON, AS 1831-500-7
N4 S.G. IRON, AS 1831-600-3
N5 S.G. IRON, AS 1831-700-2
N6 S.G. IRON, AS 1831-800-2

 

WHITE IRON

Q14 15%Cr IRON
Q15 AS 2027-Cr27
Q16 AS 2027-CrMo 15 3
V51 MACHINABLE NIHARD
V52 NIHARD 1, A352 Cl1 Type A
V54 NIHARD 4, A352 Cl1 Type D

 

NI RESIST

R10 A436 Type 1
R11 A436 Type 2
R11 SG A436 Type D2
R12 A436 Type 3
R12 SG A436 Type D3

CARBON AND LOW ALLOY STEELS

From a low carbon iron for electro-magnetic applications (S1), our range of low carbon steels (S3, S4) can be produced to meet specific strength and hardness requirements. Higher hardenability, wear resistance and sub-zero impact criteria are achieved through minor alloying additions and precise heat treatment control (R60-R67).

An additional series of steels resistant to high temperature creep is developed by alloying low and medium carbon steels with chromium, molybdenum, vanadium and tungsten (R68-R72). Nickel is added to many of these grades to improve sub-zero impact properties (R66).

 

MILD STEEL

S1 AS 2074-C2
S3 AS 2074C3,C4, A216 WCA,B,C.
S4 AS 2074-C5, C6

 

LOW ALLOY STEEL

R59 ASTM A915 SC8630
R60HC AS 2074-L2A,B
R63 A352-LCA,B,C
R64 A352-LC3
R66 AS 2074-L6A,B
R67 AS 2074-L1A,B
R68 AS 2074-L5A, A217-WC1
R69 AS 2074-L5B, A217-WC6
R70 AS 2074-L5C, A217-WC9