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Austenitic Iron Castings

Austenite - an overview | ScienceDirect Topics

Roy Elliott BSc, PhD, in Cast Iron Technology, 1988. Austenite primary phase formation. Austenite is the first phase to form in hypoeutectic irons. Once nucleated, austenite primary phase develops into a network by dendritic growth as the liquid cools. Austenite is a non-faceting phase and the dendrite morphology results from instability of a ...

Austenitic Gray Iron Castings - ASTM A-436 - Pacific Alloy ...

Austenitic Gray Iron Castings from Pacific Alloy Casting, Los Angeles, CA. Specification for Austenitic Gray Iron Castings ASTM A-436. Austenitic gray iron is characterized by uniformly distributed graphite flakes, some carbides, and the presence of sufficient alloy content to produce an austenitic structure.

What is Ferrite, Cementite, Pearlite , Martensite, Austenite

Iron which contains little or no carbon is called ferrite. It is very soft and ductile and is known as alpha iron by the metallurgists. Ferrite is present to some extent in a great range of steels, particularly those low in carbon content, and it is also present, in soft cast iron…

STEEL CASTINGS HANDBOOK Supplement 7 Welding of High …

2.1.3 Iron-chromium-nickel alloy types CE30, CF3, CF8, CF20, CF8C, CF3M, CF8M, CG8M, CH20 and CK20 are all austenitic in microstructure. Depending on the balance in the chemical composition among the austenite-promoting elements (nickel, carbon, manganese and nitrogen) and the ferrite-promoting elements (chromium, silicon,

JIS G 5510: Austenitic iron castings

Austenitic iron castings. You can compare properties of the 2 grades JIS G 5510 - List of grades Austenitic iron castings FCA-Ni 35 FCA-NiCr 20 2 FCA-NiCr 20 3 FCA-NiCr 30 3 FCA-NiCuCr 15 6 2 FCA-NiCuCr 15 6 3 ...

ASTM A439 Grade D2 58-30-8 Data Sheet | Penticton Foundry

Jun 14, 2017· Austenitic Ductile Iron Design Benefits 1 Austenitic ductile iron castings, also known as Ni-Resist, can be used in a wide range of applications because of the specific chemical, mechanical and physical properties. Ni-Resist is beneficial because of the following properties:

NZS/AS 1833:1986 | IRON CASTINGS - AUSTENITIC CAST IRON ...

Specifies requirements for nine grades of flake graphite austenitic iron castings and eleven grades of spheroidal or nodular graphite austenitic iron castings, in terms of chemical composition and mechanical supplementary properties. General Product Information - (Show below) - (Hide below) Published: Document Type ...

Corrosion of Cast Steels – IspatGuru

Jul 30, 2016· General corrosion of austenitic and duplex cast stainless steels. Austenitic cast stainless steel typically containing around 19 % Cr and 9 % Ni can more frequently contain some residual ferrite (3 % to 30 %) in an austenite matrix. In the solution-treated condition, this steel has excellent resistance to a wide variety of acids.

Ni-Resist Cast Iron | Ni- Hard Cast Iron | Dura-Bar

Ni-Resist Iron Overview. Dura-Bar Ni-Resist iron is commonly specified for use in corrosive atmospheres and will exhibit corrosion resistant properties somewhere between cast iron and austenitic stainless steel. The matrix is austenite with alloy carbide and contains Type VII graphite, Type A flakes, size 4-6, as defined in ASTM A247.

Physical Properties of Ductile Iron and Alternative Materials

Pressure-containing castings such as valve and pump bodies. ASTM. A536-80. 65-45-12. 65,000. 45,000. 12-Most widely used grade for normal service. Machinery castings subject to shock and fatigue loading. ASTM. A536-80. 80-50-06. 80,000. 55,000. 6-Suitable for flame and induction hardening. Crankshafts, gears and rollers. ASTM. A536-80

Standard Specification for Austenitic Gray Iron Castings

1.1 This specification covers austenitic gray iron castings that are used primarily for their resistance to heat, corrosion, and wear. Austenitic gray iron is characterized by uniformly distributed graphite flakes, some carbides, and the presence of sufficient alloy content to produce an austenitic structure.

Austenite - Wikipedia

Austenitic Gray Iron Castings from Pacific Alloy Casting, Los Angeles, CA. Specification for Austenitic Gray Iron Castings ASTM A-436. Austenitic gray iron is characterized by uniformly distributed graphite flakes, some carbides, and the presence of sufficient alloy content to produce an austenitic structure.

Metal & Alloy Guide - Pacific Alloy Casting Co., Inc ...

Austenitic Ductile Iron Castings from Pacific Alloy, Los Angeles, CA Austenitic Ductile Iron Castings – ASTM A-439 Austenitic ductile iron was developed to meet the demands of conditions that are too severe for conventional or austempered ductile irons. The high nickel content in austenitic ductile iron in conjunction with chromium in certain ...

Ductile Iron - an overview | ScienceDirect Topics

Ductile iron is also called SG iron, which is an abbreviation of spheroidal graphite iron, and nodular cast iron. Ni-Resist cast iron, austenitic spheroidal graphite cast iron, can be useful for high temperature and corrosive applications because of its high nickel content. Wear …

Austenitic Nodular Cast Iron (Ductile Ni-Resist ...

Austenitic nodular cast iron is a cast iron. It can have the highest base cost among cast irons. In addition, it can have the highest ductility and the highest embodied energy. The properties of austenitic nodular cast iron include twelve common variations. This page shows summary ranges across all …

Ductile Iron Data - Section 5

Three families of alloy Ductile Irons - austenitic (high nickel - Ni - Resist), bainitic and ferritic (high silicon-molybdenus) - have been developed either to provide special properties or to meet the demands of service conditions that are too severe for conventional or austempered Ductile Irons. ... The Iron Castings Handbook, Iron Castings ...

Austenitic Stainless Steels | Alloy Guide | MetalTek

Austenitic stainless alloys make up a family of stainless steels that are by far the most widely used of all types. Learn more about this alloy here!

AUSTENITIC DUCTILE IRON CASTINGS - Effort Foundry

Austenitic Ductile Iron Castings (SDS SC-000-039 Rev 13) Page 5 of 6 SECTION 15—REGULATORY INFORMATION USA-OSHA (Hazard Communication Standard) Reference 29 CFR 1910.1200 and 1910.1000. A finished casting is an article as defined in the OSHA Hazard Communication Standard 29CFR 1910.1200 (c).

Standard Specification for Austenitic Ductile Iron Castings

1.1 This specification covers austenitic ductile iron castings, which are used primarily for their resistance to heat, corrosion, and wear, and for other special purposes. 1.2 Austenitic ductile iron, also known as austenitic nodular iron or austenitic spheroidal iron, is characterized by having its graphite substantially in a spheroidal form ...

Standard Practice for Steel Casting, Austenitic Alloy ...

1.1 This practice covers procedures and definitions for estimating ferrite content in certain grades of austenitic iron-chromium-nickel alloy castings that have compositions balanced to create the formation of ferrite as a second phase in amounts controlled to be within specified limits.

Physico-chemical causes of the formation of chunky ...

Feb 01, 2017· 1. Introduction 1.1. Chunky graphite. Spheroidal graphite cast iron (SGI), also known as ductile iron exhibits favorable ductility over other cast irons due to nodular graphite precipitations; however, in heavy section ductile iron castings or in whole SGI castings with higher alloying content, graphite degeneration can be observed, which is known as chunky graphite (CHG).

Aufhauser - Technical Guide - Cast Iron Welding Procedures

Cast Iron is considerably less weldable than low-carbon steel. Cast iron contains much more carbon and silicon than steel, with the result that cast iron is less ductile, and is more metallurgically deformed when welded. However, there have been many successful cast iron repair welds performed in maintenance and casting reclamation applications.

Austenitic Iron Castings & NI Resist Cast Iron - Durham ...

Austenitic Castings & Ni-Resist Cast Iron Reliability. The large variety of characteristics are controlled using a range of alloying metals. The high nickel content increases the tensile strength and elongation at fracture without adversely affecting the yield strength or hardness.

Ductile Iron Data - Section 3 - Part 1

Figure 3.16, Figure 3.17 and Figure 3.18 provide further evidence of the relationships between tensile properties and pearlite and ferrite contents in Ductile Iron castings in the as-cast, fully annealed and normalized conditions respectively. These data, obtained from testing 1 inch (25 mm) keel blocks made from irons with average compositions ...

Austenitic Grey Cast Iron (Ni-Resist) :: MakeItFrom.com

Austenitic grey cast iron is a cast iron. The properties of austenitic grey cast iron include eight common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare austenitic grey cast iron to: cast irons ...

Austenitic cast iron - GIESSEREILEXIKON.COM

The properties of austenitic cast iron materials depend on the respective structure and mechanical properties suitable for the required application cases. These properties depend on the composition of the iron, the respective type and the production process applied. Figures 1 to 3 show pictures of different structures of nodular graphite cast iron.

Stainless Foundry

Ni-Resist or Ni Resist alloy grades are austenitic gray cast iron casting grades that provide good hardness, dampening, and some corrosion resistance. These grades are very brittle and cannot be welded. See main ni-resits properties below, ...

Grey Iron Castings - Durham Foundry

Grey iron is an alloy of iron, carbon and silicon which refers to a range of cast irons which solidify with a eutectic. Consequently these alloys should be considered ternary Fe-C-Si alloys. Despite this, the principles of cast iron solidification are understood from the binary iron-carbon phase diagram, where the eutectic point lies at 1154°C...

Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS

3.5% Mo and can be supplied either as-cast with an austenitic or austenitic-martensitic matrix, or heat treated with a martensitic matrix microstructure for maximum abrasion ... These cast iron grades are alloyed with 12 to 39% Cr at temperatures up to 1040 Cforscalingresistance.

Austenitic Ductile Iron Castings - ASTM A-439 - Pacific ...

Austenitic Ductile Iron Castings – ASTM A-439 Austenitic ductile iron was developed to meet the demands of conditions that are too severe for conventional or austempered ductile irons. The high nickel content in austenitic ductile iron in conjunction with chromium in certain grades provides superior resistance to heat, corrosion and wear.

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