ASTM A995/995M, Standard Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts1

The duplex stainless steels offer a combination of enhanced mechanical properties and corrosion resistance when properly balanced in composition and properly heat treated. Ferrite levels are not specified, but these grades will develop a range of approximately 30 to 60 % ferrite with the balance austenite. Read more

Castings — System of dimensional tolerances and machining allowances

Mainly indicate the tolerance of castings, such as sand casting, investment casting, die casting and other casting method. Read more

Cast Iron with Nodular Graphite Unalloyed and Low Alloy Grades – DIN 1693 Part 1:

1. Properties and analysis

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1. Field of application

in conjunction with the general technical delivery conditions specified in DIN 1690 Part 1, this standard specifies the properties of carbon and low alloy flake graphite cast iron ( grey cast iron) in castings manufactured in sand moulds or moulds of comparable thermal diffusivity.

The following characteristics to be sonsidered are sistinguished:

a) the tensile strength in separately cast or cast-on (test) samples ( see table 1), or

b) the hardness of the material in the castings ( see talbe3)

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Abstract

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 abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 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.

1.1.1 This specification subordinates chemical composition to tensile strength.

1.2 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 (see X1.2).

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

astm-a48a-48m-03.pdf

The material in A128 Standard is suitable to sand casting and investment casting method.

Title
Standard Specification for Steel Castings, Austenitic Manganese

ASTM International

Publication Date:
Dec 15, 1993

Scope:

This specification covers Hadfield austenitic manganese steel castings and alloy modifications.

The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

Keywords:

austenitic manganese steel

manganese steel

steel castings

ASTM A128/128m-93 reapproved 2003.pdf

This Standard material is suitalbe to sand casting and investment casting.

ISO 3755:1991 Cast carbon steels for general engineering purposes

This International Standard specifies requirements for eight grades of heat-treated cast carbon steels for general engineering purposes. Four of the grades have a restricted Chemical composition to ensure uniform weldability.

1.2 In cases where castings are produced by welding together component Parts, this International Standard does not cover the welding process or the properties of the weldment.
1.3 These grades are intended to be used at ambient temperature. t-lowever, properties at other temperatures may be agreed upon by using the
supplementary requirements in 9.4.1 or 9.4.4 of ISO 4990:1986.

Pls dowload the standard document by PDF: ISO3755 Cast Carbon Steel for General Genineering Purposes.pdf

Steel casting, sand casting, investment casting standard, ASTM A217 WC1,WC4,WC9,WC5,WC6,WC11,….

Abstract

This specification covers steel castings, martensitic stainless steel and alloys steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature and corrosive service. The grades of steels covered here are: Grade WC1, Grade WC4, Grade WC5, Grade WC6, Grade WC9, Grade WC11, Grade C5, Grade C12, Grade C12A, and Grade CA15. Heat treatment shall consist of normalizing and tempering for Grade C12A and tempering for all other grades. Heat treatments shall be performed after castings have been allowed to cool. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, molybdenum, chromium, nickel, vanadium, manganese, phosphorus, sulfur, silicon, columbium, nitrogen, aluminum, copper, titanium, tungsten, and zirconium. The surface of the casting shall be examined visually and shall be free of adhering sand, scale, cracks and hot tears. Steels shall undergo tension test, and shall conform to the following mechanical requirements: tensile strength, yield strength, elongation, and reduction of area. Read more

 Abstract

 This specification covers carbon steel castings for general applications. The grades of steels covered here are: Grade N-1, Grade N-2, Grade U-60-30 [415-205], Grade 60-30 [415-205], Grade 65-35 [450-240], Grade 70-36 [485-250] and Grade 70-40 [485-275]. Except for Grades N-1 and U-60-30, all steel castings shall be heat-treated by full annealing, normalizing, normalizing and tempering, or quenching and tempering. Heat treatments shall be performed after castings have been allowed to cool. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, silicon, sulfur and phosphorus. Except for Grades N-1 and N-2, all steels shall undergo tension test, and shall conform to the following mechanical requirements: tensile strength, yield point, elongation, and reduction of area.This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers carbon steel castings for general applications that require up to 70 ksi (485 MPa) minimum tensile strength.

Note 1—The grades covered by this specification represent materials that are suitable for assembly with other steel castings or wrought steel parts by fusion welding. It is not intended to imply that all these grades possess the same degree of weldability or that the same welding techniques can be used on all castings. It is the responsibility of the purchaser to establish for himself a suitable welding technique.

1.2 Several grades and two classes of steel castings are covered, as indicated below. The grade and class desired shall be specified by the purchaser.

1.2.1 Grade N-1—Chemical analysis only.

1.2.2 Grade N-2—Heat-treated but not mechanically tested.

1.2.3 Grade U-60-30 [415-205]—Mechanically tested but not heat-treated.

1.2.4 Grades 60-30 [415-205], 65-35 [450-240], 70-36 [485-250], and 70-40 [485-275]—Heat-treated and mechanically tested.

1.2.5 Class 1 and Class 2 steel castings shall be specified in accordance with 9.2.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

astm-a27a-27m-03.pdf

This specification covers carbon steel castings for valves, flanges, fittings, or other pressure-containing parts for high-temperature service and of quality suitable for assembly with other castings or wrought-steel parts by fusion welding. Covered here are three grades of carbon steel (Grades WCA, WCB, and WCC), the selection of which shall depend on the design and service conditions, mechanical properties, and the high temperature characteristics. Castings shall be heat treated and furnished, as appropriate to their design and chemical composition, in the annealed, or normalized, or normalized and tempered conditions after they have been allowed to cool below the transformation range. Furnace temperatures for heat treating shall be effectively controlled by pyrometer. Steel castings shall adhere to chemical composition and tensile property requirements, which include tensile strength, yield strength, elongation, and reduction of area. The surface of castings shall be free of adhering elements such as sand, cracks, hot tears, and other discontinuities, and as such be repair welded when judged appropriate. Read more