ASTM A3-87 Standard Spec for Steel Joint Bars, Low

1. Scope

1.1 This specification covers steel joint bars for connecting steel rails in mine, industrial, and standard railroad track.

1.2 Three grades of joint bars are defined for applications where non-heat treated bars are suitable:

1.2.1 Grade 1, low-carbon, primarily for industrial and mine use.

1.2.2 Grade 2, medium-carbon, primarily for industrial and mine use.

1.2.3 Grade 3, high-carbon, for general use in standard railroad track. They may be used in the production of insulated track joints.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

2. Referenced Documents

2.1 ASTM Standards:

A 370 Test Methods and Definitions for Mechanical Testing of Steel Products2 

2.2 U.S Military Standards:

MIL-STD-129 Marking for Shipment and Storage3

MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage3 

2.3 U.S. Federal Standards:

Federal Standard No. 123 Marking for Shipments (Civil Agencies)3

3. Ordering Information

3.1 Orders for joint bars under this specification shall Include the following information as appropriate:

3.1.1 Quantity—number of pairs of bars,

3.1.2 Type—design or type bar along with section designation and weight of rails being joined...

Mã tiêu chuẩn:	ASTM A3-87
Nhóm tiêu chuẩn:	ASTM A3-87
Tên văn bản(Tiếng Việt)	Standard Specification for Steel Joint Bars, Low, Medium, and High Carbon
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ASTM A2-90 Standard Spec for Carbon Steel Girder Rails

1. Scope

1.1 This specification covers carbon steel girder rails2 of three classes based on type or type and weight, and chemistry defined as follows and in Table 1:

1.1.1 Unless otherwise specified by the purchaser, girderguard rails shall be Class A.

1.1.2 Plain and grooved-girder rails under 135 lb/yd (67.1 kg/m) in weight shall be specified by the purchaser as either Class A or Class B.

1.1.3 Plain and grooved-girder rails of 135 lb/yd in weight and heavier shall be Class C, unless otherwise specified.

1.2 The values states in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

2. Referenced Documents 

2.1 U.S. Military Standards:

MIL-STD-129 Marking for Shipment and Storage3

MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage

2.2 U.S. Federal Standard:

Federal Standard No. 123 Marking for Shipments (Civil Agencies)

3. Classification of Rails

3.1 No. 1 Rails—Rails that are free of injurious imperfections and flaws of all kinds.

3.2 No. 2 Rails—Rails that contain surface imperfections in such number or of such character that shall not, in the judgment of the inspector, render them unfit for recognized uses.

4. Ordering Information

4.1 Orders for girder rails under this specification shall include the following information as appropriate:

4.1.1 ASTM designation and date of issue...

Mã tiêu chuẩn:	ASTM A2-90
Nhóm tiêu chuẩn:	ASTM A2-90
Tên văn bản(Tiếng Việt)	Standard Specification for Carbon Steel Girder Rails of Plain
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ASTM A1-92 Standard Specification for Carbon Steel Tee

This guide covers standard specifications for minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, and silicon. The tubes shall have a hardness number not exceeding a specific value. The following mechanical tests shall be conducted, namely: flattening test; flaring test; hardness test; and hydrostatic test.

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 minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service.

1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] inside diameter or 0.015 in. [0.4 mm] thickness.

1.4 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. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

Mã tiêu chuẩn:	ASTM A1-92
Nhóm tiêu chuẩn:	ASTM A1-92
Tên văn bản(Tiếng Việt)	Standard Specification for Carbon Steel Tee
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