ASTM A519碳和一个lloy steel mechanical tubing

ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

Pipe and Tube Specifications of ASTM A519

This ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

Application:

• For mechanical engineering
• For mechanical and pressure use,and also for transporting steam,water,gas and etc.

The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.

The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified 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.

Size range(mm):

• Out diameter:10-324mm
• Wall Tickness:1-30mm
• Length:14000mm max

Features Specifications

OD(mm)

Wall Thickness Unit(mm)

2

2.5

3

3.5

4

4.5

5

6

6.5-7

7.5-8

8.5-9

9.5-10

11

12

Φ25-Φ28

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Φ32

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Φ34-Φ36

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Φ38

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Φ40

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Φ42

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Φ45

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Φ48-Φ60

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Φ63.5

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Φ68-Φ73

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Φ76

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Φ80

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Φ83

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Φ89

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Φ95

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Φ102

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Φ108

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Φ114

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Φ121

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Φ127

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Φ133

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Φ140

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Φ146

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Φ152

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Φ159

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Φ168

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Grade:

• ASTM A519 1020
• ASTM A519 1025
• ASTM A519 1026
• ASTM A519 1035
• ASTM A519 1045
• ASTM A519 4130
• ASTM A519 4140

Note:

• DN — Nominal Diameter
• NPS —Nominal Pipe Size

Steel grade and Chemical composition (%) of ASTM A519:

Mechanical Properties of ASTM A519:

Please note the meaning of below abbreviation in table 2:

• HR----Hot Rolled
• CW----Cold Worked
• SR----Stress Relieved
• A----Annealed
• N----Normalized

Dimension Tolerances

Pipe Type	Pipe Sizes		Tolerances
Cold drawn	OD	≤48.3mm	±0.40mm
	WT	≥60.3mm	±1%mm

ASTM A519-89/ASME SA519 Material comparison tables

Seamless mechanical tubing is manufactured from carbon and alloy steels for structural or other mechanical purposes involving machining or heat treating, where close tolerances, smooth finish, or definite physical properties are important factors.

• ASTM A519-89/ASME SA519 Standard specification

Scope

1.1 this specification covers several frades of carbon and alloy steel seamless mechanical tubing. The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.

1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.

1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.

1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.