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ASTM A519 4130

Time:2019-09-29 Click:59

ASTM A519 4130

ASTM A 519 - Seamless Carbon and Alloy Steel Mechanical Tubing

 

This specification covers several grades of carbon and alloy steel seamless mechanical tubing. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the grade, the condition of the components,and the intended service. This specification covers both seamless hot-finished mechanical tubing and seamless cold-finished

mechanical tubing in sizes up to and including 12 – 3/4 in. (323.8 mm) outside diameter for round tubes with wall thicknesses as required. The tubes shall be furnished in the following  shapes, as specified by the purchaser: round, square, rectangular, and special sections.

Grade: 4130

A519 4140 alloy steel is a chromium,molybdenum and manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness,and torsional strength.

 

Referenced Documents

ASTM Standards:

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

A 1040 Guide for Specifying Harmonized Standard Grade Compositions for Wrought Carbon,Low-Alloy, and Alloy Steels

E 59 Practice for Sampling Steel and Iron for Determination of Chemical Composition

Military Standards:

MIL-STD-129 Marking for Shipment and Storage4

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

Federal Standard:

Fed.Std.No.123 Marking for Shipment (Civil Agencies)

Ordering Information

1 Orders for material under this specification should include the following, as required, to describe the desired material adequately:

1.1 Quantity (feet, weight, or number of pieces),

1.2 Name of material (seamless carbon or alloy steel mechanical tubing),

1.3 Form (round,square, rectangular or special shapes),

1.4 Dimensions (round,outside diameters and wall thickness; square and rectangular, outside dimensions and wall thickness; other,specify),

1.5 Length (specific or random, mill lengths),

1.6 Manufacture (hot finished or cold finished),

1.7 Grade,

1.8 Condition (sizing method and thermal treatment),

1.9 Surface finish (special pickling, shot blasting, or ground outside surface, if required),

1.10 Specification designation,

1.11 Individual supplementary requirements, if required,

1.12 End use, if known,

1.13 Packaging,

1.14 Product analysis and chemical analysis, if required,

1.15 Specific requirements, or exceptions to this specification,

1.16 Special marking, and

1.17 Special packing.

Chemical Compositions of A519 4130 alloy steel pipes (max,%)

4130

Heat Analysis

C

0.28-0.33

Mn

0.40-0.60

P

0.040

S

0.040

Si

0.15-0.35

Cr

0.80-1.10

Mo

0.15-0.25

 

Outside Diameter Tolerances for Round Hot-Finished Tubing

Outside Diameter Size Range,

Outside Diameter Tolerance, in. (mm)

in. (mm)

Over

Under

Up to 2.999 (76.17)

0.020 (0.51)

0.020 (0.51)

3.000–4.499 (76.20–114.27)

0.025 (0.64)

0.025 (0.64)

4.500–5.999 (114.30–152.37)

0.031 (0.79)

0.031 (0.79)

6.000–7.499 (152.40–190.47)

0.037 (0.94)

0.037 (0.94)

7.500–8.999 (190.50–228.57)

0.045 (1.14)

0.045 (1.14)

9.000–10.750 (228.60–273.05)

0.050 (1.27)

0.050 (1.27)

*Diameter tolerances are not applicable to normalized and tempered or quenched and tempered conditions.

 

Wall Thickness Tolerances for Round Hot-Finished Tubing

Thickness/OD(%)

Tolerance±%)

2.999 in.
(76.19 mm)

3.000 in.76.2 mm≤D
≤5.999 in.152.3mm

6.000 in.152.4mm≤D
≤10.750 in.273.05mm

Under 15

12.5

10.0

10.0

15 and over

10.0

7.5

10.0

 

Wall Thickness Tolerances for Round Cold-Worked Tubing

Thickness/OD(%)

Tolerance±%)

ID≤1.499 in.
(38.07 mm)

ID≥1.500 in.
(38.1 mm)

25 and Under

10.0

7.5

Over 25

12.5

10.0

 

Typical Tensile Properties, Hardness and Thermal Condition

Condition

HR

SR

A

N

Ultimate Strength, ksi[Mpa]

90[621]

105[724]

75[517]

90[621]

   Yield  Strength,ksi[Mpa]

70[483]

85[586]

55[379]

60[414]

Elongation in  2
in. or 50 mm,%

20

10

30

20

Rockwell Hardness B Scale

89

95

81

89

 

HR = Hot Rolled, SR = Stress Relieved, A = Annealed, N = Normalized

 

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