ASTM A519 1541

ASTM A 519 – Seamless Carbon and Alloy Steel Mechanical Tubing

Grade: 1541 (Higher Carbon Steels)

ASTM A 519 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.

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 Storage
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 1541 alloy steel pipes (max,%)

1541Heat Analysis


The purchaser shall specify a sizing method and, if required, a thermal treatment.
Sizing Methods:
HF – Hot Finished,
CW – Cold Worked,
RT – Rough Turned,
G – Ground.

Thermal Treatments:
A – Annealed,
N – Normalized,
QT – Quenched and Tempered,
SR – Stress Relieved or Finish Anneal.

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