A519 4130 60Ksi 75Ksi Толстая бесшовная труба из легированной стали механическая

Описание и отзывы

Характеристики

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.

Grade: 4130

Minimum yield strength: 60K, 75K

Heat treatment: Quenching + tempering

A519 4130 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 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 4130 alloy steel pipes (max,%)

Wall Thickness Tolerances for Round Hot-Finished Tubing

Wall Thickness Tolerances for Round Cold-Worked Tubing

Typical Tensile Properties, Hardness and Thermal Condition

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

Outside Diameter Tolerances for Round Hot-Finished Tubing