| After-sales Service: | Change/Return |
|---|---|
| Warranty: | 10 Year, 10 Year |
| Type: | Seamless, Seamless |
| Technique: | Hot Rolled, Hot Rolled |
| Material: | Alloy Steel, Alloy Steel |
| Surface Treatment: | Varnishing, Black |
| Samples: |
|---|
| Customization: |
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A519 gr 4140 Seamless Steel Tubing is an alloy steel grade which contains elements like chromium-, molybdenum-, and manganese. The ASTM A519 Grade 4140 is low alloy steel, which offers superior characteristics. For instance, some of the vital characteristics of specified A519 4140 Chrome Alloy Steel Hf Smls Tubing include high fatigue strength, high abrasion and impact resistance, along with good toughness, and torsional strength properties. As typical of this alloy steel, this particular specified Alloy Steel A519 4140 Square Tubing material could be welded using all conventional shop practices. However, the mechanical properties of this ASTM A519 Grade 4140 pipe tend to get affected these tubes are welded in the heat-treated condition. Hence, a post-weld heat treatment must be conducted on the ASTM A519 Grade 4140 Mechanical Tubing.
The A519 gr 4140 Seamless Tubing manufactured under this specification is a tubular product made without a welded seam. The tubes are usually manufactured by hot working the steel. And if necessary, the A519 Grade 4140 Steel Tubing can be produced by subsequently cold finishing the hot worked product i.e. the ASTM A519 tube in order to achieve not only the desired shape, but also the desired dimensions and properties. The A519 4140 Hot Finished Tubing material can be furnished in any of the following shapes i.e. - round, square or rectangular. Although at our factory, we can manufacture these tunes in special sections, depending on customizations given by our client or on basis of the application for what these tubes are used. Heat analysis is often conducted on the Chrome Moly Steel ASTM A519 4140 Boiler Tubing in order to determine the specified percentages of the elements.
Chemical Composition
| Element | Content (%) |
|---|---|
| Iron, Fe | 96.785 - 97.77 |
| Chromium, Cr | 0.80 - 1.10 |
| Manganese, Mn | 0.75 - 1.0 |
| Carbon, C | 0.380 - 0.430 |
| Silicon, Si | 0.15 - 0.30 |
| Molybdenum, Mo | 0.15 - 0.25 |
| Sulfur, S | 0.040 |
| Phosphorous, P | 0.035 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
|
Density
|
7.85 g/cm3
|
0.284 lb/in³
|
|
Melting point
|
1416°C
|
2580°F
|
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength |
655 MPa
|
95000 psi
|
| Yield strength |
415 MPa
|
60200 psi
|
| Bulk modulus (typical for steel) |
140 GPa
|
20300 ksi
|
| Shear modulus (typical for steel) |
80 GPa
|
11600 ksi
|
| Elastic modulus |
190-210 GPa
|
27557-30458 ksi
|
| Poisson's ratio |
0.27-0.30
|
0.27-0.30
|
| Elongation at break (in 50 mm) |
25.70%
|
25.70%
|
| Hardness, Brinell |
197
|
197
|
| Hardness, Knoop (converted from Brinell hardness) |
219
|
219
|
| Hardness, Rockwell B (converted from Brinell hardness) |
92
|
92
|
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) |
13
|
13
|
| Hardness, Vickers (converted from Brinell hardness) |
207
|
207
|
| Machinability (based on AISI 1212 as 100 machinability) |
65
|
65
|
| Standard | AISI 4140, ASTM A519 |
| Size | 1/2" NB to 36" NB |
| Thickness | 3-12mm |
| Schedules | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
| Tolerance | Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm
|
| Craft | Cold rolled and Cold drawn |
| Type | Seamless / ERW / Welded / Fabricated |
| available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| Length | Standard Double & In Cut length also. |
| End | Plain End, Beveled End, Treaded |
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