4140 steel pipe belongs to alloy structural steel. 4140 seamless steel pipe belongs to the US grade, which is equivalent to my country's 42CrMo steel grade. This steel grade is medium hardenable steel, with a carbon content of 0.33%-0.48%, a tensile strength of 795MPa, a hardness of 241HB, etc. It has the advantages of high yield strength, good comprehensive mechanical properties, high strength, good toughness, and high hardenability. It can be used to manufacture steam turbine fasteners, salvage tools, etc.
SAE 4140 cold drawn steel pipe is harder than other steel grade standards. SAE 4140 alloy steel pipe is also suitable for low temperature applications and cold forging. GNEE stocks AISI 4140 materials with diameters ranging from 20mm to 190mm.
Alloy Steel ASTM A519 AISI 4140 Tubes Specifications
| Standards | ASTM A519 |
| Dimensions | ASTM, ASME and API |
| Size | 1/8″NB TO 30″NB IN |
| Schedules | 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier |
| Thickness | 0.35mm to 6.35mm OD in thickness ranging from 0.1mm to 1.2mm. |
| Form | Round, Square, Rectangular, Hydraulic etc. |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
ASTM A519 AISI 4140 Tubes Physical Properties
| Grade | ASTM A519 AISI 4140 | ||
|---|---|---|---|
| Metric | Imperial | ||
| Density | 7.85 g/cm3 | 0.284 lb/in³ | |
| Melting point | 1416°C | 2580°F | |
ASTM A519 SAE 4140 Cold Drawn Tube
ASTM A519 AISI 4140 Seamless Tubes Chemical Composition
| Grade | ASTM A519 AISI 4140 | |
|---|---|---|
| min | max | |
| C | 0.38 | 0.43 |
| Mn | 0.75 | 1.0 |
| Si | 0.15 | 0.30 |
| P | – | 0.035 |
| S | – | 0.040 |
| Cr | 0.80 | 1.10 |
| Mo | 0.15 | 0.25 |
| Fe | 96.785 | 97.77 |
Why Choose GNEE
GNEE exports A519 steel pipes to 65 countries and regions around the world every year, with prices 5% lower than other suppliers, to help you solve any doubts and provide project solutions! If you are looking for AISI 4140 seamless pipes, please contact us for a quote!
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FAQ
What is the ASTM standard for 4140 steel?
ASTM 4140 steel is an alloy structural steel that falls under the ASTM A29/A29M steel grade standard. AISI 4140 is used in the oil and gas industry and large mechanical structures.
What is the delivery time?
About 15-35 days after we confirm your request.
Do you have a quality control system?
Yes, we have our own quality control laboratory.
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