As a professional alloy specification exporter and supplier, GNEE supplies ASTM A519 covering various grades of carbon steel and alloy steel seamless mechanical tubes. It is hot worked and then cold worked into round, square, rectangular or special shapes.
Among them, ASTM A519 mainly includes 4130 and 4140 grades of alloy steel pipes. 4140 seamless steel pipe is a high-quality alloy structural steel pipe with excellent mechanical properties and processing properties. It corresponds to the Chinese standard alloy structural steel pipe 42CrMo.
4140 cold drew seamless steel tubes
Specifications of ASTM A519 Grade 4140 Mechanical Tubes
Size: 6mm-323.8mm
Specification: 10-XXS
Shape: Round or special section.
Length: Single random length/Double random length or as per customer's actual requirements
Grade: SAE 4130/AISI 4130/SAE 4140
Condition: Buyer shall specify sizing method and, if required, heat treatment.
Ends: Plain End, Beveled End, Treaded
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
Chemical Composition of ASTM A519 4140 alloy Tubing :
| Grade | C | Mn | P | S | Si | Cr | Mo |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.04 max | 0.04 max | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
Mechanical Properties of 4140 Seamless Tubing :
| Grade Designation | Conditional | Ultimate strength | yield strength | Elongation in 2in. Or 50mm, % | Rockwell, Hardness B scale | ||
| ksi | Mpa | ksi | Mpa | ||||
| 4140 | HR | 120 | 855 | 90 | 621 | 15 | 100 |
| SR | 120 | 855 | 100 | 689 | 10 | 100 | |
| A | 80 | 552 | 60 | 414 | 25 | 85 | |
| N | 120 | 855 | 90 | 621 | 20 | 100 | |
Why choose GNEE ASTM A519 4140 seamless tubing
GNEE mainly produces and deals in carbon steel pipes and alloy steel pipes. Our pipes include liquid conveying pipes, structural pipes, hydraulic support pipes, boiler pipes and bearing pipes. We usually have more than 50,000 tons of pipes in various sizes and standards. The stock size of 4140 alloy structural pipes ranges from 20mm to 406mm in outer diameter and 2mm to 70mm in wall thickness.
If you are looking for seamless pipe, please contact us in time to get a quote!sales@gneetube.com
Factory environment of Alloy 4140 Pipe
Gnee Customer visit
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