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HUNAN FUSHUN METAL CO., LTD.
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ASTM A519 SAE AISI 4140 QT High Tensile Round Seamless Alloy Steel Tube
OverviewQuick DetailsStandard:APIStandard2:API 5CTThickness:5 - 100 mmSection Shape:RoundOuter Diameter(Round):30 - 530 mmPlace of Origin:Ch
$1 /piece
Product Details
Transaction Comments
SCM440TK 1.7225 Tubes 42CrMo4 Price SAE AISI 4140 Alloy Seamless Steel Round Pipe
1.Application:
4140 Seamless Tubing Are The Low Alloy Materials Used In The Industries. It Consists Of Manganese, molybdenum And Chromium Chemical Components Which Adds Advanced Properties And Characteristics To AISI 4140 Material. Hence, Making It More Applicable For The Applications As Compared To Other Materials. The Molybdenum Chemical Component Used To Enhance The Resistivity Of The Material In High Elevated Temperatures.
2.Steel Grades:
JIS G3441: SCM440TK
EN10297: 1.7225, 42CrMo4
ASTM A519: 4140
3.Competitive Advantage:
High strength
High tenacity
Good hardenability
High resistance to thermal properties.
Competitive price
Fast production leadtime
4.Sizes Range:
OD:50mm-540mm, WT:5mm-100mm
5.Chemical Composition(%):
| Grades | C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
|---|---|---|---|---|---|---|---|---|---|
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.025 max | 0.025 max | 0.90-1.20 | 0.25 max | 0.15-0.25 | 0.30 max |
| SCM440TK | 0.38-0.43 | 0.15-0.35 | 0.60-0.85 | 0.03 max | 0.03 max | 0.90-1.20 | 0.25 max | 0.15-0.30 | 0.30 max |
| 42CrMo4 | 0.38-0.45 | 0.40 max | 0.60-0.90 | 0.035 max | 0.035 max | 0.90-1.20 | / | 0.15-0.30 | 0.25 max |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.040 max | 0.040 max | 0.80-1.10 | / | 0.15-0.25 | 0.30 max |
6.Wall Thickness Tolerances
| Scope of Outer Diameter | Ratio of Wall Thickness and Outer Diameter (WT/OD) | Tolerance |
|---|---|---|
| 102mm max | / | +/12.5% or +/-0.4mm (Chose the bigger one) |
| 102mm min | 0.05 max | +/15% or +/-0.4mm (Chose the bigger one) |
| 102mm min | 0.05-0.10 | +/12.5% or +/-0.4mm (Chose the bigger one) |
| 102mm min | 0.10 min | (-10%, +12.5%) |
7.Mechanical Properties (Quenched and Tempered) (T=20°C if not differently stated)
| Wall Thickness (mm) | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Longitudinal) (%) | Elongation (Transverse) (%) | Notch impact energy (Longitudinal) [J] | Notch impact energy (Transverse) [J] |
|---|---|---|---|---|---|---|
| 8 max | 1100 max | 900 min | 10 min | 8 min | 30 min | / |
| 8-20 | 1000 max | 750 min | 11 min | 9 min | 35 min | 22 min |
| 20-50 | 900 max | 650 min | 12 min | 10 min | 35 min | 22 min |
| 50-80 | 800 max | 550 min | 13 min | 11 min | 35 min | 22 min |
8.Recommended Heat Treatment Temperatures
| Heat Treatment | Temperatures (°C) |
|---|---|
| Annealing | 680-720 |
| Normalizing | 840-880 |
| Austenitizing | 820-860 |
| Tempering | 540-680 |
9.Tube ends:
The hollow bar comes with square cut and deburred ends.
10.Certification:
The hollow bar is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.
11.Identification and Marking:
The hollow bar is marked in indelible ink, the details being repeated along the entire length of each tube and on a label, as follows:
Manufacturer’s trademark – manufacturing standard – dimensions -steel grade – supply condition – cast no. – item number.
12.Packaging:
The hollow bar comes in strapped bundles. The minimum weight of each bundle is 2000kg; the maximum bundle weight being 5000kg, with a minimum of 4 pieces
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