Alloy Steel Round Bar 4140/Aisi 4140 Round Bar,1.7225 Steel,4140 Round Steel Bar
4140 42CrMo GR10.9 steel bar alloy steel bar with QT for high strength bolt
1.4140 42CrMo SCM440 steel rod Chemical Composition (%):
| Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
| 42CrMo4 |
0.38-0.45 |
0.17-0.37 |
0.40-0.70 |
≤0.035 |
≤0.035 |
0.90-1.20 |
0.15-0.25 |
| 1.7225 |
0.38-0.45 |
≤0.40 |
0.60-0.90 |
≤0.025 |
≤0.035 |
0.90-1.20 |
0.15-0.30 |
| 4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
≤0.035 |
≤0.040 |
0.80-1.10 |
0.15-0.25 |
2.4140 alloy steel bar avaliable sizes
| Commodity delivery condition |
Dimensions |
| Hot rolled steel round bars |
10mm to 350mm |
| Forged steel round bars |
200mm to 800mm |
| Forged steel square block |
200mm*200mm to 500mm*500mm |
| Forged steel flat block |
(150mm to 500mm)*(200mm to 500mm) |
| Hot rolled and peeled or turned steel bright bars |
20mm to 800mm |
4.42CrMo4 steel bar delivery condition:
Hot rolled or forged, Peeled or black surface, annealed or QT.
4.4140 SCM440 steel bar applications:
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
5.1.7225 42CrMo4 steel round bar heat treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
6.SCM400 4140 steel bar inspection:
Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
7.Steel bar packing situation:
standard seaworthy packing or as customer required
8. 4140 steel bar delivery time:
always ready stock shipped within 7days,30 days for new material
9. 42CrMo4 alloy steel bar production process:
EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional)
scm440 grade alloy steel scm440 steel scm440 steel bar 4140 quenched and tempered steel properties 4140 steel equivalent grade 4140 steel equivalent 4140 steel round bar 4140 steel round stock chemical composition of aisi 4140 steel 42crmo alloy steel 42crmo4 alloy steel bar 42crmo4 forged steel 42crmo4 seamless steel pipes 42crmo4 steel rod heat treatment of 42crmo4 steel 1045 carbon steel hex bar 17-4 ph stainless steel hex bar 303 stainless steel hex bar 304 stainless steel hex bar 4130 alloy steel hex bar bright mild steel hex bar a36 steel round bar alloy steel round bar alloy steel round bar hs code alloy steel round bar manufacturer astm a36 steel round bar b16 steel round bar bending mild steel round bar black steel round bar bright mild steel round bar bright mild steel round bar sizes bright mild steel round bar tolerances bright steel round bar carbon steel round bar astm
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