Gnee Astm Aisi En19 4140 Forged Alloy Steel Bars
ASTM AISI En19 Alloy Steel Hot Rolled Forged Round Bars / En19 4140 Forged Alloy Steel Bars
AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength.
1).Composition:
| C | Si | Mn | Cr | Mo | P | S |
| 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.8-1.10 | 0.15-0.25 | <0.035 | <0.04 |
2). Equivalent Grades :
| GB | DIN | ASTM | JIS | BS | NF |
| 42CrMo | 1.7225 | 4140 | SCM440 | 708M40 | 42CD4 |
3).Dimensions:
Length:3.5m-9m or as required
4). Smelting Process:
EAF+LF+VD
Note:EAF=Electric Arc Furnace; LF=Ladle Furnace; VD=Vacuum Degassing;
5). Properties of 4140 alloy steel:
Special alloy steel, engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness, creep strength, repeated impact resistance.
6). Application of 4140 alloy steel:
Components with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering
Gnee with good reputation, high-quality products, solid strength and lower price is famous in the country. Our company has rich experience in trading as we are engaged in domestic trading for more than ten years.
In 2012, we opened the market to the abroad. Our company is the collection of processing and operating. And we have a high supply ability.Our main products are stainless steel, galvanized steel, carbon steel and etc. These products apply to engineering, coal mine, textile, electric power, boiler, machinery, military industry and other fields.
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metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
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