steel 4140 / 4140 properties / aisi 4140
steel 4140 / 4140 properties / aisi 4140
Aisi 4140 Steel Alloy Steel SAE 1045 4140 4340 8620 8640
hot sale aisi 4140 steel round bar
1.7225/4140 Alloy Steel/SAE 4140 Steel Price for 4140 round bar
aisi 4140 carbon alloy steel round bars
steel 4140 / 4140 properties / aisi 4140
1.Size details
Sizes details | diameter | 8-310mm |
| length | 1-12m(canbe customerized) |
| Sizes tolerance | length | -0/50mm(max) |
| Straightness | 3mm/m(max) |
2.Chemical composition
| Standard | Grade | C | Cr | Mo | Si | Mn | P | S |
| GB | 42CrMo | 0.38-0.45 | 0.90-1.20 | 0.15-0.25 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 |
| JIS | SCM440 | 0.38-0.43 | 0.90-1.20 | 0.15-0.30 | 0.15-0.35 | 0.60-0.90 | 0.03 | 0.03 |
| ASTM | 4140 | 0.38-0.43 | 0.80-1.10 | 0.15-0.25 | 0.15-0.35 | 0.75-1.00 | 0.035 | 0.04 |
| ENISO | 42CrMo4 | 0.38-0.45 | 0.90-1.20 | 0.15-0.30 | ≤0.40 | 0.60-0.90 | 0.035 | 0.035 |
| 1.7225 |
3.Mechenical property
| Tensile Strength | Yield Strength | Elongation | Reduction | I mpacting Energy | HBW |
| Rm,MPa | Rel,MPa | A,% | Z,% | Aku,J | ≤ |
| | | | | | After annealing |
| ≥1080 | ≥930 | ≥12 | ≥45 | ≥63 | 217 |
4.Packing:
1): Paint oil on the surface to protect steel bars from rusting.
2): Bundle packing by Iron Strips.
3): Bundle weight is from 2mt to 3 mt.
4): Two or three tags will be attached on each bundle.
5.Quality control
1.Processing Line:
Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
2.Gas content level:O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
3.Grain Sizes:5-8
contact person | Ms. Phoebe Chen |
| Mobile | 86 18963469091 |
Qingdao Helio Steel Co., Ltd. Was established in March19, 2012. Our company's business staff members possess professional service capabilities of steel products, with more than a decade of experience on steel production, technology development, product sales and foreign trade. We comply the principle of friendly cooperation and mutual benefit, and persist in developing together with new and old customers.
Our company is located in Qingdao, a coastal city of Shandong Province, which is near Laiwu Steel Group. Only Laiwu City has steel production capacity of 20 million tons each year. Meanwhile, it is also the largest production base of powder metallurgy products in the whole country. Otherwise, there are more than ten well-known steel manufacturers within the province and the surrounding areas, so steel resources here is abundant and we can meet customers' various requirements.
Our company is mainly engaged in steel products for various specifications and materials, such as continuous casting billets, continuous casting tubes, hot-rolled bars, tubes, hot-rolled square steel, flat steel, H section steel, hot-rolled coils, cold-roll large-size panels, forging materials, and forgings.
We also run the import and export of steel products, based on the needs of customers at home and abroad to develop a variety of special steel products and timely delivery. I hope to sincerely cooperate with domestic and foreign customers, providing high-quality and low-priced products and professional services.
