Product Description
EN19 4140 42CrMo4 SCM440 HOT ROLLED STEEL ROUND BAR AND ROUND ROD
SAE 4140 EN19 Hot Rolled Black Surface Steel Round Bar.
1.Supplied sizes range:
Hot rolled steel:16mm to 310mm.
Forged steel:250mm to 1000mm
Cold drawn steel:5mm to 100mm
Peeled steel:20mm to 300mm
Q&T steel :12mm to 1000mm
2.Equivalent grades in different standard
3.Chemical compositions
4.Physical property
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
4. non-metallic inclusions contorlling level
6.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed for new produced .
7.Payment term:TT or LC
8.Free sample:Yes
9.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test and so on.
10.Mark: Heat Number,Weight,Sizes,Grade,etc
SAE 4140 EN19 Hot Rolled Black Surface Steel Round Bar.
1.Supplied sizes range:
Hot rolled steel:16mm to 310mm.
Forged steel:250mm to 1000mm
Cold drawn steel:5mm to 100mm
Peeled steel:20mm to 300mm
Q&T steel :12mm to 1000mm
| GB,YB | JIS | DIN(W-Nr.) | BS | NF | |
| 42CrMo | SCM440/(SCM4) | 42CrMo4-1.7225 | 4140 | 708M40/709M40/708A42/EN19 | 42CD4 |
3.Chemical compositions
| Standard | Grade | C | Cr | Mo | Si | Mn | P | S |
| ASTM | 4140 | 0.38-0.43 | 0.80-1.10 | 0.15-0.25 | 0.15-0.35 | 0.65-1.00 | 0.035 | 0.04 |
4.Physical property
| Tensile Strength | Yield Strength | Elongation | Reduction | Impacting Energy | HBW(after annealing) | |
| Rm,MPa | Rel,MPa | A,% | Z,% | Aku,J | ≤ | |
| ≥1080 | ≥930 | ≥12 | ≥45 | ≥63 | 217 | |
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
4. non-metallic inclusions contorlling level
| A | B | C | D | |
| MAX | MAX | MAX | MAX | |
| Thin | 2 | 2 | 2 | 2 |
| Thick | 1 | 1 | 1 | 1 |
6.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed for new produced .
7.Payment term:TT or LC
8.Free sample:Yes
9.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test and so on.
10.Mark: Heat Number,Weight,Sizes,Grade,etc
