ASTM4140 Scm440 42CrMo4 4130 4340 4145h Round Steel Bar
1.Steel grades and chemical composition
| Grade |
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Cu |
Mo |
| SCM430/4130 |
0.26 |
0.17 |
0.4 |
Max |
Max |
0.8 |
Max |
Max |
0.15 |
| 0.34 |
0.37 |
0.7 |
0.03 |
0.03 |
1.1 |
0.03 |
0.03 |
0.25 |
| SCM435/4135 |
0.32 |
0.17 |
0.4 |
Max |
Max |
0.8 |
Max |
Max |
0.15 |
| 0.4 |
0.37 |
0.7 |
0.03 |
0.03 |
1.1 |
0.03 |
0.03 |
0.25 |
| SCM440/4140 |
0.38 |
Max |
0.6 |
Max |
Max |
0.9 |
Max |
Max |
0.15 |
| 0.45 |
0.4 |
0.9 |
0.035 |
0.035 |
1.2 |
0.03 |
0.03 |
0.3 |
| SCM450/4150 |
0.48 |
Max |
0.6 |
Max |
Max |
0.9 |
Max |
Max |
0.15 |
| 0.53 |
0.4 |
0.9 |
0.035 |
0.035 |
1.2 |
0.03 |
0.03 |
0.3 |
2.Sizes we can offer:
| Delivery condition |
Diameter ranges |
| Hot tolled |
M12-M310 |
| Hot rolled+Q&T(Quenched and tempered) |
M12-M310. |
| Cold drawn +Q&T(Quenched and tempered) |
M10-M100 |
| Peeled / Peeled+Q&T |
M10-M100 |
| Forged/Forged+Heat treatment. |
M250-M1000 |
3. Packaging:
1): Bundle packing by Iron Strips.
2): Bundle weight is from 2mt to 3 mt.
3): Two or three tags will be attached on each bundle.
4. Mark:Hest Number,Weight,Sizes,Grade,etc
5.Payment terms:
30% TT prepayment ,70% TT after seeing BL copy or 100% irrevocable LC at sight
6.Shipping:
7-30 days after confirmation by vessel.
7.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 |
8.Our advantages:
1.Mature technology,low cost
2.The short flow,fast delivery
3.Standard operation,Extremely high consistency quality of goods.
We purse honest cooperation with clients all over the world, no matter whether you place order with us, you will enjoy down-to-earth service from us. If you are interested in some of our products, please contact me or send me an inquiry directly for details. We are looking forward to establishing long-lasting business relations with you in the future. Welcome your inquiry us at any time.
For more information, please feel free to contact with me directly.
Audited Supplier 
){kind=link}
){kind=link}