Home > Industry Information > 5140 Ml40cr SCR440 Gr8.8 Cold Drawn Steel Bar Steel Shaft
5140 Ml40cr SCR440 Gr8.8 Cold Drawn Steel Bar Steel Shaft
2021-04-19
Model NO.: Steel Bar
Special Use: Free Cutting Steel, Mold Steel
Application: Structural Steel Bar
Production Process: Hot Rolled+Qt+Cold Drawn+Polished
Hardness: According to Client′s Request
Main Grade: 5140 B7 40cr 4140 B16
Main Usage: Bolts&Nuts
Surface: Bright Surface
Trademark: Shandong
Transport Package: Anti-Rust Packaging
Specification: customized
Origin: China
5140 ML40Cr SCr440 GR8.8 alloy steel round bar1.5140 40cR Scr440 Gr8.8 steel bar Main standard
| GB | JIS | DIN | ASTM/AISI/SAE |
| 40Cr | SCr40 | 41Cr4 | 5140 |
| C | SI | MN | S | P | Cr | Ni/Cu |
| 0.38-0.43 | 0.15-0.35 | 0.70-0.90 | 0.025 (max) | 0.025 (max) | 0.70-0.90 | 0.25 (max) |
3.40Cr 5140 41Cr4 SCr440 steel bar Mechanical Properties with QT
Hardness:207HB or according to client's request
Tensile strength:Min 980MPA
Yield strength: Min 785MPA
elogation:9% Reduction of area:45%
AKV(impact value):59J
4.our 40Cr 5140 41Cr4 SCr440 steel bar avaiable size
| Hot rolled round bars | 16mm to 350mm |
| Cold drawn bars | 6mm to 50mm |
| Forged round bars | 200mm-800mm |
- s45c c45 sae1045 aisi1045 steel bar Production Line
2)Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) --UT Check - Processing and Distribution Center( Further Processing Cold Drawn/Peeling/Turning or QT/annealing)
3)Gas Contents:
| Oxygen | Nitrogen | Hydrogen |
| 20ppm(max) | 90ppm(max) | 2ppm(max) |
4)Inclusion Rating:ASTM E45A
| A | B | C | D | |
| MAX | MAX | MAX | MAX | |
| Thin | 2.5 | 2.0 | 0.5 | 0.5 |
| Thick | 1.5 | 1.0 | 1.0 | 1.0 |
6)Billet/steel bloom size
20-50mm: 180*220mm steel billet
52-85mm: 180*220mm steel billet
85-120mm: 260*300mm steel billet
130-210mm: 650mm round billet
210-350mm:800mm steel billet
6.Steel bar Supply condition Surface Treatment: Peeling, Turning, Grinding, Milling, Drilling, Boring
Heat Treatment: Normalizing, Annealing, Quenching+ Tempering
7.Straightness: 3mm/m(max)
8. Steel bar Packing:
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 3 min places of the bar length and tagged properly.
*For further processing products such as cold drawn/peeled or heat treated goods, plastics bag wrapped or pallet loading is available according to customer's demands.
- Delivery time of steel bar:7-10days of stock,30 days after order confirmed of new material
- Payment term:TT or LC
- Free sample:Yes
- steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT sep1921 C/c
- Our steel bar mill's certificate
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel;
ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;
JIS MARK,KS MARK.
With dynamic and passionate professional sales team and technical team,Our company Dajin make great efforts to integrate China's steel resources and dedication to customers the provision of specialized steel products and services.Hope establish a good relationship with clients, growth together.
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Keywords:cold drawn steel bar/GR8.8 steel bar for bolts/B7 QT steel to make bolts/CD steel bar/cold drawn steel bar/GR8.8 steel bar for bolts/B7 QT steel to make bolts/CD steel bar/cold drawn steel bar/GR8.8 steel bar for bolts/B7 QT steel to make bolts/CD steel bar
Cold drawn steel round bar is produced by cold drawing from hot rolled steel round bar or hot rolled steel wire rod. Our advantages and more services of cold drawn steel round bar includes:
1) Wide range of diameters from 10mm to 150mm
2) Customized Length from 100mm to 12000mm
3) Good surface roughness: 0.4um to 1.6um
4) Good straightness: 0.5mm/m to 2mm/m
5) Good roundness: 80% of diameter tolerance
6) Diameter tolerance: -0.02mm to -0.1mm / h9, h10, h11
7) Matched further processing: Grinding, polishing, straightening
8) Anti-rusty package
9) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
10) Fast delivery time
Cold Drawn Steel Round Bar, Cold Drawn Steel Bright Bar, Cold Drawn Round Steel Bar, Cold Drawn Bright Steel Round Bar, Cold Drawn Round Steel
Hong-Steel Co., Ltd. http://www.js-luggagecarts.com