| Customization: | Available |
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| After-sales Service: | One-Stop Service |
| Warranty: | Mtc, One Year |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
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Product Name |
Alloy steel plate |
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Thickness |
8mm ~150mm or at your requirements |
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Length |
1m~12m or at your requirements |
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surface |
Black |
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Payment term |
T/T or L/C |
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Delivery condition |
Q+T |
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Trade term |
FOB/CFR/CIF |
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Delivery time |
7-15 DAYS |
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Package |
According to customers' requirements or export's demands |
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Port |
Shanghai/Tianjin/Qingdao port of China |
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MOQ |
1 Tons |
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Character
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1,high strength and hardenability 4,good combination property 5,high quality and competitive price |
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Application |
made into ships, vehicle, aircraft, missile,weapons,railways,bridge,pressure vessel, machine tool,gears in gearbox, gear shaft, cam, worm, claw clutch, etc. |
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Products |
Our products mainly cover steel round bar, steel square bar,steel flat bar, steel plate, steel sheet, steel coil and steel pipe.Being the top-class products in China,our products have been used in all kinds of fields,such as aerospace, electronic information, machine manufacture,petrochemical,automotive,communication, transportation and medical instruments, etc. Our products are sold all over the world , mainly in Asia, South America, and Africa.
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Best Wishes |
You are very welcome to visit our site, and ask any questions that confuse you. We provide the best products and service with our passion, integrity, and sincerity. Hoping that we can have a cooperation with you in the future and we can get win-win. At last,Happy every day for you. |
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General Information:
Chromium molybdenum high tensile steel with yield strength of 550N/mm2.
Chromium renders steel oil hardenable and increase hardenability.
Weldability suffers with increasing chromium content.
High temperature strength and high pressure hydrogenation properties are promoted by chromium and molybdenum.
Molybdenum significantly reduces temper brittleness.
Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
Comparable Standards:
| AISI/SAE | DIN | W.Nr. | AFNOR | JIS | GB |
| 4140 | 42CrMo4 | 1.7225 | 42CD4 | SCM440 | 42CrMo |
| 4130 | 34CrMo4 | 1.7220 | 30CD4 | SCM430 | 30CrMo |
Chemical Analysis (%):
| C | Mn | Si | Cr | Ni | Mo | P | S | Cu | |
| 4140 | 0.38-0.45 | 0.50-0.80 | 0.17-0.37 | 0.9~1.20 | ≤0.30 | 0.15~0.25 | ≤0.035 | ≤0.035 | ≤0.30 |
| 4130 | 0.26~0.34 | 0.40~0.70 | 0.17~0.37 | 0.80~1.10 | ≤0.030 | 0.15~0.25 | ≤0.035 | ≤0.035 | ≤0.030 |
Hot work and Heat treatment temperatures:
| Forging | Normalization | Subcritical annealing | Isothermal annealing | Hardening | Tempering | |
| 4140 | 1100~900ºC | 860~880ºC | 680~720ºC | 830~900 670x3h |
830~860 oil | 550~650 |
| 4130 | 1100~900ºC | 860~880ºC | 680~720ºC | 830~900 670x3h |
830~860 oil | 550~650 |
Machanical Properties:
| Tensile str. (N/mm2) | Yield point (N/mm2) | Elongation (%) | Contraction (%) | Impack work (J/cm2) | Hardness (HB) | |
| 4140 | ≥1080 | ≥930 | ≥12 | ≥45 | ≥63 |
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| 4130 | ≥930 | ≥785 | ≥12 | ≥50 | ≥63 | ≤229 |
1.Professional Factory
We have our own factory with more than 10years production history in hoist equipment manufacturer.
2.High Quality
All of our products have been checked seriously: With Chemical Composition and Mechanical Properties Analysis; Hydrostatic Test, Dimensional and Visual Inspection, Also With Nondestructive Inspection.
3.Good Prices
Competitive prices based on the same quality as we are factory supplier.
4.Fast Delivery
professional packing, avoid damage.
5.OEM Custom
Samples can be made according to your requirements before placing order.
6.Best Service
Your kind inquiry will be replied in 8 hours or 24 hours if time difference.
7.Help to Solve Problem
Specialized team make us strong support to solve your problems from purchase to application.
1.We have our own factories with advanced equipment and well trained workers.
2.We can provide factory price with trading company services.
3.We control production quality very strictly to keep none compensation and make inspection for customer during the production and loading.
4.We guarantee 24 hours online response.
5.We accept small order quantity before formal cooperation.
6.Free sample and latest price list will be offered for your evaluation.
7.During The Delivery
We will arrange the shipment with reliable service and reasonable price, all the cost will be clear for you to compare.
Q: Are you trading company or manufacturer?
A: We are professional manufacturer for steel plate,steel tube,steel bar,section steel and steel plate cutting service,our company also is a very professional a trade company for steel products.we can also provide a wide range of steel products.
Q: Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.
Q: Do you provide samples ? Is it free or extra?
A: The sample could can provide for customer with free,but the courier freight will be covered by customer account.
Q: Do you accept the third party inspection?
A: Yes absolutely we accept.
Q: How can I get your quotation as soon as possible?
A: The email and message will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours.Please send us your requirement and order information,specification(Steel grade,size,quantity,tonnage and destination port),we will work out a best price soon.
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