4140 Alloy Round Bar

Alloy steel is a type of steel alloyed with several elements such as molybdenum, manganese, nickel, chromium, vanadium, silicon, and boron. These alloying elements are added to increase strength, hardness, wear resistance, and toughness. The amounts of alloying elements may vary between 1 and 50%.

  • email: sale@cnbaosteel.com
  • Phone Number : +86 13016194956
  • Wechat id: +86 13016194956
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PRODUCT DESCRIPTION

Alloy round bars are characterized by stable mechanical properties, easy welding, high wear resistance and impact resistance. Mostly used in construction and machine manufacturing and so on.

PRODUCT DETAILS
Product Name4140 alloy round bar
GradeGB: Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E,etc. 
EN:S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ,etc.ASTM: Grade B, Grade C, Grade D, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade80, 4130, 4140,5160.etc.JIS: SPFC, SPHD, SPHE,etc.
TypeAlloy round bar
StandardAISI,ASTM,DIN,JIS,GB ,JIS,SUS,EN,etc
Material42CrMo SAE 1045 4140 4340 8620 8640
Length1-12M or according to the customer’s demand
Diameter 6-750mm as you required
SurfaceBlack Painted, PE Coated, Galvanized or Customized
AdvantagesHigh strength, good weldability, good machining performance, good corrosion resistance
ApplicationsWidely used in mechanical manufacture,construction field,farm vehicles,agriculture greenhouse,automotive industry, railway, decoration, steel structure, etc.
TechniqueHot Rolled/Cold Drawn/forged 
Tolerance±0.5%
ShapeRound
Production Capacity30000 tons/month
MOQ1 ton
Processing ServiceBending, Welding, Decoiling, Punching, Cutting
CertificationISO,CE,SGS,BV,BIS
SampleFree sample available
Sample Time3 Days
Delivery Time15-30 Days
PaymentT/T& L/C
PackageStandard export packing (inside:water proof paper,outside:steel covered with strips and pallets)
PRODUCT DISPLAY
PRODUCT QUALITY

We have complete testing equipment and strong technical force. The company has advanced production equipment, equipped with key equipment such as pressing machines, large heat treatment furnaces, beveling machines, sawing machines, large sandblasting machines, and various testing instruments.

QUALITY INSPECTION

Our products are processed by professional technicians, and each product is carefully screened before shipment. We′re pleased to get your Inquiry and we will come back to as soon as possible.

PACKING AND SHIPPING

We provide products with competitive prices based on good quality and schedule each shipment on time. We′re pleased to get your Inquiry and we will come back to as soon as possible.

APPLICATION

Our main manufactures are stainless steel, galvanized steel, carbon steel and etc. That apply to engineering, coal mine, textile, electric power, boiler, machinery, military industry and other fields.

Petroleum
Bridge
Marine Exploration
Electric Field
Boiler Field
Textile Field
The issues you care about

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Yes, we could make custom products according to your specific requirements.

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers’ requirement.

30% T/T in advance, the balance 70% before delivery. We will show you the photos of products and package before you pay the balance.

EXW, FOB, CIF, CFR, DDU

For stocks, we could transport the goods to loading port within 7 – 15 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Under normal circumstances, we ship from Shenzhen, Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.

In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.

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TIME

Delivery within agreed time

EFFICIENCY

Shipping worldwide

QUALITY

Lifetime service