1.Brief Introduction to 40Cr Chrome Plated Steel Bar

Chrome plated steel bars are chromium-plated steel products that can be supplied as piston rods in standard hydraulic and pneumatic applications. The chrome plated steel bar is normally used in conditions of high stress, friction and harsh climactic environments, so the quality of the base metal and subsequent surface treatment are of paramount importance. Wear resistance, corrosion resistance, surface smoothness, high yield strength and uniform quality are essential properties of hard chrome bar.

Hard Chrome bars are generally produced from steel bars combining high strength with excellent machinability and weldability. Common applications are found in agricultural machinery, production equipment, cranes, garbage compactors, lifters etc.

Steel Grade according to different standards:

China steel grades: GB standard	40Cr
Germany steel grades: DIN standard	41Cr4
Japanese steel grades: JIS standard	SCr440
American steel grades: AISI Standard	5140

2.Product Specifications of 40Cr Chrome Bar

Induction hardening: it is a form of heat treatment in which a metal part is heated by induction heating and then quenched. The quenched metal undergoes a martensitic transformation, increasing the hardness and brittleness of the part. Induction hardening is used to selectively harden areas of a part or assembly without affecting the properties of the part as a whole. The hardening depth is 1.5-5mm; medium/low-frequency quenching may lead to excessive depth and negative effect on strength; high-frequency quenching generally result in a shallow depth, and may ensure the balance of hardness and strength.

Thermal refining: Generally, the heat treatment method combined of quenching and high-temperature tempering is called thermal refining, which is widely applied to various important structural parts, especially the connecting rods, bolts, gears and shafts working under alternating load. The tempered sorbite has better mechanical property than normalized sorbite of the same hardness. Its hardness depends on tempering temperature and relates to stability of tempering and sectional dimension of workpiece, and is generally HB200-350.

3. Our Advantages in Manufacturing 40Cr Precision Steel Bar

a. Extensive production experience: we are specialized in cylinder, piston rod and cylinder barrel with an experience of 10 years.

b. Complete production facilities: owning precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.

c. High quality raw material: we mainly choose raw material from steel manufacturers such as TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.

d. Strict Physical/Chemical testing procedures: meeting the requirements of the product design and process, providing reliable testing data.

e. Short Delivery time: If one container 15-20 days. We also stock some standard-sized tubes and rods, if you need 3-5 pcs, we can delivery soon.

f. Safe packing: anti-rust oil be spread on tubes and rods before shipping, plastic caps on tube ends to protect inside surface, each rod be protected with cardboard tube. Finally be packed with seaworthy package or in wooden case.

g. Best after-sale service: Over 60% products are sold to the Southeast Asia, Middle East and Europe, and all products are trusted by domestic and foreign customers.

 

4. Main Equipments to Manufacture 40Cr Cylinder Bar

 

5. Testing Devices of 40Cr Cold Drawn Steel Bar

 

6. Packages of Steel Bars

 

7. FAQ

Q1:Can your products be customized?

We are specialized in cylinder, piston rod and cylinder barrel with an experience of about 10 years. We have a strong designing team, so any conventional product can be customized.

Q2:What about the after-sale services?

We provide 12 months quality warranty after dispatch. We also offer long-time technical advisory services.

Q3.What about the transpotation?

We can take any type of transpotation according to the customer's demand.

 

Please feel free to send us your detailed requirements, you would be satisfied with our service.

Contact Below:

Wuxi Longzhichen Machinery Co., Ltd

Att:Mr.Min

Phone:+86-18921387058

Tel:+86-510-83050629

Fax:+86-510-83050596

Web:www.honedtubing.com

Email:sales@wxlongchen.com

Add: Yangshan Supporting Area, Huishan District, Wuxi City, Jiangsu Province