15 Years Experience Factory aisi 4140 carbon alloy steel round bar

1.Diameter 80 to 800 mm 
2.Black or Bright surface 
3.Annealed or Quenched and tempered provided 
4.Cutting service provide

Machine Capability

Tensile strength (N/mm2Mpa): >=980(100)
Elongation: >=12
Yield strength: >=835(85)
Hardness:( HBS 100/3000)<=269
Reduction of area:>=55

Akv(J)>=78  akv(J/cm2):>=98(10)

Chemical Composition (%):

Wuxi Mingshang Special Steel Co., Ltd is located in the one of three steel business areas, Wuxi city Jiangsu province,has the most convenient transportation,near to Shanghai.Our company has own large-scale indoor warehouse with perennial spot stocks above 40000 tons.

The main products of our company include:

1.Steel Round Bar:cold drawn,hot rolled

2.Steel Round Pipe:Seamless pipe,ERW Pipe

3.Steel Square/Rectangular Pipe:Seamless or Welded

4.Steel profiles including H beam,I beam,angle steel,channel steel,flat bars etc

5.Galvanization series,including galvanized angle steel,galvanized channel steel,galvanized flat steel,galvanized round steel,galvanized square pipe,galvanized round pipe etc

1, what is your time of making a sample

Usually we will take 1~3 days to make the sample

 2,What is your delivery time?

For stocks, we can send the goods to loading port within 7 days after receiving your deposit

For production period, it usually needs about 15days- 30 days after receiving the deposit 

3, What is your shipping port?

Shanghai port, Ningbo port, Tianjin Port

4, What is your payment terms?

Usually 30% deposit by TT in advance and balance against copy of BL or LC at sight 

5,What is your company locations?

Our office is located in Wuxi City Jiangsu province.

We have two indoor warehouses to ensure enough stock for different materials with sizes

You are welcome to visit our factory and office anytime.