Standard:SAE4140, 40CrMo, 40CrMo4 and SCM440

Scope:Covers several grades of carbon and alloy steel seamless mechanical tubing. The grades are listed in Table-1.This specification covers seamless cold-finished mechanical tubing. 

Size Range:Covers tubes in size up to and including 3 1/8(80mm) outside diameter for round tubes with wall thicknesses as required.

Shape:The tubes shall be furnished in the following shapes, as specified by the purchaser: round

Chemical Composition and Mechanical Properties(Type: Cold Drawn Seamless Mechanical/CDS) 

Please note the meaning of below abbreviation in table 2:

CW----Cold Worked
SR----Stress Relieved

A----Annealed
N----Normalized 

1.Packaging:

1).Plastic film and woven bag bundling:

2.Shipping:

1).20feet container load 20-25tons pipe whose length is under 5.8m

2).40feet container load 20-25tons pipe whose length is under 11.8m

3).We will consider bulk cargo when the goods is more than 200 tons to save freight fee for our customers

1.Any of your questions will be answered within 24 hours!

2.Designed service:Because our products are mainly made-to-order, we can develop new product according to the customer's requirement.

3.Sample service:

1.Hebei province gold mysterious pipe co., ltd is located at Pangkou industrial park, Gaoyang county, Baoding city, Hebei province, China.

2.Certificate:

ISO9001:2008

Q1. Our company is manufacturer or trade company?

Our company is a professional manufacturer and our factory is about 70,000square meter.

Q2. What is MOQ?

Generally, MOQ for every size of pipe is 5tons. However, we can also accept a 1ton trial order in the first business.

Q3. How to ensure the production time?

1).Our production department must comply with production plan strictly.

2).Both merchandiser and related salesman must track the product all the time and inform the customer latest information in time if any change.

Q4. Our price is competitive or not?

We have been adjusting the price of the pipe according to the changes for the price of material and cost of labor in time.

Meanwhile, we will offer more discount to the customer according to the order quantity.