20Cr Alloy Seamless Steel Pipes

Short Description:

20Cr alloy steel pipe is a kind of high-precision steel pipe material after cold drawing or hot rolling treatment. Because the inner and outer walls of precision steel pipes have no oxide layer, no leakage under high pressure, high precision, high finish, no deformation during cold bending, flaring, flattening and no cracks, etc., 20cr precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemical, electric power, ships, aerospace, bearings, and pneumatic components.


Product Detail

Product Tags

Chemical Composition(%)

Grade

C

Si

Mn

Cr

Mo

Ni

20Cr

0.18-0.24

0.17-0.37

0.50-0.80

0.70-1.00

/

/

Mechanical Properties

Grade

Tensile Strength(MPa)

Yield Strength(MPa)

% Elongation in 2 in.(50mm) min

20Cr

785-835

490-540

10

20Cr alloy steel pipe can improve the material utilization rate, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jack sleeves, etc.

20Cr alloy steel pipe is also an indispensable material for various conventional weapons, and the barrel and barrel of the gun are made of steel pipe.

Quality Control

1. Incoming Raw Material Inspection

2. Raw Material Segregation to avoid steel grade mix-up

3. Heating and Hammering End for Cold Drawing

4. Cold Drawing or Cold Rolling, On line inspection

5. Heat Treatment

6. Straightening/Cutting to specified length/Finished Measuring Inspection

7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.

8. Packing and Stocking.

100% Eddy Current Testing.

100% Size Tolerance Checking.

100% Tube surface checking to avoid surface defects

Delivery Condition

Hot Rolled, Annealed, Normalized, Quenched and Tempered

Packaging

1. Bundle packing

2. Beveled end or plain end or varnished as per buyer's required

3. Marking: as per customer's requests

4. Painting varnish coating on the pipe

5. Plastic caps at ends

Delivery time

With 15-30 days after full payment received


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