Quality Inspection for 40Cr Alloy Precision Seamless Steel Tubes
Short Description:
40Cr steel Pipe is a kind of Chinese GB standard alloy steel for engineering and machinery purpose, and one of the most widely used steel grades.
After quenching and tempering treatment, 40Cr steel pipe has good comprehensive mechanical properties, low temperature impact toughness, low notch sensitivity, good hardenability, and high fatigue strength in cold oil. When water cooling, the complicated shape of the parts is prone to cracks, the cold bending plasticity is medium, and the cutting workability after normalizing is good, but the weldability is poor, should be preheated before welding, and is generally used in the state of quenching and tempering.
Innovation, top quality and reliability are the core values of our company. These principles today extra than ever form the basis of our success as an internationally active mid-size company for Quality Inspection for 40Cr Alloy Precision Seamless Steel Tubes, We’re always looking forward to forming successful business relationships with new purchasers round the earth.
Innovation, top quality and reliability are the core values of our company. These principles today extra than ever form the basis of our success as an internationally active mid-size company for China 40Cr Alloy Seamless Steel Pipe, Welcome to visit our company, factory and our showroom where displays various hair merchandise that will meet your expectation. Meanwhile, it is convenient to visit our website, and our sales staff will try their best to deliver you the best service. Please contact us if you have to have more information. Our aim is to help customers realize their goals. We have been making great efforts to achieve this win-win situation.
|
Grade |
C |
Si |
Mn |
Cr |
Mo |
Ni |
|
40Cr |
0.37-0.44 |
0.17-0.37 |
0.40-0.70 |
0.70-1.00 |
/ |
/ |
|
Grade |
Tensile Strength(MPa) |
Yield Strength(MPa) |
% Elongation in 2 in.(50mm) min |
|
40Cr |
900 min |
660 min |
12 |
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
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 receivedInnovation, top quality and reliability are the core values of our company. These principles today extra than ever form the basis of our success as an internationally active mid-size company.
Quality Inspection for 40Cr Alloy Precision Seamless Steel Tubes
We’re always looking forward to forming successful business relationships with new purchasers round the earth.
China 40Cr Alloy Seamless Steel Pipe
Welcome to visit our company, factory and our showroom where displays various hair merchandise that will meet your expectation. Meanwhile, it is convenient to visit our website, and our sales staff will try their best to deliver you the best service. Please contact us if you have to have more information. Our aim is to help customers realize their goals. We have been making great efforts to achieve this win-win situation.
