Q345 20Cr 40Cr 20CrMo 35CrMo 42CrMo Hollow Round Tubes Seamless Carbon Steel Pipe
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.
We normally believe that one’s character decides products’ quality, the details decides products’ high-quality ,while using the REALISTIC,EFFICIENT AND INNOVATIVE staff spirit for Q345 20Cr 40Cr 20CrMo 35CrMo 42CrMo Hollow Round Tubes Seamless Carbon Steel Pipe, Adhering on the small business philosophy of ‘customer 1st, forge ahead’, we sincerely welcome clientele from at your house and overseas to cooperate with us.
We normally believe that one’s character decides products’ quality, the details decides products’ high-quality ,while using the REALISTIC,EFFICIENT AND INNOVATIVE staff spirit for China 20Cr 40Cr Carbon Steel Pipe, In the increasingly competitive market, With sincere service high quality products and well-deserved reputation, we always offer customers support on products and techniques to achieve long-term cooperation. Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.
|
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 receivedWe normally believe that one’s character decides products’ quality, the details decides products’ high-quality ,while using the REALISTIC,EFFICIENT AND INNOVATIVE staff spirit for OEM Manufacturer Q345 20cr 40cr 20crmo 35CrMo 42CrMo Sch40 Hollow Round Square Tubes Seamless Carbon Steel Pipe, Adhering on the small business philosophy of ‘customer 1st, forge ahead’, we sincerely welcome clientele from at your house and overseas to cooperate with us.
OEM Manufacturer China A53 A36 Galvanized Pipe and Carbon Steel Pipe, In the increasingly competitive market, With sincere service high quality products and well-deserved reputation, we always offer customers support on products and techniques to achieve long-term cooperation. Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.
