Factory Cheap Hot ASTM 30CrMo 40cr 42CrMo 4130 4140 35CrMo C20 C45 25crmo4 15crmog Alloy Steel Seamless Cold Drawn Precision Steel Tube 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 believe in: Innovation is our soul and spirit. Excellent is our life. Buyer want is our God for Factory Cheap Hot ASTM 30CrMo 40cr 42CrMo 4130 4140 35CrMo C20 C45 25crmo4 15crmog Alloy Steel Seamless Cold Drawn Precision Steel Tube Pipe, Our enterprise has been devoting that “customer first” and committed to helping shoppers expand their business, so that they become the Big Boss !
We believe in: Innovation is our soul and spirit. Excellent is our life. Buyer want is our God for China Precision Steel Pipe and Precision Seamless Steel Pipe, Our company always committed to meet your quality demand, price points and sales target. Warmly welcome you open the boundaries of communication. It is our great pleasure to service you if you need to have a trusted supplier and value information.
|
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 believe in: Innovation is our soul and spirit. Excellent is our life. Buyer want is our God for Factory Cheap Hot ASTM 30CrMo 40cr 42CrMo 4130 4140 35CrMo C20 C45 25crmo4 15crmog Alloy Steel Seamless Cold Drawn Precision Steel Tube Pipe, Our enterprise has been devoting that “customer first” and committed to helping shoppers expand their business, so that they become the Big Boss !
Factory Cheap Hot China Precision Steel Pipe and Precision Seamless Steel Pipe, Our company always committed to meet your quality demand, price points and sales target. Warmly welcome you open the boundaries of communication. It is our great pleasure to service you if you need to have a trusted supplier and value information.
