China Wholesale Manufacture Hot Cold Rolled Steel Seamless Machinery Steel Tube Pipe Hollow Bar 1020, 1045, 4140, 4130, 4340, 40cr, 5140, 40mn2, S235, S355 12crmo1V
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 always continually offer you the most conscientious purchaser services, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for China Wholesale Manufacture Hot Cold Rolled Steel Seamless Machinery Steel Tube Pipe Hollow Bar 1020, 1045, 4140, 4130, 4340, 40cr, 5140, 40mn2, S235, S355 12crmo1V, We warmly welcome organization partners from all walks of lifestyle, assume to determine friendly and cooperative business enterprise get hold of along with you and achieve a win-win aim.
We always continually offer you the most conscientious purchaser services, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for China Hollow Bar and Precision Tube, We’ve been fully aware of our customer’s needs. We provide high quality products, competitive prices and the first class service. We would like to establish good business relationships as well as friendship with you in the near future.
|
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 always continually offer you the most conscientious purchaser services, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for China Wholesale Manufacture Hot Cold Rolled Steel Seamless Machinery Steel Tube Pipe Hollow Bar 1020, 1045, 4140, 4130, 4340, 40cr, 5140, 40mn2, S235, S355 12crmo1V, We warmly welcome organization partners from all walks of lifestyle, assume to determine friendly and cooperative business enterprise get hold of along with you and achieve a win-win aim.
China Wholesale China Hollow Bar and Precision Tube, We’ve been fully aware of our customer’s needs. We provide high quality products, competitive prices and the first class service. We would like to establish good business relationships as well as friendship with you in the near future.
