100% Original AISI 4140 Seamless Steel Tube 4140 Seamless 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 depend on sturdy technical force and continually create sophisticated technologies to meet the demand of 100% Original AISI 4140 Seamless Steel Tube 4140 Seamless Pipe, We warmly welcome prospects, organization associations and mates from everywhere in the earth to get in touch with us and request cooperation for mutual benefits.
We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of China AISI 4140 Seamless Steel Tube and 4140 Seamless Pipe, Our products are exported worldwide. Our customers are always satisfied with our reliable quality, customer-oriented services and competitive prices. Our mission is “to continue to earn your loyalty by dedicating our efforts to the constant improvement of our solutions and services in order to ensure the satisfaction of our end-users, customers, employees, suppliers and the worldwide communities in which we cooperate”.
|
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 depend on sturdy technical force and continually create sophisticated technologies to meet the demand of 100% Original AISI 4140 Seamless Steel Tube 4140 Seamless Pipe, We warmly welcome prospects, organization associations and mates from everywhere in the earth to get in touch with us and request cooperation for mutual benefits.
100% Original China AISI 4140 Seamless Steel Tube and 4140 Seamless Pipe, Our products are exported worldwide. Our customers are always satisfied with our reliable quality, customer-oriented services and competitive prices. Our mission is “to continue to earn your loyalty by dedicating our efforts to the constant improvement of our solutions and services in order to ensure the satisfaction of our end-users, customers, employees, suppliers and the worldwide communities in which we cooperate”.
