OEM/ODM China API X52/Stkm11/1020/1040/4140/4130/E355/45c/St52/20cr/40cr/20crmo Carbon Steel Metal Material Precision Seamless 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 generally believe that one’s character decides products’ excellent, the details decides products’ good quality ,with all the REALISTIC,EFFICIENT AND INNOVATIVE group spirit for OEM/ODM China API X52/Stkm11/1020/1040/4140/4130/E355/45c/St52/20cr/40cr/20crmo Carbon Steel Metal Material Precision Seamless Steel Tube Pipe, By 10 years effort, we attract customers by competitive price tag and exceptional provider. Moreover, it really is our sincere and sincerity, which assistance us usually be clients’ very first choice.
We generally believe that one’s character decides products’ excellent, the details decides products’ good quality ,with all the REALISTIC,EFFICIENT AND INNOVATIVE group spirit for China Galvanized Pipe and Seamless Pipe, We’ve been persisting in the business essence “Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying items and service. ” Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.
|
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 generally believe that one’s character decides products’ excellent, the details decides products’ good quality ,with all the REALISTIC,EFFICIENT AND INNOVATIVE group spirit for OEM/ODM China API X52/Stkm11/1020/1040/4140/4130/E355/45c/St52/20cr/40cr/20crmo Carbon Steel Metal Material Precision Seamless Steel Tube Pipe, By 10 years effort, we attract customers by competitive price tag and exceptional provider. Moreover, it really is our sincere and sincerity, which assistance us usually be clients’ very first choice.
OEM/ODM China China Galvanized Pipe and Seamless Pipe, We’ve been persisting in the business essence “Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying items and service. ” Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.
