China wholesale Hot Rolled 30CrMo 42CrMo 40cr 42CrMo4 4140 4130 Alloy Seamless 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 often stick to the basic principle “Quality 1st, Prestige Supreme”. We are fully committed to giving our shoppers with competitively priced excellent products and solutions, prompt delivery and skilled provider for China wholesale Hot Rolled 30CrMo 42CrMo 40cr 42CrMo4 4140 4130 Alloy Seamless Steel Pipe, Thanks for taking your valuable time to visit us and look forward to have a nice cooperation with you.
We often stick to the basic principle “Quality 1st, Prestige Supreme”. We are fully committed to giving our shoppers with competitively priced excellent products and solutions, prompt delivery and skilled provider for China 40Cr Seamless Steel Pipes, We will do our utmost to cooperate & satisfied with you relying on top-grade quality and competitive price and best after service ,sincerely look forward to cooperating with you and make achievements in the 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 often stick to the basic principle “Quality 1st, Prestige Supreme”. We are fully committed to giving our shoppers with competitively priced excellent products and solutions, prompt delivery and skilled provider for China wholesale Hot Rolled 30CrMo 42CrMo 40cr 42CrMo4 4140 4130 Alloy Seamless Steel Pipe, Thanks for taking your valuable time to visit us and look forward to have a nice cooperation with you.
China wholesale China Pipes and Steel Pipes, We will do our utmost to cooperate & satisfied with you relying on top-grade quality and competitive price and best after service ,sincerely look forward to cooperating with you and make achievements in the future!
