High precision 4140 chromium molybdenum steel
- $1.02 /kilogram
- 1 kilogram
- Changzhou Drake International Trade Co., Ltd.
- Jiangsu, China
- Ms Joanna Zhou
| Steel pipe color: | Steel pipes and bars | Supply capacity: | 800 tons of high-precision 4140 chromium-molybdenum steel per month |
| Place of origin: | Jiangsu, China | Surface treatment: | polished, galvanized |
| Steel pipe material tolerance: | Steel pipe +/-0.03mm | Steel pipe technology: | Cold drawn and cold rolled |
| technology: | Cold drawn | Cross-sectional shape: | round |
| Certification: | ISO9001:2008 | Steel pipe shape: | round steel pipe |
| Steel pipe product name: | High precision 4140 chromium molybdenum steel | Steel pipe material: | 4140 Chromium Molybdenum Alloy Steel Pipe |
| Steel pipe tensile strength: | ≥1080(110)(MPa) | port: | Shanghai, Ningbo, Qingdao, Dalian, Tianjin, etc. |
| payment terms: | Steel pipe L/C, D/A, D/P, T/T, Western Union, MoneyGram, Paypal | Special pipes: | thick wall tube |
| Yield strength of steel pipe: | ≥930(95)(MPa) | Outer diameter: | 3 - 80 mm |
| thickness: | 0.5 - 8mm | Packaging details: | 1. Steel pipe wrapped with waterproof paper 2. Steel pipe with several steel strips and linen cloth 3. Steel pipe cap 4. Steel pipe wooden box |
| grade: | 10#-45#,10# | Secondary or not: | non-secondary |
| application: | Drill pipe, fluid pipe, hydraulic pipe, oil pipe, structural pipe | Steel pipe length: | Customer requirements |
| standard: | ASTM, ANSI A213M-2001 | Whether alloy: | It's an alloy |
High precision 4140 chromium molybdenum steel
4140 alloy seamless steel pipe
| chemical composition(%) | Mechanical behavior | |||||||||
| C | silicon | manganese | S | phosphorus | chromium | you | copper | Mo | Yield Strength | tensile strength |
| (σ) | (σb) | |||||||||
| 0.38~0.45 | ≤0.40 | 0.60~0.90 | ≤0.035 | ≤0.035 | 0.90~1.20 | ≤0.40 | / | 0.15~0.30 | ≥930(95)(MPa) | ≥1080(110) |
| (MPa) | ||||||||||
| end shape | Bevel ends, plain ends, disappear or add plastic caps to protect ends According to customer's requirements | |||||||||
| surface | Oil coating, galvanizing, phosphating, etc. | |||||||||
| treat | ||||||||||
| technology | Cold drawn | |||||||||
| application | 1. Pipes for automobiles and machinery | |||||||||
| 2. Petroleum cracking pipe | ||||||||||
| 3. High pressure boiler tube | ||||||||||
| 4. Low and medium pressure fluid transportation pipelines | ||||||||||
| 5. Fertilizer equipment pipelines | ||||||||||
| 6. Heat exchanger pipes | ||||||||||
| deliver goods | 1. Midriff (+C) | No heat treatment is required after the last cold forming. | ||||||||
| situation | 2.BKW（+LC） | After the last heat treatment, a light finishing process (cold drawing) is performed | ||||||||
| 3.BKS (+SR) | After the final cold forming process, the tube is stress-relief annealed. | |||||||||
| 4.GBK（+A） | After the final cold forming process, the tubes are annealed in a controlled atmosphere. | |||||||||
| 5. NBK (+N) | After the final cold forming process, the tube is annealed in a controlled atmosphere at a temperature above the upper transformation point. | |||||||||
| pack | 1. Bundle packaging. | |||||||||
| 2. According to customer requirements, flat end or disappear. | ||||||||||
| 3. Wrap with waterproof paper. | ||||||||||
| 4. There are several steel strips on the burlap. | ||||||||||
5. Pack into heavy-duty three-wall box. | ||||||||||
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Our seamless steel pipes are capable of producing all of the following products:
Fuel injection pipe, oil flow pipe | Automobile and motorcycle shock absorber tubes |
| seat riser | Hydra-cylinder tube |
| Bicycle frame steel pipe | Mechanical steel pipes for automobiles and motor parts |
| Automobile and motorcycle accessories | Generator exhaust pipe |
| high heels steel tube | Wind chime seamless steel pipe |
| Bicycles and bicycle frames | Hydraulic system (oil pipe, motor pipe) |
| Sewing and textile machine parts | Air Conditioning Parts |
| gasoline burner tube | oil pipeline drilling |
| Automobile and motor pipe fittings | Gas spring tube, motor casing |
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| Equipment production: | Equipment testing: | |
| | ||
| 1. Cold drawing machine; | 1. Chemical analysis instruments; | |
| 2. High pressure cleaning platform; | 2. Spectral analysis; | |
| 3. Oxygen-free annealing furnace; | 3. Eddy current detector; | |
| 4. Straightening machine; | 4. Mechanical tester; | |
| 5. Polishing machine. | 5. Rockwell hardness tester. |
1. We use special technology and special techniques during the pickling process to deal with places where folding gaps are easy to form;
2. The process organization is strict, especially the annealing treatment, which has strict technical requirements;
3. In terms of lubrication, we adopt internationally advanced processing technology to strictly control the surface quality of the product to prevent surface cracks.
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1. Anti-rust oil coating (free)2. Capping (charging)
3. Fix with steel bars (free)4. Waterproof paper packaging (free)
5. Packed in sturdy linen cloth (free)6. Wooden box packaging (charged)
