Petrochemical Industry Heavy Wall Seamless Pipe / Seamless Mechanical Tubing
| Product Name | Seamless Cold Drawn Thick Wall Stainless Steel Tube for Petrochemical Industry |
| Standard | ASTM A312 Seamless Welded and Heavily Cold Worked Austentic Stainless Steel Pipes |
| Size | OD:304.8-609.6mm WT:1.65-7.92mm Length :max12m(OD>219mm), max14m(OD<219m) |
| Type | Seamless |
| Material | 304, 316, 316Ti |
| Application | Petrochemical Industry |
Chemical Requirements
| Element | 304 | 304L | 316 | 316L | 316Ti |
| C | ≤0.08 | ≤0.030 | ≤0.08 | ≤0.030 | ≤0.08 |
| Mn | ≤2.00 | ≤2.00 | ≤2.00 | ≤2.00 | ≤2.00 |
| P | ≤0.045 | ≤0.045 | ≤0.045 | ≤0.045 | ≤0.045 |
| S | ≤0.030 | ≤0.030 | ≤0.030 | ≤0.030 | ≤0.030 |
| Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 |
| Cr | 18.0-20.0 | 18.0-20.0 | 16.0-18.0 | 16.0-18.0 | 16.0-18.0 |
| Ni | 8.0-11.0 | 8.0-12.0 | 10.0-14.0 | 10.0-14.0 | 10.0-14.0 |
| Mo | / | / | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 |
| Other | | | | | Ti5X(C+N)~0.7 N≤0.10 |
Featured Products
| 168.3mm*2.77mm | 219.1mm*3.76mm | 273.1mm*4.19mm | 323.9mm*4.57mm | 355.6mm*4.78mm |
| 406.4mm*4.78mm | 457.2mm*4.78mm | 508mm*5.54mm | 558.8mm*5.54mm | 609.6mm*6.35mm |
| 660.4mm*7.92mm | 711.2mm*7.92mm | 762mm*7.92mm | 812.8mm*7.92mm | |
The Stainless Steel Pipes of the above specifications after solution treatment, no deformation will occur. The condition od delivery is: soft; The products are mainly used in Petrochemical, Biological, Papermaking, Shipbuilding Seawater Desalting and Hydroelectric & water coservancy projects
Process Flow
Billets →Inspection →Peeling →Heating →Punching(Centering) →Cutting →Piercing →Inspection →Lubricating and Drying →Solution Annealed →Degreasing →Cold Drawing/Rolling →Straightening →Cutting →Pickling/Passiviting →Packing →Marking →Final Inspection →Shipping
QUALITY CONTROL:
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 and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
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Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us
TORICH ASTM A312 Seamless Cold Drawn Thick Wall Stainless Steel Tube for Petrochemical Industry
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