| Place of Origin: | China |
|---|---|
| Brand Name: | TORICH |
| Certification: | SO9001:2008 ，TS16949 |
| Model Number: | ASTM A789 S31803 2205 |
| Minimum Order Quantity: | 1 ton |
| Price: | negotiable |
| Packaging Details: | In bundles with seaworthy packing， in wooden box |
| Delivery Time: | 45-60days |
| Payment Terms: | T/T, L/C, D/A, D/P, Western Union, MoneyGram |
| Supply Ability: | 6000ton |
| Product Name: | Duplex Stainless Seamless Steel Tubes | Standard: | ASTM A789 |
|---|---|---|---|
| Material: | S31803 2205 | Type: | Seamless |
| Terms Of Trade: | FOB Or CIF | Brand: | TORICH |
| Transportation: | Ocean, Air | Certificate: | ISO9001, TS16949 |
| End Protector: | Plain | MTC: | En10204.3.2B |
| High Light: | stainless tube steel,large diameter stainless steel tube |
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ASTM A789 Duplex Stainless S31803 2205 Seamless Steel Tubes
Size range: O.D.: 5-203.2mm W.T.:0.5-15mm L: max 12000mm
Steel Grade and Chemical Compositions:
| Steel Grade |
C ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Si ≤ |
Ni | Cr | Mo | N | Cu |
| S31803 | 0.030 | 2.0 | 0.030 | 0.020 | 1.0 | 4.50-6.50 | 21.0-23.0 | 2.50-3.50 | 0.08-0.20 | - |
| S31500 | 0.030 | 1.20-2.00 | 0.030 | 0.030 | 1.40-2.00 | 4.25-5.25 | 18.0-19.0 | 2.50-3.00 | 0.05-0.1 | - |
| S32550 | 0.040 | 1.5 | 0.040 | 0.030 | 1.0 | 4.50-6.50 | 24.0-27.0 | 2.90-3.90 | 0.10-0.25 | 1.5-2.5 |
| S31200 | 0.030 | 2.0 | 0.045 | 0.030 | 1.0 | 5.50-6.50 | 24.0-26.0 | 1.20-2.00 | 0.14-0.20 | - |
| S31260 | 0.030 | 1.00 | 0.030 | 0.030 | 0.75 | 5.50-7.50 | 24.0-26.0 | 2.50-3.50 | 0.10-0.30 | 0.20-0.80 |
| S32304 | 0.030 | 2.50 | 0.040 | 0.040 | 1.0 | 3.0-5.5 | 21.5-24.5 | 0.05-0.60 | 0.05-0.20 | 0.05-0.60 |
Manufacture:
Pipes are made by seamless process.
Heat Treatment:
For seamless tubes, as an alternate to final heat treatment in a continuos furnace or batch-type furnace, immediately following hot forming while the temperature of the tubes is not less than the specified minimum solution treatment temperature, tubes may be individually quenched in water or rapidly cooled by other means.
Surface Condition:
All tubes shall be free of excessive mill scale, suitable for inspection. A slight amount of oxidation will not be considered as scale. Any special finish requirements shall be subject to agreement between the manufacturer and the purchaser.
Test and Inspection:
- Mechanical Test
- Tension Test
- Flattening Test
- Hardness Test
- Hydrostatic Test
- Nondestructive Electric Test
