Stainless steel pipes are used in transferring of liquids in high temperature applications. The properties of stainless steel pipes are resistance to corrosion, high ductility, formability and low maintenance. Stainless steel pipes are typically classified or distinguished based on their end use function, environmental conditions, types and grades.
Duplex S31803 / S32205 Chemical Composition and Mechanical properties:
| Grade |
C % |
Mn % |
Si % |
P % |
S % |
Cr % |
Mo % |
Ni % |
N % |
Fe % |
| S31803 |
0.030 max |
2.00 max |
1.00 max |
0.030 max |
0.020 max |
22.0 – 23.0 |
3.0 – 3.5 |
4.50 – 6.50 |
0.14 – 0.20 |
63.72 min |
| S32205 |
0.030 max |
2.00 max |
1.00 max |
0.030 max |
0.020 max |
21.0 – 23.0 |
2.50 – 3.50 |
4.50 – 6.50 |
0.08 – 0.20 |
63.54 min |
| Element |
Density (g/cm 3) |
Density (lb/in 3) |
Melting Point (°C) |
Melting Point (°F) |
| S31803 / S32205 |
7.805 |
0.285 |
1420 – 1465 |
2588 – 2669 |
SPECIFICATIONS:
| Range : |
6NB to 1200NB |
| Outer Diameter : |
1/8″ NPS to 12″ NPS |
| Thickness : |
0.6 mm to 12.7 mm |
| Schedules : |
SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. |
| Length : |
Single Random, Double Random & Cut Length |
| Types : |
Round, Square, Rectangle, Hydraulic, Honed Tubes |
| End : |
Plain End, Beveled End |
Classifications of stainless steel seamless Pipes:
| Product Name |
Executive Standard |
Dimension |
Steel Code / Steel Grade |
| Seamless Austenitic Stainless Steel Pipes |
ASTM A312/A312M, ASME SA312/SA312M |
OD: 1/8″~20″ ; WT: SCH5S~SCH80S |
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Austenitic Stainless Steel Tubing for General Service |
ASTM A269, ASME SA269 |
OD: 6.0~50.8mm; WT: 0.8~10.0mm |
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Austenitic Alloy-Steel Boiler, Super Heater and Heat-Exchanger Tubes |
ASTM A213/A213M, ASME SA213/SA213M |
OD: 6.0~50.8mm; WT: 0.8~10.0mm |
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
| Seamless Duplex Stainless Steel Tubing for General Service |
ASTM A789 / A789M |
OD: 19.0~60.5mm; WT: 1.2~5.0mm |
S31803, S32205, S32750 |
| Seamless Duplex Stainless Steel Pipes |
ASTM A790 / A790M |
OD: 3/4″~10″;WT: SCH5S~SCH80S |
S31803, S32205, S32750 |
| Seamless Stainless Steel Mechanical Tubing |
ASTM A511 |
OD: 6.0~50.8mm; WT: 1.8~10.0mm |
MT304, MT304L, MT304H, MT310, MT310S, MT316, MT316L, MT317, MT317L, MT321, MT321H, MT347 |
| Seamless Stainless Steel Tubes for Pressure Purposes |
EN 10216, DIN 17456, 17458 |
OD: 6.0~530.0mm; WT: 0.8~34.0mm |
1.4301, 1.4307, 1.4541, 1.4401, 1.4404, 1.4571, 1.4878, 1.4432, 1.4462 |
ALLIN METAL Quality Assurance (including both Destructive and Non-Destructive) :
- Visual Dimension Test
- Large-scale test
- Flaring Test
- Hardness test
- Water-Jet Test
- Penetrant Test
- X-ray test
- Impact analysis
- Mechanical examining like tensile, Elongation and reduction of area.
- Chemical examination analysis
- Pitting protection test
- Intergranular Corrosion Testing
- Hydrostatic analysis
- Metallography Experimental Test
- Eddy current examining
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