ASTM A789/ASME SA789 DUPLEX STEEL PIPE/TUBE
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Specifications
ASTM A249 stainless steel tube covers nominal wall thicknesses welded and heavily cold-worked welded pipes made of the following materials
Various grades of austenitic steel for boilers, superheaters, heat exchangers, or condenser pipes.
ASTM A 249/ASME SA249 STAINLESS STEEL TUBE PROVIDED BY YUHONG
ASTM A249/ASME SA249 Stainless Steel Tube
YUHONG GROUP provides the best ASTM SA249/ASMEA249StainlessSteelTubes including welded austenitic alloy steel boiler tube, superheater and heat exchanger tube, and U bending tube.
TP304/TP304L Stainless Steel Tube
TP316/TP316L Stainless Steel Tube
ASTM A249 TUBING FEATURES
ASTM A249/ASME SA249 stainless steel tube has good plasticity, low strength, and hardness. At the same time, ASTM A 249 also has a certain toughness, but it is not ferromagnetic.
ASME SA249/ASMEA249 tubing is not only resistant to oxidative acid medium corrosion, but also resistant to sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, etc. if it contains Mo, Cu, and other elements. If the carbon content of ASME SA249/ASTM A249 tubing is less than 0.03% or contains Ti and Ni, the resistance of thisss pipe tube to intergranular corrosion can be significantly improved.
ASME SA249/ ASTM A249 TUBING SPECIFICATIONS
| ASTM A249 Standard | ASTM A249/ASME SA249 |
| Tube Type | Welded Tube |
| Finishes | Annealing Pickling, Bright Annealing |
| Outside Diameter | 6 Up To 304.8 Mm |
| Thickness | 0.5 Up To 6 Mm |
| Application | Heat Exchanger System |
GRADES OF SPECIFICATION ASTM A249/SA 249
| Grade | Specification |
| Stainless 304/304L, 304/304H | ASTM A249/SA249 |
| Stainless 309S | ASTM A249/SA249 |
| Stainless 310S | ASTM A249/SA249 |
| Stainless 316/316L, 316/316H | ASTM A249/SA249 |
| Stainless 317/317L | ASTM A249/SA249 |
| Stainless 321/321H | ASTM A249/SA249 |
| Stainless 347/347H | ASTM A249/SA249 |
ASME SA249/ ASTM A 249 TUBING SIZE TOLERANCE
| OD | WTH | L | ||
| ASTM A249 | ＜25.4mm | ±0.10mm | ±10.00% | OD＜50.8mm +3.0mm -0mm |
| ≥25.4mm-38.1mm | ±0.15mm | |||
| ≥38.1mm-50.8mm | ±0.20mm | |||
| ≥50.8mm-63.5mm | ±0.25mm | |||
| ≥63.5mm-76.2mm | ±0.30mm | OD≥50.8mm +5.0 -0mm | ||
| ≥76.2mm-101.6mm | ±0.38mm | |||
| ≥101.6mm-190.5mm | +0.38mm -0.64mm | |||
| ≥190.5mm-228.6mm | +0.38mm -1.14mm |
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