Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A269 TP304 Seamless/Welded Stainless Steel Tube
We are one of the biggest manufactures of stainless steel & duplex steel & alloy steel tubes and pipes in China. With development more than 20 years, we have accumulated a great many clients all around the world and Yuhong products also won the great praise among the customers.
Specifications: ASTM A/ASME SA213/A249/A269/A312/A358 Pipes and Tubes Sizes (Seamless): 1/2" NB - 16" NB
Pipes and Tubes Sizes (ERW): 1/2" NB - 24" NB
Pipes and Tubes Sizes (EFW): 6" NB - 100" NB
Pipes and Tubes Wall Thickness available: Schedule 5S - Schedule XXS (heavier on request)
Pipe and Tubes Other Materials Testing: NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.
Dimensions: All Pipe is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.
A269 TP304 Stainless Steel Seamless Tube Chemical Composition
| SS | 304 | 304N | 304LN |
| Ni | 8 – 11 | 8 – 11 | 8 – 11 |
| Fe | Balance | ||
| Cr | 18 – 20 | 18 – 20 | 18 – 20 |
| C | 0.08 max | 0.08 max | 0.035 max |
| Si | 0.75 max | 0.75 max | 0.75 max |
| Mn | 2 max | 2 max | 2 max |
| P | 0.040 max | 0.040 max | 0.040 max |
| S | 0.030 max | 0.030 max | 0.030 max |
| N | 0.10 – 0.16 | 0.10 – 0.16 | |
A269 TP304 Stainless Steel Seamless Tube Mechanical Properties
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35% |
A269 TP304 Stainless Steel Seamless Tube Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Equivalent Grade
| GRADE | UNS NO | OLD BRITISH | EURONORM | SWEDISH SS | JAPANESE JIS | ||
| BS | EN | NO | NAME | ||||
| 304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
Diameter Tolerance ASTM A269 TP304 Tube
| NPS | ASTM A269 TP304 Tube OD Tolerance | |||
| + | – | |||
| inch | mm | inch | mm | |
| 1/8~1 1 /2 | 1/64(0.015) | 0.4 | 1/32(0.031) | 0.8 |
| > 1 1 /2~4 | 1/32(0.031) | 0.8 | 1/32(0.031) | 0.8 |
| > 4~8 | 1/16(0.062) | 1.6 | 1/32(0.031) | 0.8 |
| > 8~18 | 3/32(0.093) | 2.4 | 1/32(0.031) | 0.8 |
| > 18~26 | 1/8(0.125) | 3.2 | 1/32(0.031) | 0.8 |
| > 26~34 | 5/32(0.156) | 4 | 1/32(0.031) | 0.8 |
| > 34~48 | 3/16(0.187) | 4.8 | 1/32(0.031) | 0.8 |
Wall Thickness Tolerance ASTM A269 TP304 Tube
| NPS | ASTM A269 TP304 Tube Tolerance, % | |
| + | – | |
| 1/8-2 1 /2 | 20 | 12.5 |
| 3~18, t/D≤ 5% | 22.5 | 12.5 |
| 3~18, t/D> 5% | 15 | 12.5 |
| ≥ 20, welded | 17.5 | 12.5 |
| ≥ 20, seamless, t/D≤ 5% | 22.5 | 12.5 |
| ≥ 20, seamless, t/D> 5% | 15 | 12.5 |
A269 TP304 Stainless Steel Seamless Tube Advantages
Application
