| 无损检测： | ET， UT， HT， PMI | 标准： | ASTM A213 ，ASME SA213， EN10216-5 |
|---|---|---|---|
| 材料 | SS309S ， TP309S ， 309S， 309H ， TP309H ， SS309H， 1.4833 | 尺寸 | OD:6MM TO 609.6MM ， WT:0.5MM TO 60MM ， LENGTH MAX.:30M/PC |
| 申请： | Boiler， Heat Exchange， Heating | ||
| 强光 | 6000MM Stainless Steel Seamless Tube， 1.4833 Stainless Steel Seamless Tube， EN 10216-5 Stainless Steel Seamless Tube | ||
ASTM A213 / ASME SA213 TP309S / TP309H / EN 10216-5 1.4833 ， Stainless Steel Seamless Tube ， 101.6 X 3.05 X 6000MM
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ASTM A213 ASME SA 213 309S Stainless Steel Tube， EN 10216-5 1.4833 Stainless Steel Tubing is typically used for elevated temperature applications. Its high chromium and nickel content provides comparable corrosion resistance， superior resistance to oxidation， and the retention of a larger fraction of room temperature strength than the common austenitic Alloy 304.
309S Stainless Steel Tube is a highly alloyed austenitic stainless steel used for its excellent oxidation resistance， high temperature strength and creep resistance. The lower nickel content of SX309 improves resistance to sulphur attack at high temperature. It is tough and ductile， and can be readily fabricated and machined.
309S is the low-carbon version of 309， and is recommended for applications where sensitisation， and subsequent corrosion by high temperature gases or condensates during shutdown may pose a problem.309 is manufactured to ASTM A 167 and 309S to ASTM A240 specifications.
309S stainless steel pipe is used often for higher temperature applications. While its oxidation resistance surpasses that of alloy 310， its resistance to corrosion is equivalent to that of alloy 310. Alloy 309 is highly weldable and cold formable， although it does require stronger forming machines and continuously increasing pressure. Typical machining methods are used for stainless steel grade 309， but it is tougher and does tend to harden more quickly. Like 310 Stainless Steel， 309S Stainless Steel has a high chromium and nickel content which grants excellent resistance to aqueous corrosion.
309S Stainless Steel Pipe manufacturer according to ASTM A213 and ASTM A312 ASTM A269 specifications.
309S Stainless Steel Tubing Applications
309 / 309S is used exclusively for its high temperature oxidation resistance. It is common for SX 309， 310 and 321 to be used in the same piece of equipment in the various temperature regions.
ASME SA213 309S Stainless Steel Tubing Chemical Composition
| 等级 | UNS 名称 | C | 锰 | P | S | Si | Cr | 倪 |
| 309H | S30908 | 0.04-0.10 max | 2.00 最大 | 0.045 最大 | 0.030 最大 | 1.00 最大 | 22.0 – 24.0 | 12.0 – 15.0 |
| 309S | S30909 | 0.08 最大值 | 2.00 最大 | 0.045 最大 | 0.030 最大 | 1.00 最大 | 22.0 – 24.0 | 12.0 – 15.0 |
309S Stainless Steel Density Specific Gravity: 7.98 (g/cm³)
309S Stainless Steel Pipe Typical Properties in the Annealed Condition
The properties quoted in this publication are typical of mill production and unless indicated should not be regarded as guaranteed minimum values for specification purposes.
1. 309S Stainless Steel Tubing Mechanical Properties at Room Temperature
| TP309H | TP309H | TP309S | TP309S | |
| TYPICAL | MIN | TYPICAL | MIN | |
| Tensile Stength MPa | 590 | 515 | 570 | 515 |
| Proof Stress (0.2% Offset) MPa | 285 | 205 | 280 | 205 |
| 伸长率 (Percent in 50 mm) | 50 | 35 | 48 | 35 |
| Hardness (Rockwell) | – | 90HRB Max | – | 90 HRB Max |
| Endurance (fatigue) limit MPa | 260 | 260 |
309S Stainless Steel Tubing Creep Data
Stress to develop a creep rate of 1% in the time indicated at the temperature indicated.
| Time | 温度 °C | 550 | 600 | 650 | 700 | 750 | 800 |
| 10 000 h 100 000 h | Stress MPa Stress MPa | 100 75 | 80 50 | 60 30 | 30 20 | 25 10 | 10 5 |
Creep Rupture Stress
| Time | 温度 °C | 600 | 700 | 800 | 900 | 1 000 |
| 1 000 h 10 000 h 100 000 h | Stress MPa Stress MPa Stress MPa | 180 150 100 | 90 50 40 | 35 30 20 | 20 10 5 | 5 2 – |
Maximum Recommended Service
温度
(Oxidising Conditions)
Continuous 1100°C
Intermittent 980°C
309S Stainless Steel Pipe Thermal Processing
1. 309S Stainless Steel Tubing Annealing. Temperature between 1050°C and 1150°C and water quenching. This kind of heat treatment ensures that all carbides are in solution.
2. 309S Stainless Steel Tubing Stress Relieving 250-400°C for 1 hour.
3. 309S Stainless Steel Tubing Hot Working
Initial forging and pressure 1150-1 200°C
Finishing temperature 1000°C
