ผู้ผลิตท่อสแตนเลส Wenzhou Kaixin ประเทศจีน
As we all know ASTM A312 TP321 ท่อไร้รอยต่อ is one of the most popular austenitic stainless steel pipe for high-temperature and general corrosive service. It can be used in many industries like oil and gas, water, mineral slurry transmission and structural purposes.
A312 TP321 Seamless Pipe often referred to as a marine grade stainless steel because of its effective resistance to chloride corrosion in comparison to other grades. It is an austenitic grade pipe with the addition of 2-3% molybdenum which further improves corrosion resistance.
321 Stainless Steel Seamless Pipes Specification
| ข้อกำหนด | มาตรฐาน ASTM A312 / SA 312 |
| ขนาด | มาตรฐาน ASTM, ASME และ API |
| ขนาด | 1/8″NB TO 30″NB IN |
| ไร้รอยต่อ 321 Pipes | 1/2″ หมายเหตุ – 16″ หมายเหตุ |
| กำหนดการ | SCH20, SCH30, SCH40, STD, SCH80, Xs, SCH60, SCH80, SCH120, SCH140, SCH160, xxs |
| พิมพ์ | astm a 312 TP 321 Seamless Pipes |
| มีความเชี่ยวชาญ | ขนาดเส้นผ่าศูนย์กลางขนาดใหญ่ |
| ความยาว | Single Random, Double Random & Cut Length. |
| รูปร่าง | Round, Square, Rectangular, Hydraulic Etc |
| End | Plain End, Beveled End, Treaded |
สแตนเลส 321 Seamless Pipe Equivalent
| ระดับ | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | เลขที่ | ชื่อ | ||||
| 321 | S32100 | 321S31 | 58ข, 58ค | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
มาตรฐาน ASTM A312 321 Chemical Composition
| ค | มน | และ | ป | ส | Cr | ใน |
| 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-12.0 |
มาตรฐาน ASTM A312 321 คุณสมบัติทางกล
| Tensile Strength | Yield Strength | การยืดตัว |
| 515 (MPA) นาที | 205 (MPA) นาที | 40 (% ) นาที |
Physical Properties of ASTM A312 TP 321 ท่อไร้รอยต่อสแตนเลส
| ระดับ | ความหนาแน่น (kg/m3) | Elastic Modulus (เกรดเฉลี่ย) | Mean Coefficient of Thermal Expansion (m/m/0C) | การนำความร้อน (W/m.K) | |||
| 0-1000ค | 0-3150ค | 0-5380ค | at 1000C | at 5000C | |||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 |
Stainless Steel ASTM A312 TP321 Pipe Sizes
| NPS | OD | SCH 5S | SCH 10S | SCH 40S | กำหนด 80S |
| 1/4 | 13.72 | - | 1.65 | 2.24 | 3.02 |
| 3/8 | 17.15 | - | 1.65 | 2.31 | 3.2 |
| 1/2 | 21.34 | 1.65 | 2.11 | 2.77 | 3.73 |
| 3/4 | 26.67 | 1.65 | 2.11 | 2.87 | 3.91 |
| 1 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 |
| 1.25 | 42.16 | 1.65 | 2.77 | 3.56 | 4.85 |
| 1.5 | 48.26 | 1.65 | 2.77 | 3.68 | 5.08 |
| 2 | 60.33 | 1.65 | 2.77 | 3.91 | 5.54 |
| 2.5 | 73.03 | 2.11 | 3.05 | 5.16 | 7.01 |
| 3 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 |
| 3.5 | 101.6 | 2.11 | 3.05 | 5.74 | 8.08 |
| 4 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 |
| 5 | 141.3 | 2.77 | 3.4 | 6.55 | 9.53 |
| 6 | 168.28 | 2.77 | 3.4 | 7.11 | 10.97 |
| 8 | 219.08 | 2.77 | 3.76 | 8.18 | 12.7 |
| 10 | 273.05 | 3.4 | 4.19 | 9.27 | 12.7 |
| 12 | 323.85 | 3.96 | 4.57 | 9.53 | 12.7 |
| 14 | 355.6 | 3.96 | 4.78 | 9.53 | 12.7 |
| 16 | 406.4 | 4.19 | 4.78 | 9.53 | 12.7 |
| 18 | 457.2 | 4.19 | 4.78 | 9.53 | 12.7 |
| 20 | 508 | 4.78 | 5.54 | 9.53 | 12.7 |
| 22 | 558.8 | 4.78 | 5.54 | - | - |
| 24 | 609.6 | 5.54 | 6.35 | 9.53 | 12.7 |
| 26 | 660.4 | - | - | - | - |
| 28 | 711.2 | - | - | - | - |
| 30 | 762 | 6.35 | 7.92 | - | - |
ASTM A312 SS 321 Seamless Pipe Tolerances
| NPS | ASTM A312 TP321 OD Tolerance | |||
| + | - | |||
| นิ้ว | มม | นิ้ว | มม | |
| 1/8~1 1 /2 > 1 1 /2~4 > 4~8 > 8~18 > 18~26 > 26~34 > 34~48 | 1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) | 0.4 0.8 1.6 2.4 3.2 4.0 4.8 | 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) | 0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
Wall Thickness Tolerance of ASTM A312 TP321 SS Seamless Pipe
| NPS | ASTM A312 TP321 WT 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，รอย | 17.5 | 12.5 |
| ≥20,seamless,T/D≤5% | 22.5 | 12.5 |
| ≥20,seamless,T/D＞5% | 15 | 12.5 |
321 Stainless Steel Pipe pressure rating
| Pipe Size (inches) | Pipe Schedule | อุณหภูมิ (°F) | ||||||||
| 100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
| 1″ | 40 | 3048 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
| 1″ | 80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 |
| 1″ | 160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 |
| 1.5″ | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
| 1.5″ | 80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 |
| 1.5″ | 160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 |
| 2″ | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
| 2″ | 80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 |
| 2″ | 160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 |
| 3″ | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
| 3″ | 80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 |
| 3″ | 160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2304 | 2280 |
| 4″ | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
| 4″ | 80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 |
| 4″ | 160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 |
| 5″ | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
| 5″ | 80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 |
| 5″ | 160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 |
| 6″ | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
| 6″ | 80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 |
| 6″ | 160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 |
| 8″ | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
| 8″ | 80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 |
| 8″ | 160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 |
| 10″ | 40 | 974 | 840 | 755 | 694 | 945 | 615 | 596 | 584 | 578 |
| 10″ | 80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 956 |
| 10″ | 160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 |
Stainless Steel TP321 Seamless Pipes Application
ASTM A312 TP321 Stainless steel seamless pipe are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of A312 / SA312 Austenitic Stainless Steel 321 Piping through a worldwide network of stock-keeping branches. These Seamless Pipe is use in various industries like :
สแตนเลส 321 Seamless Pipes uses in Water Supply Systems
Austenitic SS TP321 Seamless Pipes uses in Power Plant
TP321 Steel Seamless Piping uses in Paper & อุตสาหกรรมเยื่อกระดาษ
เอสเอส 321 Seamless Pipes uses in General Purpose Applications
สแตนเลส 321 Seamless Pipes uses in Fabrication Industry
Austenitic steel 321 Seamless Pipes uses in Food Processing Industry
Stainless Steel TP321 Seamless Pipes uses in Structural Pipe
ASTM A312 Stainless Steel Pipes uses in Oil and Gas Pipeline
ASME SA312 Seamless Piping uses in Chemical Industry
SUS 321 Stainless Steel Seamless Pipes uses in Plumbing
เอไอเอส 321 Seamless Stainless Steel Pipes uses in Heating
