Views: 89 Author: Site Editor Publish Time: 2024-01-24 Origin: Site
ASTM A335 is a common material for American standard alloy steel seamless pipes, which are widely used industry such as petroleum, chemical, power, and nuclear energy. It's material contains alloy elements such as Cr, Ni, and Mo, which can improve the high-temperature and high-pressure resistance, corrosion resistance, and mechanical properties of steel pipes. It can be widely used in complex pipeline environments with high temperature and pressure. The ASTM A335 alloy seamless pipe quality standard includes standard requirements such as chemical composition, mechanical properties, heat treatment methods, and how to inspection, ensuring that the performance of alloy seamless pipes produced according to this standard can meet the requirements of pipeline systems and environments.
The Types Of Alloy Material
ASTM A335 alloy seamless pipe includes various types of alloy materials such as P5/P11/P12/P22/P91, and the required chemical composition and mechanical properties in the standard are also different. In practical pipeline engineering applications, suitable materials can be selected based on different design requirements and environmental characteristics.
Chemical Composition
| Grade | UNS DesignationA | TABLE 1 Chemical Rquirements | ||||||
| Composition,% | ||||||||
| Carbon | Man- ganese | Phos- phonus, max | Sufur max | STicon | Chromium | Molybde- num | ||
| P1 | K11522 | 0.10-0.20 | 0.30-0.80 | 0.025 | 0.025 | 0.10-0.50 | 0.44-0.65 | |
| P2 | K11547 | 0.10-0.20 | 0.30-0.61 | 0.025 | 0.025 | 0.10-0.30 | 0.50-0.81 | 0.44-0.65 |
| P5 | K41545 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 |
| P5b | K51545 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 1.00-2.00 | 4.00-6.00 | 0.45-0.65 |
| P5c | K41245 | 0.12 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 |
| P9 | K90941 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P11 | K11597 | 005-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P12 | K11562 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.50 max | 0.80-1.25 | 0.44-0.65 |
| P15 | K11578 | 005-0.15 | 0.30-0.60 | 0.025 | 0.025 | 1.15-1.65 | 0.44-0.65 | |
| P21 | K31545 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 2.65-3.35 | 0.80-1.06 |
| P22 | K21590 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 |
| P23 | K40712 | 0.04-0.10 | 0.10-0.60 | 0.030 max | 0.010 max | 0.50 max | 1.90-2.60 | 0.05-0.30 |
| P24 | K30736 | 0.05-0.10 | 0.30-0.70 | 0.020 | 0.010 | 0.15-0.45 | 2.20-2.60 | 0.90-1.10 |
| P36 | K21001 | 0.10-0.17 | 0.80-120 | 0.030 max | 0.025max | 0.25-0.50 | 0.30 max | 0.25-0.50 |
| P91 Type1 | K91560 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 |
| P91 Type 2 | K91560 | |||||||
| Heat | 0.08-0.12 | 0.30-0.50D | 0.020D | 0.005D | 0.20-0.40D | 8.00-9.50 | 0.85-1.05 | |
| Product | 0.07-0.13 | 0.80-1.05 | ||||||
Mechanical Properties
| TABLE 3 Tensile Requirements | |||||||||||||||
| Grade | |||||||||||||||
| P1,P2 | P12 | P23 | P24 | P91 Type 1 and Type 2 | P92,P93, P911, P36 Class 1 | P921 | P115 | P122 | P128 | P36 Class 2 | All Others | ||||
| Tensile strength, min: | |||||||||||||||
| ksi | 55 | 60 | 74 | 85 | 85 | 90 | 109 | 90 | 90 | 94 | 95.5 | 60 | |||
| MPa | 380 | 415 | 510 | 585 | 585 | 620 | 750 | 620 | 620 | 650 | 660 | 415 | |||
| Yield strength, min: | |||||||||||||||
| ksi | 30 | 32 | 58 | 60 | 60 | 64 | 84 | 65 | 58 | 71 | 66.5 | 30 | |||
| MPa | 205 | 220 | 400 | 415 | 415 | 440 | 580 | 450 | 400 | 490 | 460 | 205 | |||
| MATERIAL | ASTM A335 P5 | ASTM A335 P9 | ASTM A335 P11 | ASTM A335 P12 | ASTM A335 P22 | ASTM A335 P91 |
| T.S (MPA) | 415 min | 415 min | 415 min | 415 min | 415 min | 620 min |
| Y.S (MPA) | 205 min | 205 min | 205 min | 205 min | 205 min | 415 min |
| EL % | 30 min | 30 min | 30 min | 30 min | 30 min | 20 min |
Heat Treatment
| TABLE 2 Heat Treatment RequirementsA | ||||
| Grade | Heat Treat Type | Normalizing Temperature, min or range F[C] | Cooling Media | Subcritical Annealing or Tempering Temperature min or range F[C] |
| P1 | full or isothemal anneal or | |||
| normalize and temper or | 1200 [650] | |||
| subcritical anneal | 1200-1300 [650-705] | |||
| P2 | fullor sothemal anneal or | |||
| normalize and temper or | 1250 [675] | |||
| subcritical anneal | 1200-1300 [650-705] | |||
| P5 | fullor isothemal anneal or | |||
| normalize and temper | 1250[675] | |||
| P5b | full or isothemal anneal or | |||
| normalize and temper | 1250 [675] | |||
| P5c | subcritical anneal | 1325-1375[715-745] | ||
| P9 | fullor isothemalanneal or | |||
| normalize and temper | 1250[675] | |||
| P11 | fullor isothermal anneal or | |||
| normalize and temper | 1200 [650] | |||
| P12 | fullor isothemal anneal or normalize and temperor | 1200 [650] | ||
| subcritical anneal | 1200-1300 [650-705] | |||
| P15 | fullor isothemal anneal or | |||
| normalize and temper | 1200[650] | |||
| P21 | fullor isothemal anneal or | |||
| normalize and temper | 1250 [675] | |||
| P22 | full or isothemal anneal or | |||
| normalizeand temper | 1250[675] | |||
| P23 | normalizeand temper | 1900-1975[1040-1080] | air or accelerated cooling | 1350-1470[730-800] |
| P24 | normalizeand temper | 1800-1870 [980-1020] | airor accelerated cooling | 1350-1420[730-770] |
| P36 | normalize and temper | 1650 [900] | 1100 [595] | |
| P91 Type 1 and Type2 P92 | normalize and temper or | 1900-1975[1040-1080] | 1350-1470[730-800] | |
| quench and temper | 1900-1975[1040-1080] | 1350-1470[730-800] | ||
| normalize and temper | 1900-1975[1040-1080] | D | 1350-1470[730-800] | |
| P93 | normalizeand temper | 1960-2140 [1070-1170] | 1380-1455[750-790] | |
| P115 | normalize and temper | 1920-2010 [1050-1100] | o | 1380-1455[750-790] |
| P122 | normalizeand temper | 1900-1975[1040-1080] | 1350-1470[730-800] | |
| P128 | normalize and temper | 1975-2140 [1080-1170] | air | 1400-1470[760-800] |
| P911 | normalizeand temper | 1900-1975[1040-1080] | D | 1365-1435[740-780] |
| P921 | normalize and temper | 1670-1740 [910-950] | air | 1350-1420[730-770] |
Dimension Of Alloy Seamless Pipe
ASTM A335 alloy seamless steel pipe with an outer diameter size range of 1/8 inch to 48 inches; Seamless alloy pipes are commonly used in industrial applications in high-temperature and high-pressure environments, therefore thick walled pipes are commonly seen in the market; The length of alloy seamless steel pipes is divided into fixed length and loose length, with fixed length generally being 11.8 meters or 12 meters per unit length; The production standards must comply with the American standard ASME B36.10.
| Processing Method: | Seamless and Welded |
| Size Range | 1/8” - 48” / DN6 - 1200 |
| Thickness Schedule | SCH 20- SCH 160, XXS |
| Length | 6m or 12 m or Random |
| Standard | ASME B36.10 |
| Surface Treatment | Blasting and Painting, Epoxy Powder FBE, 2PE, 3PE Coating |
| Material Grade | ASTM A335 P11 / P12 / P 5 / P9 / P91 / P92, A213 T11 / T12 / T22 / T5 / T9 / T91 / T92. 15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5 |
Wall Thickness（1/8inch-4inch）
| DN | NPS | OD | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH60 | XS | SCH80 |
| 6 | 1/8 | 10.3 | 1.24 | - | 1.45 | 1.73 | 1.73 | - | 2.41 | 2.41 |
| 8 | 1/4 | 13.7 | 1.65 | - | 1.85 | 2.24 | 2.24 | - | 3.02 | 3.02 |
| 10 | 3/8 | 17.1 | 1.65 | - | 1.85 | 2.31 | 2.31 | - | 3.20 | 3.20 |
| 15 | 1/2 | 21.3 | 2.11 | - | 2.41 | 2.77 | 2.77 | - | 3.73 | 3.73 |
| 20 | 3/4 | 26.7 | 2.11 | - | 2.41 | 2.87 | 2.87 | - | 3.91 | 3.91 |
| 25 | 1 | 33.4 | 2.77 | - | 2.90 | 3.38 | 3.38 | - | 4.55 | 4.55 |
| 32 | 11/4 | 42.2 | 2.77 | - | 2.97 | 3.56 | 3.56 | - | 4.85 | 4.85 |
| 40 | 11/2 | 48.3 | 2.77 | - | 3.18 | 3.68 | 3.68 | - | 5.08 | 5.08 |
| 50 | 2 | 60.3 | 2.77 | - | 3.18 | 3.91 | 3.91 | - | 5.54 | 5.54 |
| 65 | 21/2 | 73.0 | 3.05 | - | 4.78 | 5.16 | 5.16 | - | 7.01 | 7.01 |
| 80 | 3 | 88.9 | 3.05 | - | 4.78 | 5.49 | 5.49 | - | 7.62 | 7.62 |
| 90 | 31/2 | 101.6 | 3.05 | - | 4.78 | 5.74 | 5.74 | - | 8.08 | 8.08 |
| 100 | 4 | 114.37 | 3.05 | - | 4.78 | 6.02 | 6.02 | - | 8.56 | 8.56 |
Weight Chart
Referenced Weight Lists (ASME B 3 6 .1 0 M ) Welded and Seam less Steel Pipe(ASME B36.10M) | kg | ||||||||||||||
Nominal Size | OD | kg/m | |||||||||||||
DN | NPS | OD | Sch10 | Sch20 | Sch30 | STD | Sch40 | Sch60 | XS | Sch80 | Sch100 | Sch120 | Sch140 | Sch160 | XXS |
6 | 1/8 | 10.3 | 0.28 | 0.32 | 0.37 | 0.37 | 0.47 | 0.47 | |||||||
8 | 1/4 | 13.7 | 0.49 | 0.54 | 0.63 | 0.63 | 0.80 | 0.80 | |||||||
10 | 3/8 | 17.1 | 0.63 | 0.70 | 0.84 | 0.84 | 1.10 | 1.10 | |||||||
15 | 1/2 | 21.3 | 1.00 | 1.12 | 1.27 | 1.27 | 1.62 | 1.62 | 1.95 | 2.55 | |||||
20 | 3/4 | 26.7 | 1.28 | 1.44 | 1.69 | 1.69 | 2.20 | 2.20 | 1.90 | 3.64 | |||||
25 | 1 | 33.4 | 2.09 | 2.18 | 2.50 | 2.50 | 3.24 | 3.24 | 4.24 | 5.45 | |||||
32 | 1 1/4 | 42.2 | 2.70 | -
-
- | 2.87 | 3.39 | 3.39 | 4.47 | 4.47 | 5.16 | 7.77 | ||||
40 | 1 1/2 | 48.3 | 3.11 | 3.53 | 4.05 | 4.05 | 5.41 | 5.41 | 7.25 | 9.56 | |||||
50 | 2 | 60.3 | 3.93 | 4.48 | 5.44 | 5.44 | 7.48 | 7.48 | 11.11 | 13.44 | |||||
65 | 2 1/2 | 73.0 | 5.26 | 8.04 | 8.63 | 8.63 | 11.41 | 11.41 | 14.92 | 20.39 | |||||
80 | 3 | 88.9 | 6.45 | 9.92 | 11.29 | 11.29 | 15.72 | 15.72 | 21.35 | 27.68 | |||||
90 | 3 1/2 | 101.6 | 7.40 | 11.41 | 13.57 | 13.57 | 18.63 | 18.63 | |||||||
100 | 4 | 114.3 | 8.36 | 12.91 | 16.07 | 16.07 | 22.32 | 22.32 | 28.32 | 33.54 | 41.03 | ||||
125 | 5 | 141.3 | 11.57 | 21.77 | 21.77 | 30.97 | 30.97 | 40.28 | 49.11 | 57.43 | |||||
150 | 6 | 168.3 | 13.48 | 28.26 | 28.26 | 42.56 | 42.56 | 54.20 | 67.56 | 79.22 | |||||
200 | 8 | 219.1 | 19.96 | 33.31 | 36.81 | 42.55 | 42.55 | 53.08 | 64.64 | 64.64 | 75.92 | 90.44 | 100.9 | 111.3 | 107.9 |
250 | 10 | 273.0 | 27.78 | 41.77 | 51.03 | 60.31 | 60.31 | 81.55 | 81.55 | 96.01 | 114.8 | 133.1 | 155.2 | 172.3 | 155.2 |
300 | 12 | 323.9 | 36.00 | 49.73 | 65.20 | 73.88 | 79.73 | 109.0 | 97.46 | 132.1 | 159.9 | 187.0 | 208.1 | 238.8 | 187.0 |
350 | 14 | 355.6 | 54.69 | 67.90 | 81.33 | 81.33 | 94.55 | 126.7 | 107.4 | 158.1 | 195.0 | 224.7 | 253.6 | 281.7 | |
400 | 16 | 406.4 | 62.64 | 77.83 | 93.27 | 93.27 | 123.3 | 160.1 | 123.3 | 203.54 | 245.6 | 286.7 | 333.2 | 365.4 | |
450 | 18 | 457.0 | 70.57 | 87.71 | 122.4 | 105.2 | .155.8 | 205.7 | 139.2 | 254.6 | 309.6 | 363.6 | 408.3 | 459.4 | |
500 | 20 | 508 | 78.55 | 117.2 | 155.1 | 117.2 | 183.4 | 247.8 | 155.1 | 311.2 | 381.5 | 441.5 | 508.1 | 564.8 | |
550 | 22 | 559 | 86.54 | 129.1 | 171.1 | 129.1 | 294.3 | 171.1 | 373.8 | 451.4 | 527.0 | 611.6 | 672.3 | ||
600 | 24 | 610 | 94.53 | 141.1 | 209.6 | 141.1 | 255.4 | 355.3 | 187.1 | 442.1 | 547.7 | 640.0 | 720.2 | 808.2 | |
650 | 26 | 660 | 127.4 | 202.7 | 152.9 | 202.7 | |||||||||
700 | 28 | 711 | 137.3 | 218.7 | 271.2 | 164.9 | 218.7 | ||||||||
750 | 30 | 762 | 147.3 | 234.7 | 292.2 | 176.8 | 234.7 | ||||||||
800 | 32 | 813 | 157.2 | 250.6 | 312.2 | 188.8 | 342.9 | 250.6 | |||||||
850 | 34 | 864 | 167.2 | 266.6 | 332.1 | 200.3 | 364.9 | 266.6 | |||||||
900 | 36 | 914 | 177.0 | 282.3 | 351.7 | 212.6 | 420.4 | 282.3 | |||||||
950 | 38 | 965 | 224.5 | 298.2 | |||||||||||
1000 | 40 | 1016 | 236.5 | 341.2 | |||||||||||
1050 | 42 | 1067 | 248.5 | 330.2 | |||||||||||
1100 | 44 | 1118 | 261.5 | 346.2 | |||||||||||
1150 | 46 | 1168 | 272.3 | 351.8 | |||||||||||
1200 | 48 | 1219 | 284.2 | 377.8 | |||||||||||
How To Calculation The Weight Seamless Pipes
[(OD- T) X T] X0.02466=kg/m (weight per meter)
OD=Out diameter;T=Thickness.
Advantage
1. High temperature strength and oxidation resistance: ASTM A335 alloy steel pipes are mainly made of ferritic heat-resistant alloys such as P5, P11, and P22, which have excellent high temperature resistance, high temperature strength, and oxidation resistance, and can maintain a long service life in high temperature and high pressure environments.
2. High purity, uniformity, and precision: ASTM A335 alloy steel pipes have the characteristics of high purity, uniformity, and precision, which can meet the needs of high-end equipment manufacturing, such as aerospace, nuclear energy, and other fields.
3. Corrosion resistance: ASTM A335 alloy steel pipes have good corrosion resistance and can resist the erosion of various chemical substances. They also have good resistance to acidic, alkaline, salt and other substances.
4. Fatigue resistance: ASTM A335 alloy steel pipes have good fatigue resistance and can be used for a long time in high pressure and high temperature environments, with less fatigue fracture.
5. Good mechanical properties: ASTM A335 alloy steel pipes have good mechanical properties, can withstand large pressure and bending stress, and are not prone to deformation and cracks.
6. Good machinability: ASTM A335 alloy steel pipes have good machinability and can be processed using various conventional methods such as cutting, welding, bending, etc., which is convenient for manufacturing and maintenance.
7. High reliability: ASTM A335 alloy steel pipes have high reliability and can maintain stable performance under complex environmental conditions, reducing failures and maintenance costs.
In conclusion, ASTM A335 alloy steel pipes have excellent high-temperature resistance, oxidation resistance, corrosion resistance, fatigue resistance, and mechanical properties, which can meet the needs of various high-end equipment manufacturing, and have broad application prospects and market prospects.
