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Help CenterASTM A249 ASME SA249 TP304 TP304L TP304H TP316L TP316Ti TP321 TP321H TP309S TP310S TP347H Welded Tubes Pipe
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We are specialized manufacturer of ASME SA249 ASTM A249 TP304, ASTM A249 TP304L, ASTM A249 TP304H, ASTM A249 TP316, ASTM A249 TP316L, ASTM A249 TP316H, ASTM A249 TP316Ti, ASTM A249 TP321 TP321H, ASTM A249 TP309H TP309S, ASTM A249 TP310S TP 310H, ASTM A249 TP347 Welded Tubes and ASTM A249 Welded Pipe.
What is ASTM A249 ASME SA249?ASTM A249 is specifies standard specification for nomina wall thickness welded tubes and heavily cold worked welded tubes made from the austenitic steel with various grades intended for such use as a boiler, superheater, heat exchanger, or condenser tubes. Heat and product analysis shall conform to the requirements as to chemical composition for carbon, manganese, phosphorous, sulfur, silicon, chromium, nickel, molybdenum, nitrogen, copper, and others. All materials shall be furnished in the heat-treated condition in accordance with the required solution temperature and quenching method.
ASTM A249 Tubing Test ItemsWhen the final heat treatment is in a continuous furnace, the number of tubes of the same size and from the same heat in a lot shall be determined from the prescribed size of the tubes. The material shall conform to the prescribed tensile and hardness properties such as tensile strength, yield strength, elongation, and Rockwell hardness number. The steel shall undergo mechanical tests such as tension test, flattening test, flange test, reverse-bend test, hardness test, and hydrostatic or nondestructive electric test. The grain size of different grades of steel shall be determined in accordance with the test methods.
Chemical Analysis, 100 % PMI.
Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation),
Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
The tubing sizes and thicknesses usually furnished to this specification are 1/8 in. [3.2 mm] in inside diameter to 12 in. [304.8 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1 mm], inclusive, in wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
| BWG | BWG | BWG | BWG | BWG | BWG | BWG | BWG | ||
| 25 | 22 | 20 | 18 | 16 | 14 | 12 | 10 | ||
| WT mm | WT mm | WT mm | WT mm |
WT mm | WT mm | WT mm | WT mm |
||
| Outside Diameter | Outside Diameter | 0.508 | 0.71 | 0.89 | 1.24 | 1.65 | 2.11 | 2.77 | 3.40 |
| mm | inch | kg/m | kg/m | kg/m | kg/m | kg/m | kg/m | kg/m | |
| 6.35 | 1/4 | 0.081 | 0.109 | 0.133 | 0.174 | 0.212 | |||
| 9.53 | 3/8 | 0.126 | 0.157 | 0.193 | 0.257 | 0.356 | 0.429 | ||
| 12.7 | 1/2 | 0.214 | 0.263 | 0.356 | 0.457 | 0.612 | 0.754 | ||
| 15.88 | 5/8 | 0.271 | 0.334 | 0.455 | 0.588 | 0.796 | 0.995 | ||
| 19.05 | 3/4 | 0.327 | 0.405 | 0.553 | 0.729 | 0.895 | 1.236 | ||
| 25.4 | 1 | 0.44 | 0.546 | 0.75 | 0.981 | 1.234 | 1.574 | 2.05 | |
| 31.75 | 1 1/4 | 0.554 | 0.688 | 0.947 | 1.244 | 1.574 | 2.014 | 2.641 | |
| 38.1 | 1 1/2 | 0.667 | 0.832 | 1.144 | 1.514 | 1.904 | 2.454 | 3.233 | |
| 44.5 | 1 3/4 | 1.342 | 1.774 | 2.244 | 2.894 | 3.5 | |||
| 50.8 | 2 | 1.549 | 2.034 | 2.574 | 3.334 | 4.03 | |||
| 63.5 | 2 1/2 | 1.949 | 2.554 | 3.244 | 4.214 | 5.13 | |||
| 76.2 | 3 | 2.345 | 3.084 | 3.914 | 5.094 | 6.19 | |||
| 88.9 | 3 1/2 | 2.729 | 3.609 | 4.584 | 5.974 | 7.27 | |||
| 101.6 | 4 | 4.134 | 5.254 | 6.854 | 8.35 | ||||
| 114.3 | 4 1/2 | 4.654 | 5.924 | 7.734 | 9.43 |
ASTM A249 Welded tubes and ASME SA249 Stainless Steel Tubes are finished in accordance with customer needs regarding dimensional and wall thickness specifications as well as heat treatment for more demanding applications.
Permissible Tolerance of ASTM A249| D | ± 0.10 |
| D | ± 0.10 |
| 25.4 ≤ D ≤ 38.1 | ± 0.15 |
| 38.1 |
± 0.20 |
| 50.8 ≤ D | ± 0.25 |
| 63.5 ≤ D | ± 0.30 |
| 76.2 ≤ D ≤ 101.6 | ± 0.38 |
| 101.6 |
+ 0.38/-0.64 |
| All dimensions | ± 10% |
| D | + 3.17/-0 |
| D ≥ 50.8 | + 4.76/-0 |
| Straightness | Below 0.8 / 900 |
| Application | EN | S.S. | ASTM-ASME | DIN | NFA | GOST |
| Chemical industry | EN 10217-7 | 219711 219713 | A358-SA358 A312-SA312 A269 ASTM A928 | 17457 | 49147 | gost 11068-81 |
| Food products | EN 10217-7 | ASTM A270 | 11850 | 49249 | ||
| Heat Exchanger Tubes | EN 10217-7 | 219711 219713 | A 249-SA 249 | 17457 2818 | 49247 49244 | GOST 11068-81 |
| Pipe line | EN 10217-7 | A778 A269 | 17455 | 49147 | ||
| Drinking water | EN 10312 | DVGW541 | ||||
| Decorative elements | EN 10296-2 | ASTM A554 | 17455 2395 | 49647 |
ASTM A249 covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic stainless steel listed in Table 1, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended for high-temperature service such as for superheaters and reheaters.
ASTM A249 ASME SA249 Welded Tube Relaed Key wordsaustenitic stainless steel; boiler tubes; condenser tube; heat exchanger tube; high temperature applications; steel tube; superheater tubes; temperature service applications, high; welded steel tube and heavily cold worked (HCW) tubes; Austenitic stainless steel tube–specifications; Boiler/superheater tubes–specifications; Condenser and heat exchanger systems–steel; High-temperature service applications–steel tube; Superheater tubes–specifications; Welded steel tube–specifications; ICS Number Code 23.040.10 (Iron and steel pipes)
ASTM A249 ASME SA249 Tube Heat Treatment Requirements| Grade | UNS Designation |
Heat Treat Type | Austenitizing/ Solutioning Temperature, min or range °F [°C] | Cooling Media | ASTM Grain Size No. B |
| TP304 | S30400 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP304L | S30403 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP304H | S30409 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP309S | S30908 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP309H | S30909 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP310S | S31008 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP310H | S31009 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP316 | S31600 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP316L | S31603 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP316H | S31609 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP317 | S31700 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP317L | S31703 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP321 | S32100 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP321H | S32109 | Solution treatment | cold worked:2000[1100] hot rolled: 2050 [1120]H | water or another rapid cool | 7 |
| TP347 | S34700 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP347H | S34709 | Solution treatment | 2000°F [1100] | water or another rapid cool | 7 |
| Grade | UNS Designation | Tensile Strength, Min ksi [MPa] | Yield strength, min ksi [MPa] | Elongation in 2 in. or 50 mm, min, %A, B | Brinell/Vickers Hardness Max |
Rockwell Hardness Max |
| TP304 | S30400 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP304L | S30403 | 70 [485] | 25 [170] | 35 | 192HBW/200Hv | 90HB |
| TP304H | S30409 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP304N | S30415 | 80 [550] | 35 [240] | 35 | 192HBW/200Hv | 90HB |
| TP310S | S31008 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP310H | S31009 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP316 | S31600 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP316L | S31603 | 70 [485] | 25 [170] | 35 | 192HBW/200Hv | 90HB |
| TP316H | S31609 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP316Ti | S31635 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP317 | S31700 | 75 [515] | 30 [205] | 34 | 192HBW/200Hv | 90HB |
| TP317L | S31703 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP321 | S32100 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP321H | S32109 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP347 | S34700 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
| TP347H | S34709 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.
Packing and Marking
Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.
Packing photos:
Zhongzheng Stainless Steel Co., Ltd. was established in 2018 with aregistered capital of 20 million yuan. lt is a manufacturing company thatintegrates the production of special materials, manufacturing andprocessing, sales, and technology development. The company covers anarea of 2,000 square meters and has 200 employees. it has built worldclass stainless steel seamless pipe (hot piercing, cold drawing, cold rollingproduction lines, precision steel pipe production lines, and large, mediumand small-sized welded pipe production lines. The company has beencommitted to providing high performance, high precision, hightemperature-resistant, high pressure-resistant, and corrosion-resistantsolutions and technical services for industrial equipment pipeline systems.The company specializes in producing a series of steel pipes, pipe fittingsflanges, etc., such as high-temperature (nickel-based) alloys, austeniticduplex steel, urea grade stainless steel, super stainless steel, etc. Thecompany is equipped with an annual production capacity of 5,000 tons ofstainless steel seamless pipe production line, 7,000 tons of welded pipeproduction line, and 500 tons of pipe fittings production line, etc. lt canoroduce stainless steel seamless pipes with diameters ranging from Φ6 toΦ762 and wall thicknesses ranging from 0.5 to 70 mm, stainless steelwelded pipes with diameters ranging from Φ15 to Φ2200 and wallthicknesses ranging from 0.5 to 80 mm, pipe fittings, and various stainlesssteel ingots, round steel, rough pipes, etc., according to customerrequirements and in accordance with standards such as GB, ASTM, etc.
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