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Help CenterPolished Stainless Steel Precision Tube, ASTM A269 TP304, 1.5mm Wall, 6m, for Aerospace Use
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Process:
1.Material selection: Select high-quality steel billets, whose chemical composition and mechanical properties must meet the quality requirements of precision steel tubes.
2.Heat treatment: According to different steel grades and uses, corresponding heat treatments such as annealing, normalizing, quenching, etc. are carried out to improve the organizational structure and mechanical properties of the steel tube.
3.Cold drawing or hot rolling: The cold drawing process can achieve higher precision and better surface quality, while the hot rolling process is more suitable for the production of large-diameter precision steel tubes.
4.Straightening: Straighten the steel tube to ensure that its straightness meets the requirements.
5.Surface treatment: Various surface treatments such as polishing, pickling, plating, etc. are carried out as needed to improve the corrosion resistance, wear resistance and appearance quality of the steel tube.
6.Inspection: The steel tube is strictly inspected to ensure that it meets various technical indicators.
Material |
ASTM A53A,ASTM A53B,ASTM A178C |
||
10#,20#,45#,Q235,Q345,Q195,Q215,Q345C,Q345A Stainless 201 304 316 | |||
ST37,ST37-2,DIN 1629 ST35,DIN 1629 ST45,DIN 17175 ST35.8,DIN 17175 | |||
DIN 17175 19Mn5 | |||
16Mn,Q345B,T1,T2,T5,T9,T11,T12,T22,T91,T92,P1,P2,P5,P9, | |||
P11,P12,P22,P91,P92,15CrMO,Cr5Mo,10CrMo910,12CrMo, | |||
13CrMo44,30CrMo,A333 GR.1,GR.3,GR.6,GR.7,etc | |||
Gr.B,X42,X46,X52,X60,X65,X70,X80,X100,etc | |||
Dimensions |
Out diameter: 5mm~140mm |
||
Wall Thickness: 3mm~25mm | |||
Length:5.8m~6m or customize | |||
Surface treatment |
Black painting |
||
Type |
1. Seamless steel pipe 2. ERW steel pipe 3. Tubing 4.Hot-rolled steel pipe 5. Spiral steel pipe 6. Hot-galvanized steel pipe 7. Stainless Steel pipe 8.Cold drawn precision tube |
||
Product Description of ASTM A249 Stainless Steel Tube
Discover our ASTM A249 Welded Stainless Steel Tubes, meticulously engineered for superior performance in boiler, superheater, heat-exchanger, and condenser applications. YES Stainless is your reliable source for high-quality welded stainless steel tubes that meet stringent ASTM A249 standards.
Product Overview of ASTM A249 Stainless Steel Tube :
| International Standard | Dimension | Stainless Steel Grade |
| ASTM A249, A269, JIS G3463 |
OD: 12.7~114.3mm WT: 1.2~2.11mm |
TP304, TP304L, TP316L, SUS304TB |
Key Features of ASTM A249 Stainless Steel Tube
High-Quality Stainless Steel: Crafted from premium stainless steel, our ASTM A249 tubes offer exceptional corrosion resistance, ensuring durability and reliability in harsh industrial environments.
Precision Manufacturing: Our tubes are meticulously crafted to exacting dimensions and stringent ASTM A249 standards, ensuring consistent quality and reliability in every application.
Versatile Industrial Use: Ideal for a wide range of applications including boilers, superheaters, heat-exchangers, and condensers in industries such as power generation, chemical processing, and HVAC systems.
Abstract
This guide specifies standard specification for nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels 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. When 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.
Scope
1.1 This specification2 covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels listed in Table 1, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
1.2 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.
1.3 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.
1.4 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.
1.5 Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated in the order.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
1.7 The following safety hazards caveat pertains only to the test method described in the Supplementary Requirements of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. A specific warning statement is given in Supplementary Requirement S7, Note S7.1.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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