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Seamless Carbon Steel Tubing A179/SA179 Heat Exchanger And Condenser Tube OD1/2'-48'
ASTM A179 / ASME SA179 standard covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat-exchangers, condensers, and similar heat transfer apparatus. ASTM A179 / ASME SA179 standard requires that the tubes be heat treated after the final cold drawn pass at a temperature of 1200°F [650°C] or higher.
Product Standard: A179/SA179
Main steel grades: A179/SA179
Application: For heat exchanger and condenser, conveying water, oil, gas and other common fluids
Chemical Requirements & Mechanical Properties:
Standard | Grade | Chemical Composition | Mechanical Properties | Elongation | |||
C | Mn | P.S | TS Mpa | YS Mpa | (%) | ||
ASTM A179 | A179 | 0.06-0.18 | 0.27-0.63 | ≤0.035 | ≥325 | ≥180 | ≥35 |
A179 Mechanical properties | |||
Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | Hardness (HRB) |
≥325 | ≥180 | ≥35 | ≤72 |
Wall Thickness Tolerance:
A179 Seamless, Cold-Finished Tubes | ||
Outside Diameter In. (mm) | Wall thickness Tolerance % | |
Over (+) | Under (-) | |
1 ½ (38.1) and under | 20 | 0 |
Over 1½ (38.1) | 22 | 0 |
Outside Diameter Tolerance:
A179 Cold-Finished Seamless Tubes | ||
Outside Diameter In. (mm) | Permissible Variations In. (mm) | |
Over (+) | Under (-) | |
Under 1 (25.4) | 0.004 (0.1) | 0.004 (0.1) |
1 to 1 ½ (25.4 to 38.1), Incl | 0.006 (0.15) | 0.006 (0.15) |
Over 11⁄2 to 2 [38.1 to 50.8], Excl | 0.008 (0.2) | 0.008 (0.2) |
2 to 21⁄2 [50.8 to 63.5], Excl | 0.010 (0.25) | 0.010 (0.25) |
21⁄2 to 3 [63.5 to 76.2], Excl | 0.012 (0.3) | 0.012 (0.3) |
Cut Length Tolerance:
A179 Cold-Finished Seamless Tubes | ||
Outside Diameter | Cut Length, in.(mm) | |
In.(mm) | Over (+) | Under (-) |
All Sizes | 3⁄16 [5] | 0 [0] |
Under 2 [50.8] | 1⁄8 [3] | 0 [0] |
2 [50.8] and over | 3⁄16 [5] | 0 [0] |
Under 2 [50.8] | 1⁄8 [3] | 0 [0] |
2 [50.8] and over | 3⁄16 [5] | 0 [0] |
These permissible variations in length apply to tubes before bending. They apply to cut lengths up to and including 24 ft [7.3 m]. For lengths greater than 24 ft [7.3 m], the above over-tolerances shall be increased by 1⁄8 in. [3 mm] for each 10 ft [3 m] or fraction thereof over 24 ft or 1⁄2 in. [13 mm], whichever is the lesser. |
Delivery status: Annealed, normalized, normalized+Tempered, etc.
Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.
Surface treatment: oil impregnation, paint, passivation, phosphating, shot blasting etc.
Packing: Exporting package/wooden box /as requirement.
Mark: As required.
Place of Origin | China | Brand Name | BOYUE |
Standard | ANSI, ISO, ASME, DIN, ASTM | Type | Seamless |
ModelNumber | Carbon Steel Pipe | Thickness | SCH 5-SCH XXS |
Packing | Depending on customer | Payment | 30%TT+70% Balance |
Supply Ability:40000Pieces / per Month
Packaging & Delivery
Packaging Details:Generally plywooden case or following customer's requirement.
Port:Shanghai/Tianjin
Commerce Clause
Minimum Order Quantity: | 1pcs |
Price: | Depending on quantity |
Payment Terms: | T/T or Western Union or LC |
Supply Ability: | 40000 ton per month |
Delivery Time: | 10-100 days depending on quantity |
Packaging Details: | Depending on customer |
Why Choose Us
1.One-Stop Service,One Single Source.
2.No MOQ.
3.Best quality,competitive price
4.Fast Reply.
5.On-Time Delivery
6.Professional sales and technical team .
FAQ
Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing of Large-size products.(View Mor)
Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce based on your drawings.
Q3: Will my drawing be e after you get it?
A3: Yes, we will not release your design to third party unless with your permission.
Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.
Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to ensure quality standard, but it’s charged according to your drawing.