Carbon Steel SA214 Heat Exchanger Tubes

Carbon steel SA214 heat exchanger tubes are electric-resistance-welded (ERW), minimum-wall-thickness steel tubes manufactured to ASTM A214/A214M and ASME SA-214 standards. Engineered specifically for thermal management systems, these carbon steel tubes provide uniform heat transfer and mechanical reliability across shell-and-tube heat exchangers, steam condensers, boilers, and related heat-transfer apparatus operating under low-to-moderate pressure conditions.

Carbon Steel SA214 Heat Exchanger Tube Price

Carbon steel SA214 heat exchanger tubes in India generally cost between ₹70/kg and ₹120/kg. The final cost varies based on dimensional specifications, meaning changes in the outer diameter, minimum wall thickness, and overall length will scale the price up or down depending on your project requirements. ASTM A214/ASME SA-214 calls for minimum wall tolerances, not nominal averages. Thicker walls and greater diameters also mean more raw material per meter, which instantly increases the base production costs. Further mill operations, such as cold drawing or post-weld heat treatment to improve surface tolerances, will affect initial unit pricing.

Other quality control and testing needs can impact the total cost, in addition to the important dimensions. Finally, the last pricing tiers are based on order quantities and mandatory material test reports (MTRs). 

Carbon Steel SA214 Heat Exchanger Tube Specifications

ASTM A214 describes ERW carbon steel tubes in minimum-wall form. ASME SA-214 in Section II of the Boiler and Pressure Vessel Code carries the same requirements for code applications.

Manufacturers weld the tube by electric resistance, then heat treat it. Welded tubes go to 900°C (1650°F) or higher and cool in air or in the cooling chamber of a controlled-atmosphere furnace. Cold-drawn tubes receive their heat treatment after the final draw pass, at 650°C (1200°F) or higher.

An order for A214 tubes states the quantity, size (OD and minimum wall), length, any optional requirements, the test report requirement, and the specification designation. The purchaser specifies only the OD and minimum wall. The inside diameter stays off the order.

Chemical Composition of Carbon Steel SA214 Heat Exchanger

A214 sets four elements. Low carbon keeps the strip weldable and formable, which suits tubes that are expanded into tubesheets.

Suppliers cannot substitute an alloy grade that needs an added element beyond those listed. Plain carbon steel is the only chemistry that qualifies. 

Mechanical Properties of Carbon Steel SA214 Heat Exchanger

A214 controls the finished tube through hardness and forming tests. A lot means 250 tubes of the same size and heat. Heat-treat conditions define the lot further: In a batch furnace, only tubes from the same furnace charge together.

Mechanical property requirements apply to tubes from 1/8 in. (3.2 mm) inside diameter and 0.015 in. (0.4 mm) wall upward. The flattening and flange tests show how the weld seam and base metal behave when a fabricator rolls, expands, or flares the tube end.

ASTM A214 / ASME SA214 Tube Dimensions and Sizes

A214 covers sizes up to 3 in. (76.2 mm) outside diameter, inclusive. Tubes with other dimensions qualify when they meet every other requirement of the specification. Dimensional tolerances follow A450/A450M.

Birmingham Wire Gauge (BWG) is widely traded and designated for heat exchanger tube walls. To achieve optimal pressure ratings and to prevent operational failure, you must expressly state the requisite BWG as a minimum wall thickness on your purchase order.

Suppliers deliver specific cut lengths or random lengths, so state your preference when you inquire. Inch-pound values apply unless you order to the "M" designation, and each system stands on its own. Mixing inch and metric values on one order risks nonconformance.

Applications of Carbon Steel SA214 Heat Exchanger Tube

Buyers specify SA214 where clean water, steam, or light process fluids pass through carbon steel without aggressive corrosion. Typical uses include:

• Shell-and-tube heat exchangers
• Surface condensers
• Feedwater heaters
• Oil and lube-oil coolers
• Boiler-side heat-transfer equipment
• Similar heat-transfer apparatus built to the standard

Fabricators roll or expand these tubes into tubesheets, so the hardness cap of 72 HRB and the flange test give them a predictable tube end. Corrosive services such as seawater or chloride-bearing process streams call for stainless or alloy tubes instead.

Buy Carbon Steel SA214 Heat Exchanger Tubes from Suppliers

For new fabrication, plant maintenance, or full retubing projects requiring carbon steel SA214 heat exchanger tubes, buyers can use us, The Piping Mart, a B2B platform that connects them with suppliers and manufacturers, to compare available sourcing options against their required specifications. Locking down your exact technical specs up front lowers procurement delays and ensures you get vendor quotations you can work with:

• State the exact O.D., minimum wall thickness or B.W.G., total cut length, and total amount requested.
• State the controlling standard, either ASTM A214/A214M or ASME SA-214.
• Select your non-destructive seam testing method of choice, such as hydrostatic proof testing or non-destructive electric examination.
• Accredited material test reports (MTRs) in accordance with ASTM A450/A450M to determine chemical composition, tensile strength, and hardness limitations.

The inclusion of these extensive, standardized criteria in one query allows qualified manufacturers and suppliers to submit rapid, accurate, and directly comparable competitive quotations.

Send your size list now to receive supplier quotes.