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ASME SA214 Carbon Steel Tubes Supplier

SA 214 ERW Tubes for Heat Exchangers & Condensers

Dinesh Tube India supplies ASME SA214 carbon steel tubes (ASTM A214) from Mumbai to heat exchanger fabricators, air-cooler makers, EPC contractors and plant maintenance teams in India and abroad. SA214 is an electric-resistance-welded (ERW) low-carbon steel tube, heat treated after welding. It is used in shell-and-tube heat exchangers, condensers and as the base tube for finned tubes.

We supply SA 214 tubes up to 76.2 mm (3") OD in straight cut lengths, with an EN 10204 3.1 mill test certificate. Send us your OD, wall thickness (or BWG), length and quantity for a quote.


Table of Contents


What Is SA 214 Material?

SA 214 material (also written SA-214 or SA214) is the ASME designation of ASTM A214/A214M, the standard specification for electric-resistance-welded carbon steel heat exchanger and condenser tubes. The specification covers tubes up to 3 in. (76.2 mm) outside diameter. Tubes are formed from low-carbon steel strip, welded by electric resistance with no filler metal, and then heat treated to normalise the weld zone. General requirements for tolerances, testing and marking come from ASTM A450/A450M.

The SA 214 tube material has 0.18% carbon maximum and a hardness of 72 HRB maximum. That is the same chemistry and hardness limit as seamless SA179 tubes, so SA214 is the welded, lower-cost alternative for the same heat transfer duty. It is soft and ductile, so it expands cleanly into tube sheets and takes fins well.

ASME SA214 ERW carbon steel tubes

Full specification sheet: Download ASTM A214 Tube Material Specification (PDF)

SA 214 Material Specification

Standard

ASTM A214/A214M, ASME SA214/SA214M

General Requirements

ASTM A450/A450M

Outside Diameter

Up to 76.2 mm (3")

Wall Thickness

18 BWG – 10 BWG (1.24 – 3.40 mm); others on request

Manufacturing Process

Electric-resistance welded (ERW), no filler metal

Heat Treatment

Heat treated after welding (normalised)

Length

Single random, double random, cut length as required

Ends

Plain end, square cut, deburred

Certification

EN 10204 3.1 MTC; third-party inspection on request

Value-Added Services

Cutting to length, eddy current testing, hydro testing
SA 214 material specification

SA 214 Chemical Composition (%)

GradeCarbon (C)Manganese (Mn)Phosphorus (P)Sulphur (S)
SA2140.18 max0.27 – 0.630.035 max0.035 max

SA 214 Material Properties

PropertyRequirement
Hardness72 HRB maximum
Flattening, reverse flattening & flange testsNo cracks or weld defects
Tensile / yield strengthNot specified in A214 (reported on MTC if ordered)

Unlike SA179, ASTM A214 does not set a minimum tensile or yield strength. Material properties are controlled through chemistry, heat treatment, hardness and the ductility tests above.

Heat Treatment & Testing

After welding, SA214 tubes are heat treated at 900 °C (1650 °F) or higher. Cold-drawn tubes are also heat treated after the final cold draw, at 650 °C (1200 °F) or higher. This normalises the weld zone so it matches the parent metal. Every lot is then tested as required by ASTM A214 and A450:

  •   Flattening test: checks ductility of tube and weld
  •   Reverse flattening test: opens the weld line to check fusion
  •   Flange test: tube end flanged without cracking
  •   Hardness test: Rockwell or Brinell, 72 HRB maximum
  •   Hydrostatic or eddy current test: every tube, per A450
Tube ODHydrostatic Test Pressure (max)
Under 25.4 mm (1")7 MPa (1,000 psi)
25.4 – under 38.1 mm (1" – 1½")10 MPa (1,500 psi)
38.1 – under 50.8 mm (1½" – 2")14 MPa (2,000 psi)
50.8 – 76.2 mm (2" – 3")17 MPa (2,500 psi)

Test pressure is calculated as P = 32,000 t/D (psi), limited to the maximums above.

SA214 Dimensional Tolerances (ASTM A450)

Outside DiameterOD Tolerance
Under 25.4 mm (1")± 0.10 mm
25.4 – 38.1 mm (1" – 1½")± 0.15 mm
Over 38.1 – under 50.8 mm (1½" – 2")± 0.20 mm
50.8 – under 63.5 mm (2" – 2½")± 0.25 mm
63.5 – 76.2 mm (2½" – 3")± 0.30 mm

Wall thickness for welded tubes ordered to minimum wall: +18% / −0. Cut length: +3.2 mm / −0 up to 7.3 m.

SA214 Tube Sizes

Common heat exchanger and finned tube sizes are listed below. Other sizes up to 76.2 mm OD are available on request.

OD (mm)OD (inch)Typical Wall (BWG / mm)
15.885/8"18 / 1.24, 16 / 1.65, 14 / 2.11
19.053/4"18 / 1.24, 16 / 1.65, 14 / 2.11, 12 / 2.77
25.401"16 / 1.65, 14 / 2.11, 13 / 2.41, 12 / 2.77
31.751¼"16 / 1.65, 14 / 2.11, 12 / 2.77
38.101½"14 / 2.11, 12 / 2.77, 10 / 3.40
50.802"14 / 2.11, 12 / 2.77, 10 / 3.40
63.502½"12 / 2.77, 10 / 3.40
76.203"12 / 2.77, 10 / 3.40

SA 214 Equivalent Material

StandardComparable Welded Grade
UNSK01807
EN 10217-2P235GH
JIS G3461 (Japan)STB 340 (ERW)
Seamless alternative (ASME)SA179

These are the closest comparable grades, not exact equivalents. Check your design code before substituting one for another.

Need SA214 tubes for a heat exchanger, condenser or fin fan cooler? Send your OD, wall (BWG), length and quantity to kamlesh@dineshtube-india.com or call +91 83559 10913. You can also send an enquiry.

Types of SA214 Tubes

SA214 ERW carbon steel tubes

SA214 ERW Tubes

Electric-resistance-welded low-carbon tubes, heat treated after welding.
SA214 carbon steel heat exchanger tubes

SA214 Heat Exchanger Tubes

For shell-and-tube exchangers, coolers and finned tube bundles. See all heat exchanger tubes.
SA214 carbon steel condenser tubes

SA214 Condenser Tubes

For surface condensers and process condensers in power and process plants.

SA214 vs SA179, SA178 & SA192

GradeProcessOD RangeMain Use
SA214ERW (welded)Up to 3"Heat exchangers, condensers, finned tube base tubes
SA179Seamless, cold drawn1/8" – 3"Heat exchangers, condensers (seamless)
SA178ERW (welded)1/2" – 5"Boiler tubes, flues, safe ends
SA192Seamless1/2" – 7"High-pressure boiler tubes
SA210 A1Seamless, medium carbon1/2" – 5"Boiler & superheater tubes

SA214 Tube Applications

  •   Shell-and-tube heat exchangers
  •   Surface and process condensers
  •   Air-cooled heat exchangers (fin fan coolers)
  •   Base tubes for finned tubes and economisers
  •   Oil coolers and lube oil coolers
  •   Feedwater heaters
  •   Refineries and petrochemical plants
  •   Power plants, sugar mills and fertilizer plants
  •   HVAC and refrigeration equipment
Industries using SA214 heat exchanger tubes

Looking for another grade? Browse all carbon steel tubes or our boiler tubes.

SA 214 Material: FAQs

What is SA 214 material?

SA 214 (also written SA-214 or SA214) is an electric-resistance-welded (ERW) low-carbon steel tube material specified by ASME SA214 / ASTM A214 for heat exchangers, condensers and similar heat transfer equipment. It has 0.18% carbon maximum and 0.27–0.63% manganese, a hardness of 72 HRB maximum, and covers tubes up to 3 in. (76.2 mm) outside diameter. Tubes are heat treated after welding.

What is the SA 214 material specification?

ASME SA214 / ASTM A214 is the standard specification for electric-resistance-welded carbon steel heat exchanger and condenser tubes. It sets the chemical composition, the heat treatment after welding, the hardness limit, and the flattening, reverse flattening, flange and hydrostatic or eddy current tests. General requirements such as tolerances and marking come from ASTM A450.

Is SA214 seamless or welded?

SA214 tubes are always welded, made by electric-resistance welding (ERW) with no filler metal and then heat treated. If you need a seamless low-carbon heat exchanger tube, specify ASME SA179 instead.

What is the difference between SA214 and SA179?

Both have the same low-carbon chemistry and the same 72 HRB maximum hardness, and both are used for heat exchangers and condensers up to 3 in. OD. The difference is the manufacturing process: SA214 is ERW (welded), while SA179 is seamless and cold drawn. SA214 is usually lower in cost; SA179 is chosen where the design code or client asks for seamless tube.

What is the difference between SA214 and SA178?

Both are ERW carbon steel tubes, but they serve different equipment. SA214 is for heat exchangers and condensers up to 3 in. OD. SA178 is for boiler tubes, boiler flues, superheater flues and safe ends, in Grades A, C and D, from 1/2 to 5 in. OD.

Why is SA214 used for finned tubes?

SA214 ERW tube is a cost-effective, consistent base tube for finned tubes in air-cooled heat exchangers (fin fan coolers) and economisers. Its controlled hardness and uniform wall suit fin winding or embedding, and its low carbon content makes it easy to weld and expand.

What is the equivalent of SA214 tube material?

There is no exact equivalent, but the closest comparable welded grades are UNS K01807, EN 10217-2 P235GH and JIS G3461 STB 340 (ERW). Check your design code before substituting, because test and heat-treatment requirements differ between standards.

Export Destinations for SA214 Tubes

We export SA214 carbon steel tubes to the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Iraq, Jordan), Africa (Nigeria, Egypt, South Africa, Kenya, Ghana, Algeria, Morocco, Tunisia), Asia (Japan, South Korea, Singapore, Malaysia, Indonesia, Thailand, Vietnam, Philippines, Bangladesh, Sri Lanka), Europe (Italy, Spain, Portugal, France, Netherlands, Belgium, Poland, Romania, Turkey, United Kingdom), and the Americas (United States, Canada, Mexico, Brazil, Chile, Peru, Colombia, Argentina).