ASME SA 78 heat exchanger tube is a type of carbon steel tube in the ASME (American Society of Mechanical Engineers) standard, mainly used to manufacture heating surface tubes for boilers and superheaters.
GNEE usually supplies SA178 tubes to this specification in sizes and thicknesses from 1⁄2 to 5 inches [12.7 to 127 mm] OD and minimum wall thicknesses from 0.035 to 0.360 inches [0.9 to 9.1 mm] (inclusive). Other sizes of steel tubes can also be provided according to the actual needs of customers.
SA 178 Heat Exchanger Tubes Chemical Composition
| A/SA 178 Gr. A | A/SA 178 Gr. C | A/SA 178 Gr. D | |
| C | 0.06 - 0.18 | 0.35 max | 0.27 max |
| 0.27 - 0.63 | 0.80 max | 1.00 - 1.50 | |
| P | 0.035 max | 0.035 max | 0.030 max |
| S | 0.035 max | 0.035 max | 0.015 max |
| - | - | 0.10 min |
SA 178 Carbon Steel Condenser Tubing Mechanical Properties
| A/SA 178 Grade A | A/SA 178 Grade C | A/SA 178 Grade D | |
| 47 (325) | 60 (415) | 70 (485) | |
| 26 (180) | 37 (255) | 40 (275) | |
| 35 | 30 | 30 |
A178 Heat exchange tubes Materials:
OD :50.8×WT 2.3×6000MM
Materials: ASTM A178, ASME SA178
Size: OD 50.8 mm
Wall Thickness: WT 2.3 MM
Length: 6000 MM
ASTM A178 Superheater Tubes
GNEE has 14 steel production lines, 10 processing equipment for processing, bending, coating, heat treatment, cutting, drilling, beveling, tempering, surface treatment, etc., complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tons.
Q.What is your after-sales service?
A.We provide after-sales service and 100% quality assurance for our products.
A.Delivery time is usually about 1 month, if we have stock, we can ship within 7 days.
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