We are pleased to announce the successful delivery of our ASTM A210 Grade A1 Seamless Boiler and Superheater Tubes project to a well-known client in Thailand. This collaboration highlights our expertise in product quality and service excellence, further enhancing our reputation in the international market.
ASTM A210 / A210M, ASME SA210 / SA210M Grade A-1 is the standard applicable to Seamless Medium-Carbon Steel Boiler and Superheater Tubes.
SA210 A1 Seamless Boiler Tubes Project Overview
Location: Thailand
Product: Seamless Tube
Standard and Material: ASME SA210 A1
Specifications:
50.8MM × 5MM × 118000MM
76.2MM × 5.59MM × 6000MM
Application: Boiler system pipelines,Seamless medium carbon steel Boiler Tube used in super heater, heat exchangers, condensers, marine application, refineries, paper pulping.
Rigorous Testing to Ensure Premium Quality of ASME SA210 Gr. A1 heat exchanger tubes
Test requirement:
ASTM A210 / A210M Grade A-1 Chemical Compositions
| Chemical Components (%) | ||||||||
| Grade | C | Si | Mn | P | S | Mo | Cr | V |
| A-1 | ≤0.27 | ≥0.10 | ≤0.93 | ≤0.035 | ≤0.035 | / | / | / |
ASTM A210 / A210M Mechanical Tests Required
| Mechanical Properties | ||||
| Grade | Tensile
Strength (Mpa) |
Yield
Strength (Mpa) |
Elongation
(%) |
Hardness (HRB) |
| A-1 | ≥415 | ≥255 | ≥30 | ≤79 |
ASTM A210 / A210M Tube Wall Thickness Tolerance
| 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 |
ASTM A210 / A210M Tube Outside Diameter Tolerance
| Cold-Finished Seamless Tubes | ||
|
Outside Diameter In. (mm) |
Permissible Variations In. (mm) | |
| Over (+) | Under (-) | |
| Under 1 (25.4) | 0.004 (0.10) | 0.004 (0.10) |
| 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 (0.20) | 0.008 (0.20) |
| 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 (0.30) | 0.012 (0.30) |
ASTM A210 / A210M Tube Cut Length Tolerance
| Cold-Finished Seamless Tubes | ||
| Outside Diameter, In.(mm) |
Cut Length, 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. | ||
ASTM A210 / A210M Tube Hydrostatic Test Pressures
Each tube shall be subjected to the hydrostatic pressure test, or instead of this test, a nondestructive test may be used when specified by the purchaser.
| Hydrostatic Test Pressures | |
| Outside Diameter of Tube, in. [mm] | Hydrostatic Test Pressure, psi [MPa] |
| Under 1 [25.4] | 1000 [7] |
| 1 to 11⁄2 [25.4 to 38.1], excl | 1500 [10] |
| 11⁄2 to 2 [38.1 to 50.8], excl | 2000 [14] |
| 2 to 3 [50.8 to 76.2], excl | 2500 [17] |
ASTM A210 / A210M Flattening Test
One flattening test shall be made on specimens from each end of one finished tube from each lot, but not the one used for the flaring test. Tears or breaks occurring at the 12 or 6 o'clock positions on Grade C tubing with sizes of 2.375 in. [60.3 mm] in outside diameter and smaller shall not be considered a basis for rejection.
ASTM A210 / A210M Flaring Test
One flaring test shall be made on specie- men from each end of the one finished tube from each lot, but not the one used for the flattening test.
All tests were conducted under the client's close supervision, with full transparency in data and reports. This rigorous process underscores our commitment to quality and client satisfaction.
MTC of ASME SA210 GR A1
Efficient Delivery Secures Client Trust
The project's delivery process was seamless, covering every stage from order confirmation to on-site shipment:
Precision Production Planning: A customized production schedule ensured timely completion of the order based on the client's specific needs.
Packaging and Transportation: All seamless tubes were treated with anti-corrosion coatings and packaged securely to prevent damage during transit.
On-Time Delivery: The products were successfully delivered to the client's site in December 2024, ensuring the project remained on track.
The client expressed their appreciation for our efficient production and delivery capabilities, stating:
"From the start of the collaboration to the project's completion, the entire process was incredibly smooth. Your strict quality control measures have given us great confidence."
Supporting Clients, Driving Growth
Boiler systems demand exceptional performance from steel materials, and the successful completion of this project demonstrates our technological capabilities in producing high-standard seamless tubes. It also reflects our customer-centric approach to service.
Moving forward, we remain committed to providing high-quality, customized steel solutions to clients worldwide, contributing to the growth of industries such as energy and manufacturing.
If you have similar requirements, don't hesitate to contact us! Let's work together to create a successful future.
