Views: 4 Author: Site Editor Publish Time: 2025-04-21 Origin: Site
March 11, 2025, an old customer of our company sent us an inquiry for ASTM A213 alloy and stainless steel pipes. The customer put forward specific requirements for the prefix, and each item of pipes was individually wrapped in plastic film, and attention was paid to the separation of different steel grades to avoid potential difference corrosion caused by different steel grades.
ZIZI is a company specializing in the production and processing of pipes and fittings. The pipes and pipe fittings we produce are mainly used in chemical, petroleum, natural gas, water conservancy, electric power, marine engineering and other fields. The products mainly include seamless pipes, welded pipes, butt-welded pipe fittings, high-pressure forged pipe fittings and flanges of various sizes. The materials include carbon steel, stainless steel, alloy steel, low-temperature steel, duplex steel, base alloy, etc.
ITEM | Name of a commodity | Size | Kg |
1 | Tubing A213 T12 | 38,1mm x 4,40mm x 6000mm | 121 |
2 | Tubing A213 T12 | 38,1mm x 3,50mm x 6000mm | 59 |
3 | Tubing A213 T22 | 38,1mm x 4,00mm x 6000mm | 133 |
4 | Tubing A213 T22 | 38,1mm x 5,80mm x 6000mm | 122 |
5 | Tubing A213 T22 | 38,1mm x 6,90mm x 6000mm | 70 |
6 | Tubing A213 TP321H | 38,10mm x 6,90mm x 6000mm | 142 |
7 | Tubing A213 TP321H | 38,10mm x 4,90mm x 6000mm | 53 |
8 | Tubing A213 TP321H | 38,10mm x 4,50mm x 6000mm | 249 |
ASTM A213 is a standard specification that covers seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes. This specification is widely used for pipes that are used in high-temperature environments where durability, strength, and resistance to thermal expansion and oxidation are required.
CHEMICAL | LIMITS | C | Mn | P | S | Si | Cr | Mo |
ASTM A213 T12 | MIN | 0.050 | 0.30 | 0.80 | 0.440 | |||
MAX | 0.150 | 0.61 | 0.025 | 0.025 | 0.50 | 1.25 | 0.650 | |
ASTM A213 T22 | MIN | 0.050 | 0.30 | 1.90 | 0.870 | |||
MAX | 0.150 | 0.60 | 0.025 | 0.025 | 0.50 | 2.60 | 1.130 |
MATERIAL | ASTM A213 T12 | ASTM A213 T22 |
T.S (MPA) | 415 min | 415 min |
Y.S (MPA) | 220 min | 205 min |
EL % | 30 min | 30 min |
ASTM A213 is a standard specification for seamless ferritic and austenitic alloy steel tubes that are commonly used in boilers, superheaters, and heat exchangers. When referring to ASTM A213 Stainless Steel Tubes, it typically involves austenitic stainless steel tubes like T304, T316, and other high-performance alloys that offer excellent resistance to heat, corrosion, and oxidation at elevated temperatures.
CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr |
ASTM A312 TP304 | MIN | 8.00 | 18.00 | |||||
MAX | 0.08 | 2.00 | 0.05 | 0.03 | 1.00 | 11.00 | 20.00 | |
ASTM A312 TP316 | MIN | 11.00 | 16.00 | |||||
MAX | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 14.00 | 18.00 | |
ASTM A312 TP321 | MIN | 9.00 | 17.00 | |||||
MAX | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 12.00 | 19.00 | |
ASTM A312 TP321H | MIN | 0.04 | 9.00 | 17.00 | ||||
MAX | 0.10 | 2.00 | 0.045 | 0.030 | 1.00 | 12.00 | 19.00 |
MATERIAL | T.S (MPA) | Y.S (MPA) | EL % |
ASTM A312 TP304 | 515min | 205 min | 35 min |
ASTM A312 TP316 | 515min | 205min | 35 min |
ASTM A312 TP321 | 515 min | 205 min | 35 min |
ASTM A312 TP321H | 515 min | 205 min | 35 min |
Visual Inspection:
Purpose: To check for external defects such as cracks, seams, pits, or other surface flaws that could affect the pipe’s structural integrity.
Criteria: The surface should be free of any visible defects like blisters, burns, scale, or foreign matter.
Method: Visual inspection can be done under proper lighting and may include the use of magnifying tools to identify minor surface defects.
Dimensional Inspection:
Purpose: To ensure the pipes conform to the specified dimensions, including outer diameter, wall thickness, length, and tolerances.
Tools: Calipers, micrometers, tape measures, and go/no-go gauges are commonly used.
Power generation (boilers, superheaters, HRSGs).
Heat exchangers in chemical, petrochemical, and food processing.
Oil & gas industry, especially in offshore, refining, and high-pressure systems.
Chemical and pharmaceutical processing (resistance to acidic and corrosive environments).
Aerospace, including exhaust systems, fuel lines, and cooling systems.
Nuclear power for steam generators and reactor components.
Automotive exhaust systems and hydraulic applications.
Food and water treatment (non-corrosive systems).
Pharmaceutical and biotech equipment for clean processing.
