| Brand Name: | Jinxi Pipe |
| Model Number: | Seamless steel Pipe |
| MOQ: | 1 |
| Price: | 1500 USD/TON |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 10000000 |
ASTM A53 Type S Pipe Carbon Steel Pipe SCH 40
Description
ASTM A53 Seamless Pipe is a carbon steel pipe manufactured without a welded seam in accordance with ASTM A53/A53M, one of the most widely used standards for general service piping. This seamless pipe (Type S) provides superior strength, uniform wall thickness, and eliminates longitudinal weld seam failure points, making it a reliable choice for mechanical, pressure, and structural applications.
| American Standard | Standard Name |
| ASTM A53 | Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless |
![]()
![]()
ASTM A53 Type S Pipe Chemical Composition
Sources American Standard A53 / A53M TABLE 1 Chemical Requirements
| Chemical Requirements | Type S (seamless) | Type E(electric-resistance welded) | ||
| Grade A | Grade B | Grade A | Grade B | |
| Carbon max. % | 0.25 | 0.3 | 0.25 | 0.3 |
| Manganese % | 0.95 | 1.2 | 0.95 | 1.2 |
| Phosphorous, max. % | 0.05 | 0.05 | 0.05 | 0.05 |
| Sulfur, max. % | 0.045 | 0.045 | 0.045 | 0.045 |
| Copper, max.%A | 0.4 | 0.4 | 0.4 | 0.4 |
| Nickel, max. %A | 0.4 | 0.4 | 0.4 | 0.4 |
| Chromium, max. %A | 0.4 | 0.4 | 0.4 | 0.4 |
| Molybdenum, max. %A | 0.15 | 0.15 | 0.15 | 0.15 |
| Vanadium, max. %A | 0.08 | 0.08 | 0.08 | 0.08 |
| A The combination of these five elements shall not exceed 1.00 %. | ||||
ASTM A53 Type S Pipe Mechanical Properties
Sources American Standard A53 / A53M TABLE 2 Tensile Requirements
| Tensile Requirements | Seamless and Electric-resistance-welded | |
| Grade A | Grade B | |
| Tensile Strength, min., psi | 48000[330] | 60000[415] |
| Yield Strength, min., psi | 30000[205] | 35000[240] |
ASTM A53 Type S Pipe Application
ASTM A53 Type S Pipe Manufacturing Process
The process begins with solid steel rounds, or billets, being cut to a specified length and sent through a walking-beam reheat furnace, where temperatures reach nearly 2,300°F. After exiting the reheat furnace, the preheated rounds are turned into a tube shell in the rotary piercing mill as the billets are cross-rolled between two barrel-shaped rolls at a high speed.
The seamless shells enter mandrel mill, where they are rolled over a retained mandrel to provide the needed OD size and wall thickness for the next process. The process is carefully monitored using a state-of-the-art hot-wall measuring system. The shells are then reheated for final forming in a 24-stand stretch-reducing mill, where outside diameters are formed to customers’ exacting specifications. Wall thickness is again verified using a hot-wall measuring system. After being rotated and advanced on the walking-beam cooling bed, the pipes are batch cut and transferred to an in-process storage area, where they are handled by computer-controlled gantry cranes.
![]()
ASTM A53 Type S Pipe Packing & Loading
a. 1/2"-2"Plain end with black oil paint, caps both ends, bundles with loading belt.
b. 2"-4"Beveled end with black oil paint, caps both ends, bundles with loading belt.
c. 10"-20"Beveled end with black oil paint, caps both ends, loose packed in to container.
![]()
ASTM A53 Type S Pipe Shipping
a.By container
![]()
b.By bulk
![]()