Central Steel
Central Steel
Central Steel
Key Specifications
Diameter: 1/2 inch to 24 inches (21.34 mm to 609.6 mm)
Wall Thickness: 1.65mm-50mm
Standards: ASTM A312, ASTM A213, EN 10216-5, JIS G3459
Material: 304/304L, 316/316L, 321, 310S, 904L, Duplex 2205
Production Process
Billet Preparation: High-quality stainless steel billets are heated to a high temperature.
Extrusion: The billet is extruded through a die to form a hollow shell.
Cold Drawing: The pipe is further processed through cold drawing to achieve precise dimensions and surface finish.
Heat Treatment: Solution annealing is performed to restore microstructure and enhance properties.
Inspection: The pipes undergo rigorous testing, including ultrasonic and hydrostatic tests, to ensure quality.
|
Outside Diameter NPS |
Outside Diameter (mm) |
Nominal Wall Thickness (mm) |
||||||||
|
ASME B36.19M |
ASME B36.10M |
|||||||||
|
SCH 5S |
SCH 10S |
SCH 40S |
SCH 80S |
SCH 5 |
SCH 10 |
SCH 20 |
STD |
XS |
||
|
1/2 |
21.34 |
1.65 |
2.11 |
2.77 |
3.73 |
1.65 |
2.11 |
— |
2.77 |
3.73 |
|
3/4 |
26.67 |
1.65 |
2.11 |
2.87 |
3.91 |
1.65 |
2.11 |
— |
2.87 |
3.91 |
|
1 |
33.4 |
1.65 |
2.77 |
3.38 |
4.55 |
1.65 |
2.77 |
— |
3.38 |
4.55 |
|
1 1/4 |
42.16 |
1.65 |
2.77 |
3.56 |
4.85 |
1.65 |
2.77 |
— |
3.56 |
4.85 |
|
1 1/2 |
48.26 |
1.65 |
2.77 |
3.68 |
5.08 |
1.65 |
2.77 |
— |
3.68 |
5.08 |
|
2 |
60.33 |
1.65 |
2.77 |
3.91 |
5.54 |
1.65 |
2.77 |
— |
3.91 |
5.54 |
|
2 1/2 |
73.03 |
2.11 |
3.05 |
5.16 |
7.01 |
2.11 |
3.05 |
— |
5.16 |
7.01 |
|
3 |
88.9 |
2.11 |
3.05 |
5.49 |
7.62 |
2.11 |
3.05 |
— |
5.49 |
7.62 |
|
3 1/2 |
101.6 |
2.11 |
3.05 |
5.74 |
8.08 |
2.11 |
3.05 |
— |
5.74 |
8.08 |
|
4 |
114.3 |
2.11 |
3.05 |
6.02 |
8.56 |
2.11 |
3.05 |
— |
6.02 |
8.56 |
|
5 |
141.3 |
2.77 |
3.4 |
6.55 |
9.53 |
2.77 |
3.4 |
— |
6.55 |
9.53 |
|
6 |
168.28 |
2.77 |
3.4 |
7.11 |
10.97 |
2.77 |
3.4 |
— |
7.11 |
10.97 |
|
8 |
219.08 |
2.77 |
3.76 |
8.18 |
12.7 |
2.77 |
3.76 |
6.35 |
8.18 |
12.7 |
|
10 |
273.05 |
3.4 |
4.19 |
9.27 |
12.7 |
3.4 |
4.19 |
6.35 |
9.27 |
12.7 |
|
12 |
323.85 |
3.96 |
4.57 |
9.53 |
12.7 |
3.96 |
4.57 |
6.35 |
9.53 |
12.7 |
|
14 |
355.6 |
3.96 |
4.78 |
9.53 |
12.7 |
3.96 |
6.35 |
7.92 |
9.53 |
12.7 |
|
16 |
406.4 |
4.19 |
4.78 |
9.53 |
12.7 |
4.19 |
6.35 |
7.92 |
9.53 |
12.7 |
|
18 |
457.2 |
4.19 |
4.78 |
9.53 |
12.7 |
4.19 |
6.35 |
7.92 |
9.53 |
12.7 |
|
20 |
508 |
4.78 |
5.54 |
9.53 |
12.7 |
4.78 |
6.35 |
9.53 |
9.53 |
12.7 |
|
22 |
558.8 |
4.78 |
5.54 |
|
|
4.78 |
6.35 |
9.53 |
9.53 |
12.7 |
|
24 |
609.6 |
5.54 |
6.35 |
9.53 |
12.7 |
5.54 |
6.35 |
9.53 |
9.53 |
12.7 |
Classification
|
Category |
ASTM Standard |
Definition |
|
Industrial Pressure Pipe |
ASTM A312 |
Standard for seamless austenitic stainless steel pipes used in industrial, pressure, and corrosion-resistant piping systems. |
|
Boiler & Heat Exchanger Tube |
ASTM A213 |
Standard for seamless ferritic and austenitic alloy steel tubes used in boilers, superheaters, and heat exchangers. |
|
General Service Tubing |
ASTM A269 |
Standard for seamless austenitic stainless steel tubing intended for general service applications. |
|
High-Temperature Power Station Pipe |
ASTM A376 |
Standard for seamless austenitic stainless steel pipe designed for high-temperature central-station service. |
|
Duplex Stainless Tubing |
ASTM A789 |
Standard for seamless ferritic/austenitic (duplex) stainless steel tubing for general service. |
|
Duplex Stainless Pipe |
ASTM A790 |
Standard for seamless ferritic/austenitic (duplex) stainless steel pipe for industrial and pressure applications. |
|
Ferritic / Martensitic Tubing |
ASTM A268 |
Standard for seamless ferritic and martensitic stainless steel tubing for general and heat-resistant service. |
|
Small-Diameter Precision Tubing |
ASTM A632 |
Standard for seamless small-diameter austenitic stainless steel tubing used in precision and instrumentation applications. |
|
Mechanical Tubing |
ASTM A511 |
Standard for seamless stainless steel mechanical tubing and hollow bar for machining and mechanical applications. |
|
General Requirements Standard |
ASTM A1016 / A1016M |
General specification covering testing, inspection, tolerances, chemical composition, and technical requirements for stainless steel and alloy steel tubes. |
Applications
Oil and gas exploration and refining
Power generation (boiler and heat exchanger tubes)
Pharmaceutical and biotechnology industries
High-pressure hydraulic systems
Nuclear and thermal power plants
Advantages
Language
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