Shanxi Zhongcheng Metal Co., Ltd.
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal |
| Supply Ability | 10000tons |
| Delivery Time | 15-25days |
| Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA |
| Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available |
| Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg |
| Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons |
| Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 |
| Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA |
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Product Specification
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal | Supply Ability | 10000tons |
| Delivery Time | 15-25days | Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA | Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available | Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg | Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons | Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 | Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA | ||
| High Light | Seamless Heater Tube ，Cold Drawn Heater Tube ，ASTM A556 Heater Tube | ||
ASTM A556 / A556M is the standard specification for seamless cold-drawn carbon steel tubes used primarily in tubular feedwater heaters. These tubes are manufactured with minimum wall thickness and can be supplied as straight lengths or bent into U-tubes as specified by the customer.
ASTM A556 Seamless Heater Tubes are critical components in power generation facilities and boiler systems, where they serve to preheat feedwater before it enters the boiler drum. By recovering waste heat from turbine extraction steam, these tubes significantly improve the thermal efficiency of the entire power plant.
The cold-drawn seamless manufacturing process ensures precise dimensional tolerances, a smooth internal surface, and uniform grain structure, making ASTM A556 tubes the industry standard for high-pressure feedwater heater applications.
Key Features:
Available Grades: A2, B2, C2 (Grade C2 offers the highest strength)
| Parameter | Details |
|---|---|
| Standard | ASTM A556 / A556M (also ASME SA 556) |
| Product Type | Seamless Cold-Drawn Carbon Steel Tube |
| Primary Application | Tubular Feedwater Heaters, Boilers |
| Outer Diameter Range | 5/8″ – 1-1/4″ (15.9 mm – 31.8 mm) |
| Minimum Wall Thickness | ≥ 0.045″ (≥ 1.1 mm) |
| Length | 3m – 12m (custom lengths available) |
| Available Grades | A2, B2, C2 |
| Delivery Condition | As-drawn (NBK), Bright Annealed, U-bent |
| End Finish | Plain ends, Beveled ends, U-bends |
ASTM A556 Seamless Heater Tubes Manufacturing Process:
The tubes are manufactured using a seamless process followed by cold drawing to achieve precise dimensions and improved mechanical properties.
Heat Treatment:
After the final cold-drawn pass, tubes are heat-treated at 1200°F (640°C) or higher to ensure adequate ductility for rolling into tube sheets and to meet specified mechanical property requirements.
| Element | Grade A2 (%) | Grade B2 (%) | Grade C2 (%) |
|---|---|---|---|
| Carbon (C), max | 0.18 | 0.27 | 0.30 |
| Manganese (Mn) | 0.27 – 0.63 | 0.29 – 0.93 | 0.27 – 1.06 |
| Phosphorus (P), max | 0.035 | 0.035 | 0.035 |
| Sulfur (S), max | 0.035 | 0.035 | 0.035 |
| Silicon (Si), min | 0.10 | 0.10 | 0.10 |
Note: Silicon is specified as a minimum requirement for all grades to ensure proper deoxidation and steel quality.
| Property | Grade A2 | Grade B2 | Grade C2 |
|---|---|---|---|
| Tensile Strength, min | 320 MPa (47 ksi) | 410 MPa (60 ksi) | 480 MPa (70 ksi) |
| Yield Strength, min | 180 MPa (26 ksi) | 260 MPa (38 ksi) | 280 MPa (40 ksi) |
| Elongation (2″ or 50mm), min % | 35% | 35% | 35% |
| Hardness (HRB) | 72 typical | 79 min | 89 max |
Physical Properties (Typical for Carbon Steel):
| Property | Value |
|---|---|
| Density | 7.8 – 7.9 g/cm³ |
| Modulus of Elasticity | 200 – 215 GPa |
| Maximum Service Temperature | 500°C (932°F) |
| Melting Point | 1480 – 1526°C |
| Thermal Conductivity | 25 – 93 W/(m·K) |
ASTM A556 tubes are frequently supplied in U-bend configurations for feedwater heater applications. When U-bends are specified:
Advantages of U-tube design:
| Grade | Strength Level | Typical Applications |
|---|---|---|
| A2 | Lowest (47 ksi UTS) | Low-pressure feedwater heaters, less demanding service |
| B2 | Intermediate (60 ksi UTS) | Standard duty feedwater heaters, most commonly specified |
| C2 | Highest (70 ksi UTS) | High-pressure feedwater heaters, severe service conditions |
Note: Grades B2 and C2 are the most commonly specified for power plant feedwater heater applications.
For ASTM A556 Seamless Heater Tubes inquiries, quotes, or technical support regarding ASTM A556 feedwater heater tubes, please contact us now
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
20000000-50000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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