ASTM A179 / A192 Seamless Heat Exchanger Tubes for Condensers & Boilers | OD 6-204mm
Wuxi Hengzhihui supplies seamless heat exchanger tubes in carbon steel and alloy steel grades, compliant with ASTM A179, ASTM A192, ASTM A178, GB/T3087 and GB/T5310. Available in outside diameter range from 6mm to 204mm, these tubes are engineered for shell and tube heat exchangers, condensers, boilers, cooling systems, and industrial thermal equipment. Cold drawn manufacturing ensures precise dimensional accuracy and smooth internal surface for optimal heat transfer efficiency. EN 10204 Type 3.1 certification and third-party inspection (SGS/BV) supported.
Key Specifications
| Parameter | Range / Details |
|---|---|
| Outside Diameter | 6mm – 204mm (custom sizes available) |
| Wall Thickness | 1mm – 30mm (depending on OD and standard) |
| Manufacturing Process | Cold Drawn / Cold Rolled / Hot Finished |
| Surface Condition | Black / Pickled / Bright Annealed |
| Length | Random length (5-12m) or fixed length as per order |
| End Finish | Plain ends / Beveled ends |
| Testing Methods | Hydrostatic Test, Eddy Current Test (ECT), Ultrasonic Test (UT), Tensile Test, Hardness Test, Flattening Test, Flaring Test |
| Documentation | Mill Test Certificate, EN 10204 Type 3.1, Inspection Report, Heat Treatment Report, Dimensional Report |
Available Standards & Grades
| Standard | Grade / Material | Primary Application |
|---|---|---|
| ASTM A179 / ASME SA179 | Low Carbon Steel | Shell and tube heat exchangers, condensers, feed water heaters |
| ASTM A192 / ASME SA192 | Carbon Steel | High pressure heat exchangers, boiler systems, superheaters |
| ASTM A178 / ASME SA178 | Carbon Steel (ERW) | Boilers, heat recovery systems, thermal equipment |
| GB/T3087 | 10#, 20# | Low and medium pressure boiler tubes, heat exchangers |
| GB/T5310 | 20G, 15CrMo, 12Cr1MoVG | High pressure boiler tubes, power plants, high temperature equipment |
Material Options Available:
✅ Carbon Steel — 10#, 20#, SA179, SA192
✅ Alloy Steel — 15CrMo, 12Cr1MoVG (for elevated temperature service)
Product Categories by Application
| Product Type | Standard | Typical End Use |
|---|---|---|
| Seamless Heat Exchanger Tube | ASTM A179 | Shell & tube heat exchangers, condensers, cooling systems |
| Boiler & Heat Exchanger Tube | ASTM A192 | High pressure heat exchangers, boiler systems, power generation |
| Welded Heat Exchanger Tube | ASTM A178 | Heat recovery systems, industrial boilers, thermal equipment |
| Low/Medium Pressure Boiler Tube | GB/T3087 | Industrial boilers, heat exchangers, thermal systems |
| High Pressure Boiler Tube | GB/T5310 | Power plants, high temperature processing equipment |
Why Heat Exchanger Tubes Require Precision
Heat exchanger tubes operate under demanding conditions including:
🔥 High temperature exposure
📈 Pressure fluctuations
🔄 Thermal cycling
⏳ Extended operating hours
A reliable heat exchanger tube requires:
✔ Stable material performance
✔ Accurate dimensional tolerances
✔ Smooth internal surface finish (reduces fouling and improves heat transfer)
✔ Consistent quality from heat to heat
Hengzhihui focuses on supplying tubes that meet these industrial application requirements through rigorous material selection and process control.
Manufacturing Process Capability
| Process | Capability |
|---|---|
| Cold Drawing | High dimensional accuracy, improved surface quality, enhanced mechanical properties |
| Heat Treatment | Annealing, Normalizing, Stress relief treatment — per standard requirements |
| Surface Treatment | Pickling, Phosphating, Bright annealing |
| Cutting & End Finishing | Precise length cutting, plain or beveled ends |
Quality Control Inspection
| Inspection Type | Method / Equipment |
|---|---|
| Chemical Composition | Spectrometer analysis — verification against standard requirements |
| Tensile Testing | Universal testing machine — yield strength, tensile strength, elongation |
| Hardness Testing | Rockwell / Brinell hardness tester |
| Hydrostatic Testing | Pressure test to verify leak-tightness |
| Eddy Current Testing (ECT) | Non-destructive testing for surface and subsurface defects |
| Ultrasonic Testing (UT) | Non-destructive testing for internal defects |
| Dimensional Inspection | Micrometer, caliper, gauge — OD, WT, length verification |
| Visual & Surface Inspection | Surface quality, end finish, straightness |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Power Generation | Boilers, heat recovery systems, steam equipment, feed water heaters |
| Petrochemical | Process heat exchangers, condensers, thermal processing units |
| Chemical Industry | Heat transfer systems, thermal processing equipment |
| Industrial Manufacturing | Cooling systems, industrial machinery, HVAC equipment |
| Marine & Offshore | Marine boilers, heat exchangers on ships and platforms |
Customization Support
We understand that each project has unique requirements. We support:
✅ Custom outside diameters and wall thicknesses
✅ Special heat treatment conditions (normalized, annealed, quenched & tempered)
✅ Non-standard lengths and end finishes
✅ Additional testing or third-party inspection (SGS, BV, TÜV)
✅ Small trial orders before mass production
✅ Customized packaging and labeling
Why Choose Hengzhihui for Heat Exchanger Tubes?
| Advantage | Description |
|---|---|
| Specialized Product Focus | Dedicated to industrial tubes — heat exchanger, boiler, pressure, and precision tubes |
| International Standard Experience | Proven capability in ASTM, ASME, EN, DIN, and GB specifications |
| China Manufacturing Network | Qualified production partners with rigorous quality management |
| End-to-End Service | From inquiry → technical review → production coordination → inspection → delivery |
| Responsive Communication | Technical queries answered promptly with clear solutions |
Packaging & Delivery
| Packaging | Standard export bundle packing with steel strips. Protective plastic caps on both ends. Wooden cases for precision tubes upon request. |
|---|---|
| Container Loading | 20ft / 40ft containers, with careful loading to prevent damage during transit |
| Port of Loading | Shanghai / Ningbo / Guangzhou |
| Delivery Time | 15–30 days after order confirmation, depending on quantity and specifications |
Technical Data Table — Quick Reference
| Product | Standard | Material | Primary Application |
|---|---|---|---|
| Seamless Heat Exchanger Tube | ASTM A179 | Low Carbon Steel | Heat Exchanger / Condenser |
| Boiler & Heat Exchanger Tube | ASTM A192 | Carbon Steel | High Pressure System |
| Welded Heat Exchanger Tube | ASTM A178 | Carbon Steel | Boiler / Heat Transfer |
| Low/Medium Pressure Boiler Tube | GB/T3087 | 10#, 20# | Boiler / Thermal System |
| High Pressure Boiler Tube | GB/T5310 | 20G / Alloy Steel | Power Plant / High Temp |
FAQ
| Question | Answer |
|---|---|
| What heat exchanger tubes do you supply? | We mainly supply ASTM A179, ASTM A192, ASTM A178, GB/T3087 and GB/T5310 standard tubes. |
| What is your tube size range? | Our seamless tube capability covers OD 6mm to 204mm. |
| Can you provide third-party inspection? | Yes. Inspection can be arranged by SGS, BV, TÜV or other agencies per customer requirements. |
| Do you supply customized sizes? | Yes. We support customized dimensions, materials, testing requirements and project specifications. |
| What documentation do you provide? | Mill Test Certificate, EN 10204 Type 3.1, Inspection Report, and Dimensional Report. |
Send Inquiry
To receive a tailored quotation for your heat exchanger tube project, please provide:
Standard and grade (e.g., ASTM A179 / ASTM A192 / GB/T3087 20#)
Outside diameter and wall thickness
Total quantity (pieces or metric tons)
Required length and end finish
Any special testing or certification requirements
📩 Click "Send Inquiry" or contact us directly with your specifications — we will respond within 24 hours.
Contact Us
WUXI HENGZHIHUI METAL MATERIALS CO., LTD
EMAIL: yjhtrade@gmail.com
Phone/Whatsapp:+86 15106174543
www.wuxihengzhihui.com/ www.hzhmetals.com
