ASTM A688 Welded Stainless Steel Tubes
1. Grade: TP304 / TP304L, TP316 / TP316L
2. Standard: ASTM A688
3. Manufacturing Process: Seamless & Welded
4. OD: 12.7 mm – 114.3 mm
5. Wall Thickness: 0.5 mm – 5 mm
6. Delivery Condition: Solution annealed
7. Certification: ISO9001, PED, ISO 17025 lab, TÜV certified manufacturer
Core Functions and Application:
Applied in condensers and heat exchangers requiring enhanced inspection and reliable performance.
Description
ASTM A688 Welded Stainless Steel Tubes for Heat Exchanger Applications
When your warm exchanger or condenser venture requests unwavering quality and exactness, ASTM A688 Welded Stainless Steel Tubes from YOUFASS provide enterprise-grade execution. Our tubes are fabricated over 15 devoted generation lines with an yearly capacity of 50,000 tons, serving over 200 experts committed to quality. Accessible in TP304, TP304L, TP316, and TP316L grades, these tubes cover exterior distances across from 12.7 mm to 114.3 mm and divider thicknesses from 0.5 mm to 5 mm. We're certified to ISO9001, PED, ISO 17025, and TÜV measures, guaranteeing each tube meets thorough assessment conventions for condenser and warm exchange administrations beneath destructive conditions.
Why Choose Our ASTM A688 Welded Stainless Steel Tubes
You require tubes that won't let you down. Our ASTM A688 Welded Stainless Steel Tubes are purpose-built for requesting warm exchanger situations where weld keenness and erosion resistance matter most.
Built for Tough Conditions
Heat exchangers work beneath consistent warm stretch and destructive introduction. Our tubes experience arrangement strengthening warm treatment to optimize their microstructure. This prepare upgrades erosion resistance and mechanical stability.
Whether you're working with water treatment frameworks, HVAC establishments, or petrochemical plants, these tubes keep up execution over time.
Quality From Start to Finish
We control each generation stage:
- Traceable crude materials from recognized steel sources
- In-house testing lab certified to ISO 17025 standards
- Comprehensive assessment counting ultrasonic and radiographic testing
- Full documentation with MTC/MTR 3.1/3.2, TPI, WPS/PQR, MPS, and UT/RT reports
You get tubes you can introduce with confidence.
Flexible Manufacturing Options
Your extend necessities shift. We adjust to them:
- Random length, settled length, or U-bent configurations
- Welded development optimized for reliable divider thickness
- MOQ of fair 1 pipe for model and upkeep needs
- 7-day speediest conveyance to Tianjin Port for critical orders
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | ASTM A688 |
| Grades | TP304, TP304L, TP316, TP316L |
| Outside Diameter (OD) | 12.7 mm – 114.3 mm |
| Wall Thickness (WT) | 0.5 mm – 5 mm |
| Length | Random length / Fixed length / U-bent |
| Manufacturing Process | Welded |
| Heat Treatment | Solution annealed |
| Packaging | Wooden box with optional steel frame, hexagonal binding + woven bag |
| Delivery Condition | Solution annealed, ready for installation |
Where You'll Use These Tubes
Our stainless steel warm exchanger tubes serve basic applications over industries:
Industrial Heat Transfer
Condensers, shell-and-tube heat exchangers, and evaporator frameworks advantage from prevalent erosion resistance and warm conductivity.
Water & Marine Systems
Water treatment offices and seawater cooling frameworks depend on 316L grades for chloride resistance.
Building Services
HVAC frameworks, sun based warm establishments, and vitality recuperation units utilize our ASTM A688 Welded Stainless Steel Tubes for effective warm transfer.
Process Industries
Food and refreshment preparing, pharmaceutical fabricating, and petrochemical plants request clean, solid tubing solutions.






What Makes YOUFASS Different
Scale Meets Agility
As a Top 500 endeavor in China, we combine generation capacity with responsive benefit. Our 50,000-ton yearly yield guarantees accessibility, whereas our adaptable MOQ bolsters both huge ventures and small-scale requirements.
Complete Project Support
You're not fair buying tubes. You're picking up a partner:
- Technical back for fabric determination and specification
- On-site commissioning help when needed
- End-to-end venture coordination
- Long-term supply assentions for multi-phase projects
Documentation You Can Trust
Every shipment incorporates comprehensive documentation. Your quality affirmation group gets test reports, fabric certificates, and compliance records that fulfill worldwide guidelines and venture audits.






Standards and Certifications:
- ISO 9001 Quality Management
- PED (Pressure Equipment Directive)
- TÜV certification.

Fexible requesting, quick delivery:
Need a test? Arrange fair one pipe. Arranging a major venture? We'll facilitate end-to-end supply. With quickest conveyance in 7 days to Tianjin Harbour, your plan remains on track.








Clients' approval & trust

Frequently Asked Questions
Q: What is special about ASTM A688 tubes?
A: They are particularly outlined for condenser and heat exchanger administrations with strict weld quality and testing necessities. This standard guarantees improved review conventions and solid execution beneath destructive heat transfer conditions.
Q: Are ASTM A688 tubes suitable for seawater environments?
A: Yes, corrosion-resistant grades such as 316L offer good performance in chloride-containing environments. The molybdenum content in 316L provides additional protection against pitting and crevice corrosion in marine applications.
Q: What sizes are available for ASTM A688 tubing?
A: A wide range of diameters and wall thicknesses can be customized according to project specifications. Our production lines accommodate dimensions from 12.7 mm to 114.3 mm OD with wall thicknesses from 0.5 mm to 5 mm.
Ready to Start Your Project?
Contact our technical team at info@youfass.com to discuss your heat exchanger tube requirements for ASTM A688 Welded Stainless Steel Tubes and receive a detailed quotation.
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