Qingdao Sande Technology Co., LTD
| Payment Terms | D/P,T/T,Western Union |
| Supply Ability | 10000PCS/month |
| Delivery Time | 30 days |
| Packaging Details | Wooden case |
| Durability | Long-lasting |
| Applicalbe Standard | ASTM, ASME, DIN, JIS, ISO, BS, API, EN |
| Application | Industrial Machinery |
| The Tolerance | ±0.01mm |
| Technology | Cold forging |
| Standard | GB, ANSI, DIN, JIS, |
| Process | Forging |
| Processing Methods | Cold working, etc |
| Brand Name | Qingdao Sande Tech Co.,Ltd |
| Model Number | OEM |
| Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. |
| Place of Origin | Qingdao, China |
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Product Specification
| Payment Terms | D/P,T/T,Western Union | Supply Ability | 10000PCS/month |
| Delivery Time | 30 days | Packaging Details | Wooden case |
| Durability | Long-lasting | Applicalbe Standard | ASTM, ASME, DIN, JIS, ISO, BS, API, EN |
| Application | Industrial Machinery | The Tolerance | ±0.01mm |
| Technology | Cold forging | Standard | GB, ANSI, DIN, JIS, |
| Process | Forging | Processing Methods | Cold working, etc |
| Brand Name | Qingdao Sande Tech Co.,Ltd | Model Number | OEM |
| Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. | Place of Origin | Qingdao, China |
| High Light | Forged Stainless Steel Seamless Tubes ，Anodizing Stainless Steel Seamless Tubes ，Forged Mechanical Components | ||
Precision forged stainless steel seamless tubes - anodizing treatment of mechanical components
Description :
Our precision-forged stainless steel seamless tubes are engineered for high-performance mechanical components requiring exceptional strength, corrosion resistance, and dimensional accuracy. Through advanced hot-forging and CNC machining processes, we deliver seamless tubular parts with superior structural integrity compared to conventional welded or cast alternatives. The optional anodizing treatment further enhances surface hardness and wear resistance for demanding industrial applications.
Key Features & Benefits :
✔ Premium Material: Forged from 304/316L or 17-4PH stainless steel for optimal strength-to-weight ratio and chemical resistance
✔ Seamless Construction: Eliminates weld weak points, ideal for high-pressure fluid/gas systems
✔ Precision Machining: CNC-turned to ±0.05mm tolerances for critical bearing/sleeve applications
✔ Anodized Finish:
Technical Specifications :
| Category | Parameter | Specification |
|---|---|---|
| Material | Grade | 304, 316L, 17-4PH, 2205 Duplex (Custom alloys available) |
| Standard | ASTM A312, A790, ASME SA312 | |
| Dimensions | Outer Diameter (OD) | 10-300mm (±0.1% of OD) |
| Wall Thickness | 2-50mm (±5% of thickness) | |
| Length | ≤6 meters (custom lengths available) | |
| Mechanical | Tensile Strength | 515-860 MPa |
| Yield Strength | 205-550 MPa | |
| Elongation | 35-50% | |
| Hardness (Annealed) | ≤90 HRB | |
| Precision | Diameter Tolerance | ±0.05mm (machined surfaces) |
| Straightness | ≤0.1mm per meter | |
| Surface Roughness | Ra 0.4-3.2μm (adjustable) | |
| Anodizing | Type II Anodizing | Thickness: 5-25μm, Salt Spray Resistance: 500-1000hrs |
| Type III Hardcoat | Thickness: 25-100μm, Hardness: ≥60 HRC | |
| Color Options | Clear, Black, Gold, Blue, Red (custom colors available) |
| Performance | Temperature Range | Standard: -200°C to +400°C (Custom: up to 800°C) |
| Pressure Rating | Up to 100MPa (depends on dimensions) | |
| Corrosion Resistance | Excellent (ASTM G48 tested) | |
| Certifications | Quality Standards | ISO 9001, AS9100, PED 2014/68/EU |
| Material Traceability | Full MTC with chemical composition and mechanical properties | |
| Testing | Non-Destructive Testing | Eddy Current, Ultrasonic, Hydrostatic (100% tested) |
| Dimensional Inspection | CMM measurement available |
Technical Specifications :
Outer Diameter: 10mm - 300mm (custom sizes available)
Wall Thickness: 2mm - 50mm
Surface Roughness: Ra 0.8μm (mirror finish achievable)
Certifications: ISO 9001, ASME B36.19M, PED 2014/68/EU
FAQ:
1. What are the advantages of forged seamless tubes vs. welded tubes?
Superior Strength: No weld seams eliminate weak points (30% higher fatigue life)
Better Integrity: Homogeneous grain structure from hot forging
Higher Pressure Rating: Withstand 2-3x more internal pressure than welded equivalents
Precision: Tighter OD/ID tolerances (±0.05mm achievable)
2. Which stainless steel grades do you recommend for specific environments?
304: General corrosion resistance (food, chemical)
316L: Marine/offshore (chloride resistance)
17-4PH: High-strength applications (aerospace)
2205 Duplex: Extreme corrosion + stress corrosion cracking resistance
3. Can you achieve mirror finishes on internal surfaces?
Yes, we provide:
Mechanical polishing: Ra ≤0.2μm (ID ≥15mm)
Electropolishing: For micro-smooth surfaces (FDA-compliant)
4. What certifications do your tubes comply with?
Quality: ISO 9001, AS9100
Material: ASTM A312/A790, EN 10216-5
Pressure: PED 2014/68/EU (Category IV)
Special: NACE MR0175 for sour service
5. How do you test tube quality?
100% Dimensional: Laser gauging + CMM
Material: Eddy current + ultrasonic testing
Pressure: Hydrostatic testing to 1.5x rated pressure
Surface: Salt spray (ASTM B117) + hardness testing
Customer Commitment
We strive to deliver exceptional products and services, ensuring that every fitting meets the highest standards of quality and reliability. Choose us for your carbon steel forged pipe fitting needs and experience the difference in secure connections.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2018
Employee Number:
>63
Ecer Certification：
Verified Supplier
Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua... Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua...
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