Stub Ends Long Collar Stainless Steel Butt Weld Pipe Fittings
Stub Ends Long Collar Stainless Steel Butt Weld Pipe Fittings
►Products description
Engineered for superior performance, our stainless steel butt welded stub ends provide the perfect transition between flanges and piping systems. Manufactured from premium 304/316/316L/321 and duplex stainless steels, these components deliver:
- Flange Compatibility: Precision-machined to match all standard flange facings (RF, FF, RTJ)
- System Integrity: Seamless butt-weld connection ensures leak-proof performance
- Corrosion Resistance: Withstands aggressive media in chemical, marine, and petrochemical applications
- Dimensional Precision: Strict adherence to ASME B16.9, ANSI B16.25, and MSS SP-43 standards
Manufacturing Superiority:
Our advanced production capabilities include:
State-of-the-Art Fabrication:
- CNC-controlled machining with ±0.02mm tolerance
- Automated orbital welding with full penetration welds
- In-house heat treatment facilities for stress relief
Comprehensive Quality Assurance:
- 100% material certification with full traceability
- Ultrasonic thickness testing at multiple points
Inventory & Supply Chain Advantages:
Our strategically stocked inventory features:
- Immediate Availability: 1,500+ standard configurations ready for shipment
- Complete Size Range: ½" to 48" in all pressure classes (150# to 2500#)
- Material Options: Including super duplex, 6Mo, and high-temperature grades
- Special Finishes: Electropolished, passivated, or sandblasted surfaces
Enterprise Strengths:
- 99.2% on-time delivery performance
- Custom engineering with 72-hour prototype turnaround
- Sustainable manufacturing with full environmental compliance
Technical Advantages:
- Optimized design for easy flange alignment and installation
- Available in short and long pattern configurations
- Matching lap joint flanges available from stock
Trust our stainless steel butt welded stub ends for critical flanged connections where precision and reliability matter. Our engineering support team stands ready to assist with technical specifications and urgent project requirements 24/7. Contact us today for immediate quotations and inventory availability.
►Industry-specific attributes
| Place of Origin | China |
| Brand name | Yuhao |
| Connectivity | Welding |
| Size | 1/2" up to 48" |
| Wall thickness | SCH 5s-SCH XXS |
| customized Support | ASTM DIN EN BS JIS GOST etc. |
| Surface treatment | Sand blasting, Roll blasting, Pickled or Polished |
| Type | Long or Short |
| Pressure | High Pressure |
| Packing | Cartons, Pallet, Cases |
►Product Size
| DN | NPS | OD | Nominal Wall Thickness | ||||||||||
| Schss | Sch10S | Sch405 | Sch8os | Sch10 | Sch20 | Sch30 | STD | Sch40 | Sch60 | XS | |||
| 6 | 1/8 | 10.3 | - | 1.24 | 1.73 | 2.41 | - | - | - | 1.73 | 1.73 | - | 2.41 |
| 8 | 1/4 | 13.7 | 1.65 | 2.24 | 3.02 | - | - | - | 2.24 | 2.24 | - | 3.02 | |
| 10 | 3/8 | 17.1 | - | 1.65 | 2.31 | 3.2 | - | - | - | 2.31 | 2.31 | - | 3.2 |
| 15 | 1/2 | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 | - | - | - | 2.77 | 2.77 | - | 3.73 |
| 20 | 3/4 | 26.7 | 1.65 | 2.11 | 2.87 | 3.91 | - | - | - | 2.87 | 2.87 | - | 3.91 |
| 25 | 1 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 | - | - | - | 3.38 | 3.38 | - | 4.55 |
| 32 | 1 1/4 | 42.2 | 1.65 | 2.77 | 3.56 | 4.85 | - | - | - | 3.56 | 3.56 | - | 4.85 |
| 40 | 1 1/2 | 48.3 | 1.65 | 2.77 | 3.68 | 5.08 | - | - | - | 3.68 | 3.68 | - | 5.08 |
| 50 | 2 | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 | - | - | - | 3.91 | 3.91 | - | 5.54 |
| 65 | 2 1/2 | 73 | 2.11 | 3.05 | 5.16 | 7.01 | - | - | - | 5.16 | 5.16 | - | 7.01 |
| 80 | 3 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 | - | - | - | 5.49 | 5.49 | - | 7.62 |
| 90 | 3 1/2 | 101.6 | 2.11 | 3.05 | 5.74 | 8.08 | - | - | - | 5.74 | 5.74 | - | 8.08 |
| 100 | 4 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 | - | - | - | 6.02 | 6.02 | - | 8.56 |
| 125 | 5 | 141.3 | 2.77 | 3.4 | 6.55 | 9.53 | - | - | - | 6.55 | 6.55 | - | 9.53 |
| 150 | 6 | 168.3 | 2.77 | 3.4 | 7.11 | 10.97 | - | - | - | 7.11 | 7.11 | - | 10.97 |
| 200 | 8 | 219.1 | 2.77 | 3.76 | 8.18 | 12.7 | - | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.7 |
| 250 | 10 | 273 | 3.4 | 4.19 | 9.27 | 12.7 | - | 6.35 | 7.8 | 9.27 | 9.27 | 12.7 | 12.7 |
| 300 | 12 | 323.8 | 3.96 | 4.57 | 9.53 | 12.7 | - | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.7 |
| 350 | 14 | 355.6 | 3.96 | 4.78 | - | - | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.7 |
| 400 | 16 | 406.4 | 4.19 | 4.78 | - | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 16.66 | 12.7 | |
| 450 | 18 | 457 | 4.19 | 4.78 | - | - | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.7 |
| 500 | 20 | 508 | 4.78 | 5.54 | - | - | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 20.62 | 12.7 |
►Factroy Shoot
►FAQ
Q1: What is product can you buy from YUHAO?
A: Various sizes and models of flanges and pipe fittings, and we accept customized.
Q2: How is quality ensured?
A: Once your order is confirmed, we will perform a full review to point out any issues that our engineers feel may affect the quality of your parts. Each batch of goods must have QC inspections for many times.
Q3: How is the after-sales service?
A: Quality are promised. If our products are not meet the contract we would like to send free goods to you.
Q4: Do YUHAO provide samples?
A: Why not, and stored samples are totally free. What we are going to tell you is that we do NOT have budget for Express.
Q5: Can you print our logo or company name?
A: Yes, we can print or insert your logo or company's name if the order is based on our MOQ forOEM or ODM arrangement.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.