Steel Slip On Flange
Standard: ASTM A105, ASTM A182
Material: Carbon Steel, Alloy Steel, Stainless Steel
Size: 1/2'' to 24'', customized up to 60''
Pressure Ratings: Class 150 to Class 2500
Face Type: RF, RTJ
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Product Introduction
Steel Slip On Flange
Steel Slip On Flange Manufacturer
Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd. leads the industry with over 40 a long time of steel slip on flange fabricating ability. Our progressed 7,000+ square meter office produces premium slip-on ribs assembly strict quality guidelines. With yearly deals surpassing RMB 100 million and month to month shipments over 50 holders, we convey solid arrangements around the world. Our Steel Slip On Rib items comply with ASME/ANSI B16.5, EN 1092-1, and Clamor guidelines, advertising weight appraisals from Course 150 to 1500 for your basic applications.
Steel Slip On Flange Overview
A product is built to slide over the pipe conclusion and secure with double filet welds—internal and outside. The flange's inner breadth surpasses the pipe's external distance across, making arrangement easier than weld neck spines. These spines exceed expectations in low-to-medium weight applications where cost-effectiveness and establishment ease matter most. You'll discover them culminate for water treatment frameworks, low-pressure oil lines, and mechanical cooling applications where space imperatives exist.

Key Features & Advantages
Simplified Establishment Prepare: You can pivot the spine on the pipe some time recently welding, making jolt gap arrangement easy compared to weld neck alternatives.
Cost-Effective Arrangement: Lower introductory costs and decreased pipe arrangement time make these ribs temperate for your budget-conscious projects.
Dual Welding Plan: Both center and inner bore welding guarantees leak-proof associations and auxiliary judgment for direct weight systems.
Space-Saving Profile: Compact plan with lower center tallness fits tight spaces where longer spines would meddled with adjoining components.
Excellent Life span: Extraordinary execution in steady-state weight frameworks with negligible warm development requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standards | ASME/ANSI B16.5, ASME B16.47 Series A&B, EN 1092-1, DIN |
| Size Range | 1/2" to 60" (Custom sizes available) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500 / PN6, PN10, PN16, PN25, PN40 |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Materials | Carbon Steel, Stainless Steel, Alloy Steel |
| Temperature Range | -29°C to +400°C (material dependent) |
Standards & Certifications
Our manufacturing processes strictly adhere to international standards including ASME/ANSI B16.5 for standard sizes and ASME B16.47 for large diameter applications. We maintain ISO 9001 quality certification alongside CE and GOST-R compliance. Each flange undergoes rigorous testing using advanced spectrometers and non-destructive testing equipment to ensure dimensional accuracy and material integrity.





Chemical Composition & Mechanical Properties
Carbon Steel (ASTM A105):
- Carbon: ≤0.35%
- Manganese: 0.60-1.05%
- Phosphorus: ≤0.035%
- Sulfur: ≤0.040%
- Silicon: 0.10-0.35%
Stainless Steel 316L:
- Chromium: 16.0-18.0%
- Nickel: 10.0-14.0%
- Molybdenum: 2.0-3.0%
- Carbon: ≤0.03%
Mechanical properties meet or exceed ASTM requirements with yield strength ranging from 250-515 MPa depending on material grade.

Manufacturing Process
Your steel slip on flanges experience accuracy producing or machining forms guaranteeing steady quality. We begin with certified crude materials, at that point continue through controlled warming, shaping, and machining operations. Each step incorporates quality checkpoints with dimensional confirmation and fabric testing. Last review incorporates weight testing and surface wrap up confirmation some time recently packaging.
Surface Finish & Coating Options
Standard wraps up incorporate machined surface with 125-250 RMS unpleasantness. We offer different defensive coatings including:
- Anti-rust oil coating for standard applications
- Hot-dip galvanizing for destructive environments
- Epoxy coating for chemical resistance
- Custom coatings based on your particular requirements
Applications
You'll discover our Steel Slip On Rib perfect for:
- Water treatment and conveyance systems
- Low-pressure oil and gas pipelines
- Chemical preparing plants
- HVAC systems
- Industrial cooling circuits
- Food and refreshment processing
- Power era facilities
These spines perform especially in non-critical administrations where direct weight and temperature conditions exist.

Packaging & Delivery
We ensure your ribs with wooden cases or steel beds depending on estimate and amount. Each bundle incorporates fabric certificates, dimensional reports, and establishment rules. Our coordinations group facilitates around the world shipping with normal conveyance times of 15-30 days depending on goal and arrange complexity.
Customization Service
Our building group gives custom-made arrangements for your interesting necessities. We oblige extraordinary measurements, non-standard weight evaluations, intriguing materials, and custom confronting setups. Whether you require model amounts or full generation runs, we adjust our fabricating capabilities to meet your specifications.
Quality Control
Every flange passes through our comprehensive quality framework featuring:
- Raw fabric certification and testing
- In-process dimensional verification
- Pressure testing per appropriate standards
- Final review and documentation
- Traceability all through production
Our quality group employments calibrated disobedient guaranteeing reliable exactness over all fabricating operations.

FAQ
Q: When should I choose slip-on over weld neck flanges?
A: Select slip-on flanges for Class 150/300 applications where installation ease and cost matter more than extreme pressure resistance.
Q: Why weld both inside and outside?
A: Dual welding ensures structural integrity and prevents fluid contact with the pipe-flange gap, eliminating leak paths and crevice corrosion.
Q: What's the proper pipe insertion depth?
A: Insert the pipe so its end sits back from the flange face by pipe wall thickness plus 3mm, allowing proper internal weld access.
Q: Are these suitable for high-pressure systems?
A: While rated up to Class 1500, slip-on flanges work best in Class 150-600 applications. Higher pressures typically require weld neck designs.
Contact Us
Ready to discuss your steel slip on flange requirements? Contact our technical team at admin@jsfittings.com for expert guidance and competitive pricing.
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