Custom Steel Flange
Size Range: From small-bore precision flanges to ultra-large diameters up to 5000mm (200").
Material Versatility:
Carbon Steel: A105, Q235B, S235JR, A36.
Stainless Steel: 304/L, 316/L, 321, 310S, 904L.
Special Alloys: Duplex S31803/S32205, Inconel, Monel, Hastelloy.
Pressure Ratings: From low-pressure vacuum flanges to Class 2500 / PN400 high-pressure ratings.
Facing Options: Special grooves (O-ring), Tongue & Groove, Ring Type Joint (RTJ), or custom serrated finishes.
Machining: High-precision CNC turning, drilling, and milling for tight tolerance control.
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Custom Steel Flange - Professional Pipeline Solutions
Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd brings you over 40 a long time of ability in custom steel flange fabricating. Our present day 7,000+ square meter office conveys premium fashioned ribs with yearly deals surpassing RMB 100 million and month to month shipments outperforming 50 holders. Through progressed producing forms, we make predominant grain structures that withstand extraordinary weights and warm cycles. Our product arrangements meet ASME, Din, and JIS benchmarks, serving 30+ nations with demonstrated unwavering quality in basic oil, gas, and mechanical applications.
Custom Steel Flange Overview
When you require solid pipeline associations, our product items provide unmatched execution and solidness. Each product experiences high-pressure mechanical fashioning that makes refined grain structures, killing inside porosities common in cast choices. This fabricating approach guarantees your pipeline frameworks keep up leak-proof seals beneath the most requesting conditions.
Our comprehensive run incorporates Weld Neck, Slip-On, Blind, Socket Weld, Threaded, and Lap Joint arrangements. Whether you're working on seaward stages, chemical preparing plants, or control era offices, our ribs give the auxiliary astuteness your ventures demand.
Key Features & Advantages
Superior Grain Structure: Our manufacturing prepare disposes of inside gas pockets, conveying higher weariness resistance than cast choices. This implies your spines handle jolt fixing push and inner weight changes with confidence.
Precision Gasket Surfaces: CNC machining centers make correct serrated or smooth wraps up on spine faces. Your gaskets situate superbly, avoiding expensive spills in high-vacuum or high-pressure environments.
Perfect Field Fit-up: We keep up strict resiliences on jolt gap arrangement and thickness. Your establishment groups spare time and labor costs with spines that adjust flawlessly with existing equipment.
Verified Pressure Ratings: Each spine meets particular Pressure-Temperature appraisals of worldwide guidelines, permitting secure determination in basic refinery and chemical infrastructure.
Protective Coatings: Mechanical dark finish, yellow oil, or hot-dip galvanizing secures against erosion amid travel and capacity, guaranteeing ready-to-install condition upon arrival.
Technical Specifications
| Parameter | Specification |
|---|---|
| Size Range | 1/2" to 60" (DN15-DN1500) |
| Pressure Classes | 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Types | WN, SO, BL, SW, TH, LJ |
| Facing Types | RF, FF, RTJ, M&F |
| Materials | A105, A350 LF2, A182 F304/316 |
| Temperature Range | -29°C to 450°C (-20°F to 842°F) |
Standards & Certifications
Our custom steel flange products comply with multiple international standards:
- ASME/ANSI B16.5: 1/2" to 24" standard pipe sizes
- ASME B16.47 Series A & B: 26" to 60" large diameter flanges
- DIN/EN 1092-1: European metric standards
- JIS B2220: Japanese Industrial Standards
- GOST 12821: Russian Federation standards
Quality certifications include ISO 9001, CE marking, and GOST-R compliance, backed by advanced testing equipment including spectrometers and non-destructive testing capabilities.
Chemical Composition & Mechanical Properties
| Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Yield Strength (MPa) | Tensile Strength (MPa) |
|---|---|---|---|---|---|---|---|
| A105 | ≤0.35 | 0.60-1.05 | ≤0.035 | ≤0.040 | 0.10-0.35 | ≥250 | 485-620 |
| A350 LF2 | ≤0.30 | 0.60-1.35 | ≤0.035 | ≤0.040 | 0.15-0.30 | ≥250 | 485-620 |
Manufacturing Process
Our multi-stage manufacturing handle starts with fabric review utilizing spectrometer examination. Crude steel experiences controlled warming to ideal manufacturing temperatures, taken after by accuracy kick the bucket fashioning that refines grain structure.
Heat treatment normalizes inner stresses whereas keeping up required mechanical properties. CNC machining accomplishes correct measurements and surface wraps up. Last review incorporates dimensional confirmation, surface quality checks, and weight testing some time recently defensive coating application.
Surface Finish & Coating Options
Standard Finishes:
- Black enamel coating for common applications
- Yellow oil treatment for short-term protection
- Hot-dip galvanizing for expanded erosion resistance
Premium Options:
- Epoxy coating frameworks for chemical environments
- Stainless steel overlay for upgraded erosion protection
- Custom color coding for framework identification
Applications
Your custom steel flange arrangements serve different industries:
Oil & Gas: Upstream penetrating operations, midstream pipeline associations, downstream refinery systems
Petrochemical: Prepare hardware associations, reactor vessel interfacing, capacity tank systems
Power Era: Steam line associations, cooling water frameworks, fuel dealing with equipment
Mining: Slurry transport frameworks, handle water lines, concentrate handling
Marine: Balance frameworks, cargo dealing with, seaward stage connections
Packaging & Delivery
We ensure your venture with proficient bundling arrangements. Wooden boxes anticipate harm amid worldwide shipping, whereas plastic caps watch spine faces from defilement. Person wrapping keeps up surface coatings all through transit.
Standard conveyance plans extend from 15-30 days depending on details and amounts. Express choices accessible for pressing prerequisites. Our experienced coordinations group arranges with trusted cargo forwarders for solid, cost-effective shipping worldwide.
Customization Service
Beyond standard arrangements, we build custom arrangements for one of a kind applications. Our specialized group collaborates on uncommon materials, non-standard measurements, and altered plans. Whether you require outlandish combination compositions or specialized confronting setups, we provide built arrangements that meet your correct prerequisites.
Quality Control
Every product undergoes rigorous quality verification. Material certificates trace steel composition to original mill sources. Dimensional inspection confirms compliance with drawing specifications. Pressure testing validates performance ratings. Final visual inspection ensures surface quality standards.
Our quality management system follows ISO 9001 principles, with documented procedures covering every manufacturing step. Independent third-party inspection services available upon request.
FAQ
Q: What's the difference between ASME B16.5 and B16.47 flanges?
A: B16.5 covers sizes 1/2" to 24", while B16.47 handles larger diameters 26" to 60". B16.47 includes Series A for heavy-duty applications and Series B for lighter-weight designs.
Q: When should I specify RTJ facing over RF?
A: RTJ faces suit high-pressure applications (Class 600+) or high-temperature service. Metal ring gaskets in machined grooves create stronger seals than standard RF gaskets provide.
Q: Are carbon steel flanges suitable for low-temperature service?
A: Standard A105 carbon steel works to -29°C (-20°F). For colder environments, specify A350 LF2, which offers tested impact toughness at low temperatures.
Contact Us
Ready to discuss your custom steel flange requirements? Contact our technical team at admin@jsfittings.com for expert guidance and competitive quotations.
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