Description
Product Specifications and Technical Data
An engineered stainless steel known for its high yield strength & decent corrosion resistance
- ✓High Strength – About 2x stronger yield than 316 stainless steel
- ✓Super Duplex – Decent general corrosion & cracking resistance
- ✓Duplex Grades and chemistry: Duplex 2205, Super Duplex 2507, Zeron 100
- ✓In-depth insight on Duplex 2205 and Super Duplex 2507
- ✓Slip on flange features and benefits
- ✓Datasheet for Super Duplex 2507
- ✓Datasheet for Duplex 2205
Duplex 2205 and Super Duplex 2507 stainless steel slip on flanges are characterized by their high yield strength, which is twice that of the annealed yield strength of typical austenitic stainless steels, like 304 and 316 stainless steel slip on flanges. Because of this, Duplex 2205 and Super Duplex 2507 steel are some of the most common grades of duplex used for slip on flanges with Super Duplex 2507 slip on flanges being the more corrosion resistant grade of the two.
Super Duplex 2507 slip on flanges improved corrosion resistance lends itself well too applications prone to stress-corrosion cracking, crevice corrosion, pitting, erosion and general corrosion. Because of the properties of Duplex and Super Duplex stainless steel slip on flanges are often used in chemical processing, petrochemicals, power industry and seawater equipment.
Usage of both Duplex and Super Duplex stainless steel should be limited to temperatures below 570° F as extended elevated temperature exposure can embrittle this material.
The most common grades of Duplex flanges are Duplex 2205 and Super Duplex 2507. Gain more insight on these two grades by accessing our Duplex 2205 and Super Duplex 2507 overviews or by contacting our engineering experts.
Flange Types Available: Blind Flanges, Lap Joint Flanges, Slip On Flanges, Socket Weld Flanges, Threaded Flanges, Weld Neck Flanges
Flange Dimensions Reference
Strength-Driven Duplex Super Duplex Steel Slip on Flanges by SASA FLANGE
SASA FLANGE supplies duplex super duplex steel slip on flanges engineered from stainless steels known for high yield strength and dependable corrosion resistance.
Duplex 2205 and Super Duplex 2507 offer about twice the yield strength of typical 304 and 316 stainless steel slip on flanges, while Super Duplex 2507 provides enhanced resistance to stress-corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion.
These advantages make them suitable for demanding offshore platforms, oil and gas duties, and harsh marine service.
Grades and Standards Behind Duplex Super Duplex Steel Slip on Flanges
SASA FLANGE offers duplex super duplex steel slip on flanges in Duplex 2205, Super Duplex 2507, and Zeron 100/F55 grades.
Duplex 2205 includes UNS S31803, UNS S32205, W.
NR./EN 1.4462, and Werkstoff 1.4462, with a mixed microstructure of roughly equal ferrite and austenite.
Super Duplex 2507 is UNS S32750, Werkstoff 1.4410, while Zeron 100/F55 is UNS S32760, W.
Nr./EN 1.4501.
Use should be limited below 570° F because extended elevated temperature exposure can embrittle the material.
Where Duplex Super Duplex Steel Slip on Flanges Perform Under Pressure
Duplex super duplex steel slip on flanges from SASA FLANGE are widely used in chemical processing, petrochemicals, the power industry, and seawater equipment because they combine strength with corrosion resistance.
For offshore oil platforms, they suit piping exposed to aggressive marine conditions.
In subsea oil and gas pipelines, Super Duplex 2507 helps resist chloride attack and stress-corrosion cracking.
In desalination equipment and warm chlorinated seawater service, Super Duplex 2507 and Zeron 100/F55 are especially well suited.
Act Fast on Duplex Super Duplex Steel Slip on Flanges from SASA FLANGE
SASA FLANGE delivers duplex super duplex steel slip on flanges with practical installation benefits, including easier pipe alignment because the flange can slide through the hub and spin freely.
They are typically lower in price than weld-neck flanges, though they require two fillet welds.
We support custom manufacturing with 10-20 days lead time, backed by ISO 9001:2015, ferrite content testing, impact testing, and PMI verification.
Contact sales@sasaflange.com or WhatsApp +86 13764965049 today.
Why Choose SASA FLANGE?
Multiple Pressure Classes
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Precise Dimensional TolerancesSlip on design lets the pipe slide completely through the hub and remain free to spin for easier bolt alignment. |
Corrosion ResistantSuper Duplex 2507 offers improved resistance to stress-corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion. |
ISO 9001 CertifiedSupported by standards and references including NACE MR0175/ISO 15156 and ISO 15156-3 for demanding service environments. |
Competitive PricingTypically lower in price than weld-neck flange, although welding costs can be more depending on installation requirements. |
Global Shipping
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duplex super duplex steel slip on flanges Application Scenario
The duplex super duplex steel slip on flanges is widely deployed across critical industrial sectors where reliable pipe sealing and pressure containment are essential. Typical application scenarios include:
From high-pressure refinery piping to municipal water distribution networks, the duplex super duplex steel slip on flanges ensures leak-free connections and long-term service reliability in demanding environments.
duplex super duplex steel slip on flanges installed in industrial piping system
Frequently Asked Questions
Q: What is a duplex super duplex steel slip on flanges used for?
A: These slip on flanges connect piping, valves, pumps, and equipment in corrosive, chloride-bearing, and high-pressure systems. Duplex 2205 and Super Duplex 2507/F55 are widely used in offshore oil and gas, seawater handling, desalination, chemical processing, and sour service lines requiring NACE MR0175/ISO 15156 compliance. Their duplex microstructure provides high strength, good weldability, and strong resistance to pitting, crevice corrosion, and stress corrosion cracking below 570°F.
Q: What materials are available for duplex super duplex steel slip on flanges?
A: Available grades include Duplex 2205 in UNS S32205 and related UNS S31803 / EN 1.4462, plus Super Duplex 2507 in UNS S32750 / EN 1.4410 and Zeron 100 / F55 in UNS S32760 / EN 1.4501. These two-phase stainless steels contain roughly balanced ferrite and austenite, delivering higher strength and improved chloride corrosion resistance than standard austenitic stainless steels. Material test certificates are supplied to EN 10204 3.1.
Q: What pressure ratings does a duplex super duplex steel slip on flanges support?
A: Pressure rating depends on flange dimension standard, size, wall thickness, and grade, not only the alloy. These slip on flanges are commonly produced to ASME pressure classes such as 150, 300, 600, 900, 1500, and 2500, subject to project specification. Duplex and Super Duplex offer higher mechanical strength than austenitic stainless steels, but service temperature should remain below 570°F to avoid embrittlement during prolonged exposure.
Q: What standards does a duplex super duplex steel slip on flanges comply with?
A: These flanges are manufactured from materials covered by ASME SA/ASTM A182, A240, A276, A479, A789, A790, A815, and related EN 10088 and EN 10216-5 requirements. Available grades include UNS S32205, S32750, and S32760, aligned with NACE MR0175 / ISO 15156 for sour service and NORSOK MDS D45 Grade F51 or MDS 055 where specified. SASA FLANGE operates under ISO 9001:2015 with EN 10204 3.1 MTC.
Q: What is the lead time for custom duplex super duplex steel slip on flanges orders?
A: Custom orders typically require 15-30 days, depending on grade, size, quantity, machining scope, and testing requirements. Stock items can usually ship within 3-7 days. For Duplex 2205, Super Duplex 2507, or F55/Zeron 100 flanges needing special dimensions, NACE compliance, or EN 10204 3.1 documentation, confirm the exact delivery schedule with SASA FLANGE at sales@sasaflange.com or WhatsApp +86 13764965049.
Packaging and Shipping
📦 Packing is quite important especially in the case of international shipments in which consignments pass through various channels to reach the ultimate destination, so we put special concern regarding packaging to ensure every piece arrives in perfect condition.
SASA FLANGE packs goods in numerous ways based on the product type and customer requirements. Our standard packaging options include:
- Plywood cases / crates – for heavy flanges and large-diameter products
- Pallets with shrink wrap – for bulk orders and standard sizes
- Individual poly bags + carton boxes – for small flanges and fittings
- Anti-rust oil coating + waterproof paper – for long-distance ocean freight
- Custom marking and labeling – per customer specifications or project requirements
All packaging meets international export standards. Special packing instructions are welcome upon request.
