Super Duplex Rings

Super Duplex ring manufacturer in India — UNS S32750, S32760 & WNR 1.4410 forged and rolled rings. SAF 2507, custom sizes, export worldwide.

Super Duplex Rings
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Super Duplex Rings

Suntech Forge India is a trusted Super Duplex Ring Manufacturer in India, offering high-performance forged and rolled rings in standard as well as customized sizes. Our rings are manufactured using advanced forging techniques to meet industrial requirements.

Super duplex grades deliver exceptional pitting and crevice corrosion resistance together with high strength—common references include UNS S32750, S32760, and WNR 1.4410.

verified_user Excellent Corrosion Resistance
workspace_premium High Strength & Durability
shield_with_heart Withstands Extreme Conditions
military_tech Long Service Life

Super Duplex Ring Specification

Super duplex stainless steel ring standards we work with:

  • UNS S32750
  • UNS S32760
  • WNR 1.4410

Ring Weight

60,000 lbs

Thickness

300 mm

Face Height

Up to 49 inches

OD

145 to 3000 mm

Finish

Forged black or proof machined

Forging

Hot rolled, open die, and closed die as applicable

Our Capability

Forging
Heat treatment
Machining & sawing

Product Overview

Super duplex stainless steel rings are designed for extreme environments where high strength and superior corrosion resistance are required. Rings are available in various sizes and specifications based on client requirements.

Value Added Services

Age hardening
Normalizing
Heat treatment
Annealing
Quenching & tempering
Hardening

Super Duplex Ring Sizes

  • Face height: Up to 49″
  • Thickness: 300 mm
  • OD: 145 to 3000 mm
  • Ring weight: 60,000 lbs

Our Strength

Forging as per drawing
Cheapest cost
Custom forging solutions
Transparent dealings
On-time delivery

Surface Finish

  • Forged black
  • Proof machined

Super Duplex 2507 Ring Size Chart

Ring size (US) Diameter (mm) Diameter (inches) Circumference (mm) Circumference (inches)
3 14.1 0.555 44.2 1.74
4 14.9 0.585 46.8 1.84
5 15.7 0.619 49.3 1.94
6 16.5 0.649 51.9 2.04
7 17.3 0.683 54.4 2.14
8 18.2 0.717 57.0 2.24
9 19.0 0.748 59.5 2.34
10 19.8 0.780 62.1 2.44
11 20.6 0.814 64.6 2.54
12 21.5 0.847 67.2 2.64
13 22.3 0.881 69.7 2.75
14 23.1 0.915 72.3 2.85
15 23.9 0.948 74.8 2.94

Applications

Chemical processing
Desalination plants
Heat exchangers
Water treatment
Marine

Forging Method

  • Drop / upset forging
  • Open / closed die
  • Impression die forging
  • Cold / hot forging

Testing & Quality Assurance

  • Heat treatment
  • NDT / PMI testing
  • Ultrasonic testing
  • Liquid penetrant testing
  • Quality assurance

Packaging

  • Plastic wrapping
  • Wooden case
  • Carton box

Types of Super Duplex Rings

  • UNS S32750 forged rings
  • UNS S32760 rolled rings
  • WNR 1.4410 seal rings
  • Alloy 2507 plate cut rings
  • SDSS 2507 socket rings
  • Seamless rolled rings
  • Hot forged rings
  • Custom SAF 2507 rings

Benefits of Super Duplex Rings

Good weldability
Temperature resistance
Recyclability
Cost-effectiveness

Standard Tolerance

Ring size Diameter tolerance Circumference tolerance
3–15 ±0.1 mm ±0.3 mm

Weight Chart

Ring size (mm) Weight (kg) Weight (lbs)
10 0.05 0.11
15 0.06 0.13
20 0.08 0.18
25 0.10 0.22
30 0.12 0.26
35 0.15 0.33
40 0.18 0.40
50 0.25 0.55
60 0.30 0.66

Super Duplex vs Duplex 2205

Property Super duplex 2507 Duplex 2205
Corrosion resistance Superior Good
Tensile strength ~620 MPa ~450–550 MPa
Yield strength ~450 MPa ~300 MPa
Nickel content Higher Lower
Cost Higher Moderate

Equivalent Standards

UNS: S32750 EN: 1.4410 DIN: X2CrNiMoN25-7-4 ISO: S32750 BS: 2507 JIS: SUS32950

Chemical Composition

Carbon
≤ 0.03%
Chromium
24.0 – 26.0%
Nickel
6.0 – 8.0%
Silicon
≤ 1.0%
Phosphorus
≤ 0.03%
Sulfur
≤ 0.01%

Mechanical Properties

Tensile strength
620 MPa
Yield strength
450 MPa
Elongation
25%
Hardness
90 HRB
Modulus
200 GPa

Physical Properties

Density
7.8 g/cm³
Melting point
1425 – 1475°C
Thermal conductivity
14 W/m·K
Electrical resistivity
0.8 µΩ·m

Export Countries

UAE Saudi Arabia Qatar Oman

Price Information

UNS S32750 rolled ring price

Looking for an updated super duplex ring price list? Send your inquiry and we will respond with availability and a competitive quote.

Ready Stock

  • Large diameter forged rings
  • Open die forged rings
  • Seamless rolled rings
  • Custom forged rings

Delivery Time

Country Days
Azerbaijan 30–45
Egypt 18
Turkey 21
Germany 20
Norway 45
Nepal 7
Vietnam 10

Typical lead times (at a glance)

Nepal 7 days
Vietnam 10 days
Egypt 18 days
Germany 20 days
Turkey 21 days
Azerbaijan 30–45 days
Norway 45 days