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Duplex & Super Duplex Stainless SteelsUNS S32750View material details

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Compare Materials: Super Duplex 2507
MaterialSuper Duplex 2507S32750

Summary

Material familyDuplex & Super Duplex Stainless Steels
Grade / UNSS32750
SummaryA super duplex stainless steel for applications involving chlorides and high mechanical loads.

Performance overview

Material focusSuper duplex strength
Physical reference
Density
7.79 g/cm³
Melting range
1396–1450 °C
Supplied technical reference · Scanned PDF page 17 · printed page 29
Chemical composition
Chemical composition

Composition limits · wt.%

Cr
24–26
Ni
6–8
Mo
3–5
N
0.24–0.32
Cu
≤0.50
C
≤0.03
Mn
≤1.20
P
≤0.035
S
≤0.020
Si
≤0.80
Supplied technical reference · Scanned PDF page 1 · printed page 13

Mechanical properties

Reference conditions vary or are incomplete. Read the basis, condition and source for each column; these values do not establish a performance ranking or finished-fastener acceptance values.

Tensile strength≥800 MPa
Catalogue reference minimums
Not documented in this reference
Not documented in this reference
Supplied technical reference · Scanned PDF page 1 · printed page 13
0.2% yield strength≥550 MPa
Catalogue reference minimums
Not documented in this reference
Not documented in this reference
Supplied technical reference · Scanned PDF page 1 · printed page 13
Elongation≥15 %
Catalogue reference minimums
Not documented in this reference
Not documented in this reference
Supplied technical reference · Scanned PDF page 1 · printed page 13
Reference conditions
Data basis
Catalogue reference minimums
Condition
Not documented in this reference
Sample form
Not documented in this reference
Sample size
≤50.8 mm
Test temperature
Not documented in this reference
Test method
Not documented in this reference
Test direction
Not documented in this reference
Elongation gauge length
A5, as labelled in supplied table

Temperature & corrosion

Evaluate the medium, concentration, impurities, temperature and loading together. A melting point or oxidation reference is not a safe working-temperature limit.

Service conditions to reviewConfirm section size, solution treatment and the actual corrosion environment.
Temperature-dependent dataNot documented in this reference

Heat treatment

Delivery condition and heat-treatment requirements are agreed for the requested product form and order.

ConditionNot documented in this reference
Reference treatmentNot documented in this reference

Reference applications

Application examples provide context for review; suitability depends on the actual service conditions.

Reference applicationsSeawater equipment · process systems

Standards & documentation

Confirm the edition, product form and condition. Material specifications do not establish finished-fastener compliance.

Material specifications by form
  • ASTM A276Bar & shapesSpecify grade, condition and order requirements.Supplied technical reference · Scanned PDF page 1 · printed page 13
  • ASTM A240 / ASME SA240Plate, sheet & stripSupplied technical reference · Scanned PDF page 17 · printed page 29
  • GB/T 20878Grade and composition referenceSpecify the applicable revision.Supplied technical reference · Scanned PDF page 17 · printed page 29
Sources
Sources

Documents for your enquiry

Every BYBOLT delivery includes an MTC / EN 10204 3.1 certificate, heat-number traceability and mechanical testing. Threaded products include sampled GO / NO-GO gauging. Test methods and acceptance criteria follow the agreed specification; PMI, third-party inspection and additional records are agreed separately at quotation.

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