Super Duplex S32760 Bolts Supplier

Excellent Corrosion ResistanceHigh Strength
Superior Resistance to Stress Corrosion Cracking (SCC)
Good Mechanical and Fatigue Properties

Super Duplex S32760 Bolts High Strength Corrosion Resistant Fasteners

SSM provides Super Duplex S32760 bolts engineered for extreme environments. These high-strength stainless steel fasteners offer outstanding resistance to corrosion, pitting, and stress corrosion cracking, making them ideal for offshore, oil & gas, and chemical applications.

SSM Super Duplex S32760 Bolts are manufactured in accordance with ASTM, ASME, DIN, and ISO standards, with full EN 10204 3.1 certification available, suitable for offshore, oil & gas, and high-corrosion applications.

Technical Specifications

Parameter	Description
Product Name	Super Duplex S32760 Bolts
Material	Super Duplex Stainless Steel UNS S32760
Product Type	Bolts / Stud Bolts
Strength	High tensile & yield strength
Corrosion Resistance	Excellent (pitting, crevice, SCC)
Standard	ASTM / ASME / DIN / ISO (optional)
Size Range	Customized
Surface Finish	Plain / Coated (optional)
Application	Offshore, oil & gas, chemical
Certification	EN 10204 3.1 available
Warranty	As per contract
After-sales Service	Technical support & documentation

Material Properties – UNS S32760

Super Duplex S32760 stainless steel contains high levels of chromium, molybdenum, nickel, and nitrogen, providing:

PREN value typically > 40
Excellent resistance to seawater and chemical media
Strong performance under cyclic loads and vibration

Chemical Composition (wt.%)

Element	C (Carbon)	Mn (Manganese)	Si (Silicon)	P (Phosphorus)	S (Sulfur)	Cr (Chromium)	Ni (Nickel)	Mo (Molybdenum)	Cu (Copper)	N (Nitrogen)	Fe (Iron)
Content Range	≤ 0.03	≤ 1.00	≤ 1.00	≤ 0.030	≤ 0.010	24.0 – 26.0	6.0 – 8.0	3.0 – 4.0	0.5 – 1.0	0.20 – 0.30	Balance

Mechanical Properties (Typical Values)

Values depend on product form (bar, bolt, or forged) and heat treatment; below are engineering reference values:

Property	Tensile Strength	Yield Strength (0.2%)	Elongation	Hardness	Impact Toughness (-46°C)	Density
Typical Value	≥ 750 MPa	≥ 550 MPa	≥ 15%	≤ 290 HB (~ ≤ 31 HRC)	≥ 40 J (typical, per spec)	~7.8 g/cm³

UNS S32760 Bolts Applications

SSM Super Duplex S32760 bolts are widely used in:

Offshore and marine engineering
Oil & gas exploration and processing
Chemical and petrochemical plants
Seawater desalination systems
Pumps, valves, and pressure vessels

One-Stop Flange Provider for All Your Needs

SSM has significant product advantages in manufacturing Super Duplex S32760 Bolts. Whether it’s quality or price, we will meet your needs.

Super Duplex S32760 Bolts standards and specifications

Super Duplex S32760 bolts (UNS S32760) are widely recognized in engineering and trade. The main standards and specifications commonly referenced by international buyers are organized below into “Material / Fasteners / Manufacturing / Testing / Surface Treatment” categories.

Category	Standard / System	Description / Notes
Material Standards	UNS S32760	Super duplex stainless steel grade (core identification standard)
	ASTM A182 / A182M	Stainless steel and alloy steel forgings (for bolts and studs raw material)
	ASTM A479 / A479M	Stainless steel bars (commonly used for bolt raw material)
Fastener Standards	ASTM A193 / A193M	Alloy steel and stainless steel bolts and studs for high-temp/high-pressure; used in oil & gas & pressure equipment; S32760 supplied per technical agreement
	ASTM A194 / A194M	Carbon and alloy steel nuts for high-pressure applications (used with A193 bolts)
	ASME B18.2.1	Hex bolts dimensional standard
	ASME B18.31.2	Stud bolts and double-end studs
European / International Standards	DIN 931 / DIN 933	Hex bolts (partially / fully threaded)
	DIN 976	Stud bolts
	ISO 4014 / ISO 4017	Hex bolts (international standard)
	ISO 898	Mechanical properties of fasteners (for performance benchmarking)
	EN 10204 3.1	Material test certificate (mandatory for European projects)
Chemical Composition & Corrosion	ASTM A276 / A276M	Stainless steel composition and general performance requirements
	PREN ≥ 40	High pitting resistance; often specified in technical requirements
Inspection & Testing	ASTM A370	Tensile, hardness, mechanical testing
	ISO 6892-1	Tensile testing of metallic materials (International/European standard)
	ASTM E112	Grain size assessment (for high-end projects)
	PMI Testing (XRF / OES)	Positive material identification as required
Surface Treatment & Protection	Pickling & Passivation	ASTM A380 / A967; improves surface corrosion resistance
	PTFE / Xylan / Teflon coating	Optional; prevents thread galling, used in offshore projects
Industry Standards / References	NACE MR0175 / ISO 15156	Material selection for sour oil & gas environment
	API Project Specifications	Common in oil & gas & offshore engineering projects