ISO 5832-9 / UNS S31675 (1.4472) – Wrought Nitrogen Strengthened Stainless Steel for Surgical Implants

Buy ISO 5832-9 / UNS S31675 at factory price. Nitrogen-strengthened austenitic stainless steel for surgical implants. Non-magnetic, high fatigue properties, remelt grade (airmelted+ESR). Meets ASTM F1586. Fast delivery.

Delivery :

FOB

minimum order :

10 kilograms

Supply Ability :

5000kilograms / Month

Stock Time :

7-10Day

Country of Origin :

CHINA

Quantity :

Contact Now

ISO 5832-9 and ASTM F1586 specify the requirements for wrought nitrogen-strengthened 21 chromium-10 nickel-3 manganese-2.5 molybdenum stainless steel (UNS S31675 / 1.4472) for surgical implants.

This high-nitrogen austenitic stainless steel offers superior corrosion resistance, significantly higher strength than conventional Cr-Ni-Mo steels, and excellent fatigue properties—making it particularly suitable for orthopedic internal fixation devices, prosthetics, and precision micro-mechanical components

Standards & Designations

Standard	Designation
UNS	S31675
ISO	5832-9
European (EN 10088-3)	X4CrNiMnMo 21-9-4
German (DIN)	X4CrNiMnMo 21-9-4 / 1.4472
American	ASTM F1586
French	NF S 94-090

Product Forms & Availability – UNS S31675 (1.4472 / ASTM F1586)

Product Form	Availability
Bar	Available
Wire	Available
Forgings	Available
Custom shapes	Available

For all stock availability, contact Sales.

Melting Route

Airmelted + ESR

Applications

Orthopedic Implants: Hip, knee, and shoulder replacements; intramedullary nails; bone plates and screws
Internal Fixation Devices: Osteosynthesis plates, screws, and spinal fixation hardware
Surgical Instruments: High-strength cutting tools and precision instruments

Chemical Composition

Chemical Composition (Weight %)	ISO 5832-9 / ASTM F1586
Chromium (Cr)	19.5 – 22.0
Nickel (Ni)	9.0 – 11.0
Molybdenum (Mo)	2.0 – 3.0
Manganese (Mn)	2.0 – 4.25
Nitrogen (N)	0.25 – 0.50
Niobium (Nb)	0.25 – 0.80
Carbon (C)	0.08 max.
Silicon (Si)	0.75 max.
Phosphorus (P)	0.025 max.
Sulfur (S)	0.010 max.
Copper (Cu)	0.25 max.
Iron (Fe)	Balance

Physical Properties	Metric	Imperial
Density	~7.9 g/cm³	~0.285 lb/in³
Modulus of Elasticity	~190 GPa	~27.6 × 10⁶ psi
Magnetic Properties	Non-magnetic	—

Mechanical Properties	Annealed	Precipitation Hardened
Tensile Strength (min.)	740 MPa	1060 MPa
Elongation (min.)	35%	12%

Factory Price – ISO 5832-9 / UNS S31675 Bar (1.4472 / ASTM F1586)

Indicative factory pricing (FOB China):

Diameter Range	Product Form	Condition	Price (USD/kg)
Φ3mm – 25mm	Round Bar	Remelted + ESR	$20 – $40
Φ25mm – 50mm	Round Bar	Remelted + ESR	$18 – $35
Φ50mm – 100mm	Round Bar	Remelted + ESR	$16 – $32
Φ100mm – 250mm	Round Bar	Remelted + ESR	$15 – $30
Wire	Various	Remelted + ESR	$25 – $50

Volume discounts available for orders above 500 kg. Custom sizes and specifications available – contact us for a firm quote.

Delivery Lead Times (after pre-payment confirmation)

Stock Status	Delivery Time
Products in stock	Within 3 days
Raw material in stock	Within 10 days
Re-melting required	15 – 25 days

Contact ZYTC Alloy Today

Request a quote for ISO 5832-9 / UNS S31675 (1.4472 / ASTM F1586) – Wrought Nitrogen Strengthened Stainless Steel – Surgical Implant Grade – Non-Magnetic – High Fatigue Properties . Please provide:

Diameter / size
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Length or weight required
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