Medical Grade Nitinol Superelastic Wire for Urological Guidewires

• Customization: Available
• Application: Aviation, Electronics, Industrial, Medical, Chemical
• Standard: JIS, GB, DIN, BS, ASTM, AISI
• Model NO.: BKNT-M
• Alloy: Alloy
• Type: Nickel Wire
• Powder: Not Powder
• Diameter: 0.1-2.5mm
• Standards: ASTM F2063,GB 24627
• Grade: Niti
• Wire Shape: Round
• Surface Finish: Black Oxidized, Lightly Oxidized, Bright, Ultra Br
• Delivery Condition: Straightened Superelastic , Cold-Worked
• Supply Form: Spool Wound, Straight
• Transport Package: Wooden Case
• Trademark: Bokang
• Origin: Changzhou, China
• HS Code: 9021290090
• Production Capacity: 200tons/Year

Product Description

Product Description

Nitinol Wire Description:
Nitinol round wire, also known as NiTi wire, is a nickel-titanium alloy renowned for its shape memory effect, superelasticity, and excellent fatigue and corrosion resistance. When deformed, it can return to its original shape upon exposure to a specific transformation temperature. These unique characteristics make Nitinol the preferred material for minimally invasive medical devices, including braided products, orthodontic wires, guidewires, and various implantable surgical tools.

 

We are a custom Nitinol alloy solution provider, offering high-performance NiTi round wires that fully comply with ASTM F2063 standards. Our products are engineered for both medical and non-medical markets, covering a wide range of standard and advanced applications, where precision, reliability, and mechanical performance are critical.

 

Whether you need wires with customized transformation temperatures, tight diameter tolerances, or specific surface finishes, we can deliver solutions tailored to your application needs.

 

Nitinol Wire Features:
Fully independent processing,Precision control at every stage

Precision smelting with adjustable composition percentages

Customizable phase transition temperature range for different applications

Stable shape memory and superelasticity

Guidewires offer excellent straightness and elasticity, resistant to bending

Outstanding torsional properties enable 1:1 torque transmission for precise guidance

Basket wires provide superior flexibility and maneuverability

Specification

Material Grade	NITI
Wire Shape	Round Wire
Diameter Range(mm)	0.1-2.5
Standards	ASTM F2063,GB 24627
Diameter Tolerance	±0.001mm
Surface Finish	Black Oxidized, Lightly Oxidized, Bright, Ultra Bright, Polished, Clean
Delivery Condition	Straightened superelastic , Cold-worked
Supply Form	Spool wound, Straight

Delivered Transformation Temperature

As a key indicator of superelastic performance in NiTi alloys, the Austenite Finish Temperature (Af) is commonly used to evaluate the effectiveness of superelasticity. According to ASTM F2063-18, the nickel content in NiTi alloys should be within 54.5–57.0 mass%. However, since the Af temperature is highly sensitive to slight variations in nickel content, it is crucial to subdivide the alloy composition. Therefore, refined alloy codes are adopted to clearly identify and control the alloy grades.

NiTi Alloy Code	A	B	S	C	D	E	J	K	L
Austenite Finish Temperature (Af) After Heat Treatment, °C	70+/-10	30+/-10	25+/-5	17+/-7	10+/-10	5+/-10	-30+/-10	30+/-10	-20+1-10

Chemical Composition: ASTM F2063
Element	Mass Percentage (wt%)
Ni	54.5-57.0
C	≤0.040
Co	≤0.050
Cu	≤0.010
Cr	≤0.010
H	≤0.005
Fe	≤0.050
Nb	≤0.025
N	≤0.005
O	≤0.040
Ti	balance

Mechanical Properties: ASTM F2063
NiTi Alloy Code	Straightened Superelastic Condition (SE)
	Tensile Strengthσ,Mpa	Elongationδ,%	Upper Plateau Stress σ, MPa	Residual Strain, %	Active Af Temperature, ℃
D	≥1300	≥10	≥480	<0.5	10±7
C	≥1150	≥10	≥440	<0.5	17±7
S	≥1000	≥10	≥400	<0.5	25±5

NiTi Round Wire Diameter Tolerance:
Diameter(mm)	Tolerance(mm)
4.000-2.000mm	±0.020mm
2.000-1.000mm	±0.010mm
1.000-0.350mm	±0.010mm
0.350-0.260mm	±0.007mm
0.260-0.150mm	±0.005mm
0.150-0.080mm	±0.004mm
0.080-0.050mm	±0.003mm
0.050-0.013mm	±0.002mm

Application

Nitinol Round Wire Applications:

Medical Applications:
Medical-grade guidewires
Stone retrieval baskets
Dental endodontic files
Intrauterine devices (IUDs)
Surgical sutures
Braiding wire for vascular stents
Orthopedic implants
Non-Medical Applications:
Temperature-sensitive actuators
Micro-components for robotics and aerospace
Eyeglass frames
Springs and SIM card trays for mobile devices
Elastic components in electronic equipment
High-precision parts for industrial automation

Certifications

ISO 13485

ISO 9001

CNAS

Production and Quality Control

Nitinol Wire Production Process

Raw material → Mixed ingredients → Vacuum melting → Sampling analysis after furnace → Hot forging → Hot rolling to 8MM → Pickling → Wellbore annealing (heat treatment) → Wire drawing → Wellbore annealing (heat treatment) → Sampling and testing → Water tank drawing → Continuous annealing → Finished product inspection and testing → Packing → Final shipment

Product Category

Company Profile

FAQ

Q: Are you a manufacturer or a trading company?
A: We are a direct manufacturer with 18+ years of experience in titanium production.

Q: Do you provide free samples?
A: Yes, we offer free samples, but customers need to cover the shipping cost.
 
Q: What is the minimum order quantity (MOQ)?
A: 1 kg. We maintain a 20-ton monthly production capacity for titanium rods and wires, ensuring sufficient stock for standard medical and aerospace materials.
 
Q: What titanium products do you offer?
A: Our product range includes pure titanium, titanium alloys, titanium rods, titanium bars, wires, discs, sheets, plates, nitinol alloys, and more.
 
Q: What are your payment terms?
A: Payment terms vary based on the transaction type (FOB, CIF, CNF, etc.).
For mass production, we require 30% deposit before production and 70% balance against shipping documents. We accept T/T and L/C payments.
 
Q: What industries do your products serve?
A: Our titanium and nitinol alloys are widely used in medical, aerospace, and industrial applications.
 
Q: How can I get a price quote?
A: To provide an accurate quote, please provide the following details:
1 Product Name
2 Standard
3 Material Grade (Chemical Composition)
4 Dimensions
5 Quantity
 
Q: Do you offer custom manufacturing?
A: Yes! We provide customized titanium products based on customer drawings or samples.
 
Q: How do you ensure product quality?
A: We implement strict quality control at every stage of production, using advanced testing equipment to meet customer and international standards.
 
Q: What are your shipping options?
A: We ship via sea or air, depending on customer requirements.
 
Contact us today for more details or a custom quote!