0.20mm Fine Stainless Steel Wire – Precision Cut for Spring Coils

• Customization: Available
• Certification: ISO, CCC, CE
• Surface: Smooth
• Model NO.: Stainless Steel Wire
• Technique: Drawn Wire
• Application: Packaging, Netting, Manufacturing, Construction
• Alloy or Not: Alloy
• Standard: GB, ASTM, AISI
• Temperature Resistance: up to 750°c
• Conductivity: Approx. 2–4% Iacs
• Tensile Strength: ≥1800MPa
• Surface Finish: Bright and Smooth
• Transport Package: Plastic Reel Packaging and Carton Vacuum Packaging
• Specification: Customized
• Trademark: MOSSTEE
• Origin: Jiangsu, China
• HS Code: 73121090
• Production Capacity: 500tons/Year

Product Description

Product Description

0.20mm Fine Stainless Steel Wire - Precision Cut for Spring Coils is a high-strength, corrosion-resistant wire designed for micro springs, precision mechanical parts, and fine coil applications. Manufactured with tight diameter tolerance and consistent surface quality, it ensures uniform coiling and long-lasting elastic performance.

This fine-gauge wire is ideal for use in watch components, medical devices, instrumentation springs, and other applications requiring both strength and miniaturization. Its stainless steel composition provides excellent fatigue resistance and dimensional stability during repetitive stress cycles.

 

Key Features

• 0.20mm ultra-fine wire with laser-calibrated dimensional control

• Excellent spring-back behavior and high tensile strength

• Smooth, clean surface finish for friction-free coiling

• Suitable for high-precision spring forming equipment

• Available in coils, spools, or straight-cut lengths for easy integration

 

Applications

• Micro compression and extension springs

• Medical device spring mechanisms

• Electronics and instrumentation components

• Fine tension elements in watches and mechanical sensors

• Precision spring assemblies in aerospace or automotive instruments

 

Quality & Standards

• Material: 304 / 316 stainless steel (customizable)

• Diameter tolerance: ±0.005mm

• Hardness: Spring tempered / bright hard

• RoHS / ISO9001 / REACH certified manufacturing

• Custom packaging available: spools, cut lengths, vacuum-sealed

Detailed Photos

 

 

Product Parameters

Stainless steel Wire Specifications
Parameter	Single Wire (Solid)	Stranded Wire
Conductor Type	Solid	Customization available
Diameter	0.01mm-0.50mm
Conductor Material	Stainless steel wire (304, 316, 321, 430, 410)
Tensile properties	500-2000MPa
Density	7.8g/cm³
Melting Point	1400-1500°C
Certifications	RoHS, REACH, UL (optional)
Packaging	Customized package available
Key Applications	Electrical connectors, circuit board components, and shielding mesh, EDM Wire, Medical & Surgical Instruments, Aircraft components, suspension systems, and vibration-resistant fasteners, Spring wires

 

TABLE 1. Approximate Short-Time Fusing Currents of Dead Soft Annealed (DSA) CCS Stranded Conductors
 

CONDUCTOR SIZE AWG	DURATION OF CURRENT IN CYCLES OR SECONDS
	3 CYCLES (0.05 SEC)	6 CYCLES (0.10 SEC)	9 CYCLES (0.15 SEC)	30 CYCLES (0.50 SEC)	60 CYCLES (1.0 SEC)	120 CYCLES (2.0 SEC)
	CURRENT IN KA
40% CONDUCTIVITY
19-Wire Stranded
19 No. 5	269.02	190.22	155.32	85.07	60.15	42.54
19 No. 6	213.33	150.85	123.17	67.46	47.70	33.73
19 No. 7	169.17	119.62	97.67	53.50	37.83	26.75
19 No. 8	134.17	94.87	77.46	42.43	30.00	21.21
19 No. 9	106.40	75.23	61.43	33.65	23.79	16.82
7-Wire Stranded
7 No. 4	124.97	88.37	72.15	39.52	27.94	19.76
7 No. 5	99.11	70.08	57.22	31.34	22.16	15.67
7 No. 6	78.60	55.58	45.38	24.85	17.57	12.43
7 No. 7	62.33	44.07	35.98	19.71	13.94	9.85
7 No. 8	49.43	34.95	28.54	15.63	11.05	7.82
7 No. 9	39.20	27.72	22.63	12.40	8.77	6.20
7 No. 10	31.08	21.98	17.95	9.83	6.95	4.91
2 AWG	22.14	15.66	12.79	7.00	4.95	3.50
4 AWG	13.84	9.79	7.99	4.38	3.10	2.19
Single Wire Stranded
2 AWG	28.39	20.07	16.39	8.98	6.35	4.49
4 AWG	17.85	12.62	10.31	5.65	3.99	2.82
6 AWG	11.23	7.94	6.48	3.55	2.51	1.78

 

CONDUCTOR SIZE AWG	DURATION OF CURRENT IN CYCLES OR SECONDS
	3 CYCLES (0.05 SEC)	6 CYCLES (0.10 SEC)	9 CYCLES (0.15 SEC)	30 CYCLES (0.50 SEC)	60 CYCLES (1.0 SEC)	120 CYCLES (2.0 SEC)
	CURRENT IN KA
30% CONDUCTIVITY
19-Wire Stranded
19 No. 5	232.99	164.75	134.52	73.68	52.10	36.84
19 No. 6	184.76	130.65	106.67	58,43	41.31	29.21
19 No. 7	146.52	103.60	84.59	46.33	32.76	23.17
19 No. 8	116.20	82.17	67.09	36.75	25.98	18.37
19 No. 9	92.15	65.16	53.20	29.14	20.60	14.57
7-Wire Stranded
7 No. 4	108.23	76.53	62.49	34.23	24.20	17.11
7 No. 5	85.84	60.70	49.56	27.14	19.19	13.57
7 No. 6	68.07	48.13	39.30	21.53	15.22	10.76
7 No. 7	53.98	38.17	31.17	17.07	12.07	8.54
7 No. 8	42.81	30.27	24.72	13.54	9.57	6.77
7 No. 9	33.95	24.01	19.60	10.74	7.59	5.37
7 No. 10	26.92	19.04	15.54	8.51	6.02	4.26
2 AWG	19.18	13.56	11.07	6.06	4.29	3.03
4 AWG	11.99	8.48	6.92	3.79	2.68	1.90
Single Wire Stranded
2 AWG	24.59	17.38	14.19	7.77	5.50	3.89
4 AWG	15.46	10.93	8.93	4.89	3.46	2.44
6 AWG	9.72	6.88	5.61	3.08	2.17	1.54

TABLE 2. Physical and Electrical Characteristics of Dead Soft Annealed (DSA) CCS Stranded Conductors
 

CONDUCTOR SIZE AWG	DIAMETER		MINI BREAKING LOADS				WEIGHT		CROSS SECTION AREA		APPROXIMATE SHORT- TIME FUSING CURRENT AT 30 CYCLES (KA)
			40% COND		30% COND		LBS/KFT	KG/KM
	INCH	MM	LBF	kN	LBF	kN			CMIL	MM2	40% COND	30% COND
19-Wire Stranded
19 No. 5	0.91	23.1	17246	76.7	19402	86.3	1769	2632	628665	318.55	85.07	73.68
19 No. 6	0.81	20.57	13679	60.8	15389	68.5	1403	2088	498636	252.66	67.46	58.43
19 No. 7	0.722	18.33	10853	48.3	12210	54.3	1113	1656	395627	200.47	53.50	46.33
19 No. 8	0.643	16.32	8606	38.3	9682	43.1	883	1314	313733	158.97	42.43	36.75
19 No. 9	0.572	14.53	6821	30.3	7674	34.1	700	1041	248660	126.00	33.65	29.14
7-Wire Stranded
7 No. 4	0.613	15.57	8015	35.7	9017	40.1	819	1218	292169	148.04	39.52	34.23
7 No. 5	0.546	13.86	6354	28.3	7148	31.8	649	966	231613	117.36	31.34	27.14
7 No. 6	0.486	12.34	5040	22.4	5670	25.2	515	766	183708	93.09	24.85	21.53
7 No. 7	0.433	11.00	3998	17.8	4498	20.0	408	608	145757	73.86	19.71	17.07
7 No. 8	0.386	9.79	3171	14.1	3567	15.9	324	482	115586	58.57	15.63	13.54
7 No. 9	0.343	8.72	2513	11.2	2827	12.6	257	382	91612	46.42	12.40	10.74
7 No. 10	0.306	7.76	1994	8.9	2243	10.0	204	303	72685	36.83	9.83	8.51
2 AWG	0.258	6.55	1435	6.4	1614	7.2	145	216	51772	26.23	7.00	6.06
4 AWG	0.204	5.18	897	4.0	1009	4.5	91	135	32368	16.40	4.38	3.79
Single Wire Stranded
2 AWG	0.258	6.54	2023	9.0	2275	10.1	184	274	66358	33.62	8.98	7.77
4 AWG	0.204	5.19	1272	5.7	1431	6.4	116	172	41738	21.15	5.65	4.89
6 AWG	0.162	4.11	800	3.6	900	4.0	73	108	26244	13.30	3.55	3.08

Certifications

Packaging & Shipping

Company Profile

Mosstee specializes in high-performance conductor materials, including silver-plated copper wire, nickel-plated copper wire, copper-clad aluminum, copper-clad steel, and aluminum alloy cables, widely used in power, telecommunications, automotive, and new energy industries.
 

Our Advantages

1. Three Decades of Specialized Expertise
As a pure-play wire & cable manufacturer since 1990, we deliver precisely engineered solutions for industrial, energy, and infrastructure applications.

2. Certified Quality Assurance
All products meet UL, CE, and RoHS standards, with ISO 9001-certified manufacturing ensuring 99.97% defect-free delivery across 50+ countries.

3. Eco-Conscious Production
REACH-compliant materials reduce carbon footprint by 30% vs industry average, with 85% recyclable product designs.
 

After Sales Service

Service Excellence

1. 24/7 Technical Support
Dedicated engineers on-call for urgent troubleshooting, with <3hr response time for critical infrastructure projects.

2. Customization from Blueprint to Delivery
• Prototype development in 10-14 days
• Minimum Order Quantity (MOQ) as low as 50 kgs
• OEM/ODM compliant with NEC, IEC & EN standards

3. Transparent Project Management
Assigned account managers provide weekly progress reports with:

• Test report
• Production line videos
• Customs clearance updates

4. Risk-Free Trial
Test samples in your application for 90 days - we cover return shipping if unsatisfied.