【产品类别】：弹簧钢线SWC系列

【简要介绍】：弹簧钢线SWC系列: 镀镍碳钢线/优质素材碳钢线,线材特点:增加铜底再镀镍有效减小电阻值,抗腐蚀性,焊锡性能更快,卷绕性能佳,稳定性更好、光泽美观、弹性均匀适用于各类精密弹簧！

产品用途:
主要用于高精密弹簧、电池弹簧、电子产品、天线弹簧、仪器仪表、电器、钟表、等各种精密零件。
Applications:
The main for the high precision springs,battery springs,electronic devices,antenna springs,instruments,electrical appliances,clocks / timepieces,all other precision parts.

表面颜色:
(镀镍碳钢NI-SWC)光面
(优质碳钢线)原色
Appearances:
(Nickel pre-plated carbon steel NI-SWC)Bright
(High quality carbon steel wire)Natural.

特殊开发镀镍工艺镀镍碳钢线特点:
有效减小电阻值，延长电池使用时间，抗腐蚀性，焊锡性能更好更快，卷绕性能佳，稳定性更好，弹性均匀适用于各类精密弹簧，弹性均匀适用于各类精密弹簧，光泽美观！
Innovative process of nickel plating for nickel pre-plated carbon steel wire characteristics:
Reduce electrical resistance, extend battery operation time,excellent corrosion resistance,more faster and excellent solderability,better coiling performance, better stability,uniform elasticity is advantage for various types of springs,bright finish provides better appearance!

※ 化学成份(单位:%) Chemical composition (unit:%)

线材名称	C	Si	Mn	P	S	钢 种
G3521 SWC	0.69-0.86	0.15-0.35	0.3-0.9	≦0.030	≦0.030	SWRH72~82A/B

※ 标准尺寸和性能参数 Standard dimension and performance parameters

线径 Diameter	尺寸公差 Size tolerance	抗拉强度 Tensile strength	盐务试验 Salt test	焊接性能 Welding performance	镀层厚度 Coating thickness
(mm)	(mm)	(N/mm2)
0.30	+0.015	2300-2600	>48hr	<2Sec	2-4μ
0.35	+0.015	2300-2600	>48hr	<2Sec	2-4μ
0.40	+0.015	2260-2550	>48hr	<2Sec	2-4μ
0.45	+0.015	2210-2500	>48hr	<2Sec	2-4μ
0.50	+0.015	2210-2500	>48hr	<2Sec	2-4μ
0.55	+0.020	2160-2450	>48hr	<2Sec	2-4μ
0.60	+0.020	2110-2400	>48hr	<2Sec	2-4μ
0.65	+0.020	2110-2400	>48hr	<2Sec	2-4μ
0.70	+0.020	2060-2350	>48hr	<2Sec	2-4μ
0.80	+0.020	2010-2300	>48hr	<2Sec	2-4μ
0.90	+0.020	2010-2260	>48hr	<2Sec	2-4μ
1.00	+0.020	1960-2210	>48hr	<2Sec	2-4μ
1.20	+0.030	1910-2160	>48hr	<2Sec	2-4μ
1.40	+0.030	1860-2110	>48hr	<2Sec	2-4μ
1.60	+0.030	1810-2060	>48hr	<2Sec	2-4μ