Steel Wire & Rope

Spring Wire

Austenitic stainless steel has a several excellent characteristics as follows.

Prominent resistance to corrosion, dispensing with rust preventive plating.

Very strong even when exposed to heat, which makes it an ideal material for heat-resistant spring.

Non-magnetic or slightly magnetic is suitable for use in electrical applications.

Type 302, 304 is most popular Austenitic stainless steel used for manufacture of spring because of its outstanding mechanical properties and corrosion resistance. Type 316 is used for required high corrosion resistance and non-magnetic property, but its mechanical properties are inferior to those of type 302, 304.

Type of steel

Type

Chemical composition(%)

AISI

SUS

C

Si

Mn

P

S

Ni

Cr

Others

302

302

0.15max

1.00max

2.00max

0.045max

0.030max

8.00-10.00

17.00-19.00

-

304

304

0.08max

1.00max

2.00max

0.045max

0.030max

8.00-10.50

18.00-20.00

-

316

316

0.08max

1.00max

2.00max

0.045max

0.030max

10.00-14.00

16.00-18.00

Mo 2.00-3.00

(631)

631J1

0.09max

1.00max

1.00max

0.040max

0.030max

7.00-8.50

16.00-18.00

Al 0.75-1.50

Type of surface

Class

Type

Symbol

Diameter(mm)

Surface

AISI

SUS

Austenite

302

304

WPA

0.2~5.0

BrightS-CoNi-Co

304

304

316

316

302

304

WPB

0.2~5.0

BrightS-CoNi-CO

304

304

631

634J1

WPC

0.2~5.0

S-Co

Low-temperature temperingWhen stainless steel springs are tempered at low temperature after coiling, their elastic limit rises and spring characteristic are improved. The best condition for tempering stainless steel spring is 400(752F) for 30 minutes.

Typical Rope Constructions

Point Contact Lay Rope

6x7FC

6x19FC

6x37FC

6x61FC

7x7WSC

7x19WSC

7x37WSC

6x37IWRC

6x61IWRC

Marine Rope

6x12FC

6x24FC

6xS(24)FC

6x30FC

Elevator Rope

6xFi(25)FC

8xS(19)FC

8xW(19)FC

8xFi(25)FC

Non-Rotating Rope

17x7FC

18x7FC

19x7

35x7

8xS(19)IWRC

8xFi(25)IWRC

4xFi(29)FC

4xWS(36)FC

4x24FC

Typical Rope Constructions

Linear ContactLay Rope6x19 Class

6xS(19)FC

6xS(19)IWRC

6xW(19)FC

6xW(19)IWRC

6xFi(21)FC

6xFi(25)FC

6xFi(25)IWRC

6xWS(26)FC

6xWS(26)IWRC

Linear ContactLay Rope6x37 Class

6xFi(29)FC

6xFi(29)IWRC

6xWS(31)FC

6xWS(31)IWRC

6xWS(36)FC

6xWS(36)IWRC

6xWS(41)FC

6xWS(41)IWRC

6xSeS(37)FC

6xSeS(37)IWRC

6xFiS(49)FC

6xFiS(49)IWRC

6xFiS(37)IWRC

6xWS(37)FC

6xFi(33)IWRC

6xSWS(49)FC

6xSWS(49)IWRC

6xSFi(36)FC

6xSFi(41)IWRC

Typical Rope Construction

CompactWireRope

6x7FC

6xS(19)FC

6xS(19)IWRC

6xWS(26)FC

6xWS(26)IWRC

6xFi(29)FC

6xFi(29)IWRC

6xWS(31)FC

6xWS(31)IWRC

6xWS(36)FC

6xWS(36)IWRC

19x7

35x7

19x19(S)

SwagedWireRope

4xSeS(39)FC

4x30FC

4x40FC

6xWS(31)IWRC

CableLaidRope

GuardRope

6x7FC

6xS(19)FC

6xWS(26)FC

GalvanizedSteelStrand

1x3

1x7

1x19

1x37