Page 1664 - MiSUMi 2025

[Materials]
Varieties and Applications 2

4. Copper Alloy Materials
Type Material Applications Comment JIS Square Hexagonal Round Steel
Plate
Symbol
Bar
Bar
Bar
Brass Plate C2801P For Regular Sheet Metal Machining Used in high strength and JIS H 3100 k
Name Plates and Instrument Panels ductile sliding parts. Brass
Free-Cutting Brass C3604BD General turming bolts screws, nuts, Good Machinability JIS H 3250 k k k
(Extruded Bar) etc.
5. Cast and Forged Products, Copper Alloy Castings
Type Material JIS Symbol Material GB Symbol Applications Comment JIS GB
Gray Cast Iron, Class3 FC200 HT200 − GB/T 9439-
Gray Cast Iron, Class4 FC250 HT250 Cast Machine − JIS G 5501 2010
Parts
Spheroidal Graphite Cast Iron, Class4 FCD600 － − JIS G 5502 －
Bronze Casting, Class 6 BC6 ZCuSn5Pb5Zn5 Bearings, sleeves, bushings High pressure resistance and abrasion JIS H 5111 GB/T 1176-
2013
and general machine parts. resistance,and good machinability.
6. Steel Pipe Materials
Type Material Symbol Applications Comment JIS
Carbon Steel Pipe White Pipe (Zinc Galvanizing) Piping Parts At ambient temperature (Gas pipe).
SGP
A is metric specification. B is inch
for Ordinary Piping Black Pipe (No Plating) specification. JIS G 3452
Carbon Steel Pipe for STPG370 Operation temperature 350˚C.
Machine Pressure (STPG38) Piping Parts A is metric specification. B is inch JIS G 3454
Service specification.
Carbon Steel Pipe for General Machine
Machine Structural Use STKM Parts Hollow Shafts Available for class 11 to class 20. JIS G 3445
Seamless Brass Pipe Easy Flaring, Bending,
(Regular class) C2700T − Wringing and Plating JIS H 3300

7. Spring Materials
Type Material Symbol Applications Allowable Operating Temperature℃ JIS

wire.
Piano Wire SWP－A High strength, homogenous cold-drawn 110 JIS G 3522
SWP－B
For high quality springs and forming.
SWB Applicable to universal stress. 110
For low priced springs and forming.
Hard Steel Wire JIS G 3521
SWC For high quality springs and forming. 110
Carbon Steel for Spring Oil
Tempered Wire SWO－A Hardening and tempered. 120 JIS G 3560
Oil Tempered Steel Wire SWO－B For general-purpose springs.
Carbon Steel for Valve- Hardening and tempered.
Spring Oil Tempered Wire. SWO－V With a fine surface and uniform tensile 120 JIS G 3561
Oil Tempered Steel Wire strength
Cr-V Steel for Valve-Spring SWOCV－V Hardening and tempered. 220 JIS G 3565
Oil Tempered Steel Wire Loads and slightly high Temperatures.
Ci-Cr Steel for Valve-Spring SWOSC－V Hardening and tempered. 245 JIS G 3566
Oil Tempered Steel Wire Loads and slightly high Temperatures.
SUS302 (－WPA) For general corrosion and heat resistance 290
(－WPB) Available for magnetic spring.
For Springs SUS316 (－WPA) Heat Resistance is good. Higher 290 JIS G 4314
corrosion resistance than SUS302.
(－WPB)
Stainless Steel Wire Available for magnetic spring.
SUS631 Precipitation hardening after spring processing.
J1－WPC High strength and general corrosion resistance. 340
Available for magnetic spring.

B-019