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Date Published:May. 10. 2016

Steel

Carbon steel bar, wire elements and wire compliant with JIS standards

Steel bar and wire elements
Standard No.
 Standard name
 Symbol
Primary usage
G 3101 Rolled steel material for general structure
 SS Bolts, nuts and pins
G 4051 Carbon steel materials for machine structure
 S-C Nuts, bolts, shafts and automobile components
G 3108 General steel materials for cold finished steel bar
 SGD Nuts, shafts and automobile components
G 4804 Sulfur and sulfur composite free-cutting steel materials
 SUM Components of precision equipment such as clocks and cameras and automobile components
G 4401 Carbon tool steel materials
 SK Cutting tools, set files, chisel and engraving
G 3112 Steel bar for reinforced concrete
 SR、SD Reinforcing bar for concrete
G 3123 Cold finished steel bar
 SGD-D Nuts, shafts and automobile components
G 3104 Round steel for rivet
 SV Rivet
G 3105 Round steel for chain
 SBC Chain
G 3109 PC steel bar
 SBPR For prestressed concrete


 
Wire elements
Standard No.
 Standard name
 Symbol
G 3505 Mild steel wire elements
SWRM
G 3506 Hard steel wire elements
 SWRH
G 3502 Piano wire elements
 SWRS
G 3507 Carbon steel wire elements for cold forging
 SWRCH
G 3503 Wire elements for core wire of film arc welding bar
 SWRY


 
Wire
Standard No.
 Standard name
 Symbol
 Usage examples
G 3532


G 3544 		                Normal iron wire
Iron wire　Annealed iron wire
                Iron wire for nails
Hot-dip aluminum plated iron wire and steel wire
 SWM-B
SWM-A
SWM-N
SWMA		 General and for metal mesh
General and for metal mesh
For nails
Various metal mesh
G 3521

G 3538

G 3525
G 3560
G 3537
G 3544 		Hard steel wire

PC hard steel wire

Wire rope
Oil temper wire for spring
Zinc plated stranded steel wire
Hot-dip aluminum plated iron wire and steel wire
 SW

SWCR
SWCD

SWO-A、B

SWHA 		Various wire springs, wire rope, steel cord, bead wire
and spoke wire Prestressed concrete tank and pipe

Wire rope
Various wire spring
Overhead earth wire, counterpoise and catenary wire
Overhead earth wire, catenary wire and core wire for ACSR
G 3522

G 3536

G 3561

G 3544 		Piano wire

PC steel wire and PC stranded steel wire

Oil temper wire for valve spring

Hot-dip aluminum plated iron wire and steel wire
 SWP

SWPR
SWPD
SWO-V

SWHA 		Valve spring, music wire, high-class rope and steel cord
Prestressed concrete

Valve spring

Overhead earth wire, catenary wire and core wire for ACSR
G 3539 Carbon steel wire for cold forging
 SWCH Bolts, nuts, small screws and rivets
G 3523 Core wire of film arc welding bar
 SWY Core wire for welding bar
Excerpted from JSME's Mechanical Engineers' Handbook
 

Main types and mechanical properties of iron and steel materials

Material name
 Symbol
 Tensile Strength
（N/mm2）		 Yield point
（N/mm2）		 Hardness
 Extension
（％）
Rolled steel material
for general structure
 SS330 330 - 430 195 or above - 26 or above
SS400 400 - 510 235 or above - 21 or above
SS490 490 - 610 275 or above - 19 or above
Hot-rolled mild steel plate
and steel strip
 SPHC 270 or above - - 27 - 31 or above
SPHD 270 or above - - 30 - 39 or above
SPHE 270 or above - - 31 - 41 or above
Cold-rolled steel plate
and steel strip
 SPCC （270 or above） - 1/8 hardness : 50 - 71HRB、95 - 130HV
1/48 hardness：65 - 80HRB、115 - 150HV
1/28 hardness：74 - 89HRB、135 - 185HV
Rigid : 85HRB or above and 170HV or above		 （32 - 39 or above）
SPCD 270 or above - 34 - 41 or above
SPCE 270 or above - 36 - 43 or above
Carbon steel materials
for machine structure
 S25C-N 440 or above 265 or above 123 - 183HB 27 or above
S35C-N 305 or above 305 or above 149 - 207HB 23 or above
S35C-H 390 or above 390 or above 167 - 235HB 22 or above
S45C-N 570 or above 345 or above 167 - 229HB 20 or above
S45C-H 690 or above 490 or above 201 - 269HB 17 or above
Chrome steel materials
 SCr430 780 or above 635 or above 229 - 293HB 18 or above
SCr435 880 or above 735 or above 255 - 321HB 15 or above
SCr440 930 or above 785 or above 269 - 331HB 13 or above
Chromium-molybdenum
steel materials
 SCM430 830 or above 685 or above 241 - 302HB 18 or above
SCM435 930 or above 785 or above 269 - 331HB 15 or above
SCM440 980 or above 835 or above 285 - 352HB 12 or above
Carbon tool steel materials
 SK3 - - 212HB or above for annealing
63HRC or above for quenching and tempering		 -
High carbon chrome
bearing steel materials
 SUJ2 - - 201HB or less for spheroidizing annealing
94HRB or less for spheroidizing annealing		 -
SUJ3 - - 207HB or less for spheroidizing annealing
95HRB or less for spheroidizing annealing 		-
Carbon steel forgings
 SF340A 340 - 440 175 or above 90HB or above 27 or above
SF440A 440 - 540 225 or above 121HB or above 24 or above
SF540A 540 - 640 275 or above 152HB or above 20 or above
Carbon steel castings
 SC360 360 or above 175 or above - 23 or above
SC410 410 or above 205 or above - 21 or above
SC450 450 or above 225 or above - 19 or above
SC480 480 or above 245 or above - 17 or above
Gray cast iron FC150 150 or above - 212HB or less
（diameter of as-cast sample: 30mm）		 -
FC200 200 or above - 223HB or less
（diameter of as-cast sample: 30mm）		 -
FC250 250 or above - 241HB or less
（diameter of as-cast sample: 30mm）		 -
FC300 300 or above

-

 262HB or less
（diameter of as-cast sample: 30mm）		 -
Nodular graphite cast iron
 FCD400 400 or above 250 or above
 201HB or less
 15 or above
FCD450 450 or above 280 or above
 143 - 217HB 10 or above
FCD500 500 or above 320 or above
 170 - 241HB 7 or above
FCD600 600 or above 370 or above
 192 - 269HB 3 or above
Stainless steel bar
 SUS303 520 or above - 187HB or less 40 or above
SUS304 520 or above - 187HB or less 40 or above
SUS410 540 or above - 159HB or above 25 or above
SUS416 540 or above - 159HB or above 25 or above
SUS440C 780 or above - 56HRC or above 15 or less
●The values in the above table are representative values and may vary depending on steel thickness and heat treatment.


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