High Quality Special Steel Tool Steel Alloy Steel D2 1.2379 Cr12mov

Grade

C

Si

Mn

S/P

Co

W

Mo

Cr

V

M2

0.85

0.30

0.35

0.008/0.020

----

6.00

5.00

4.20

2.00

M35

0.91

0.32

0.35

0.005/0.015

4.80

6.30

4.98

4.10

1.95

M42

1.10

0.51

0.35

0.005/0.018

8.25

1.70

9.51

3.85

1.15

T1

0.77

0.37

0.29

0.008/0.020

----

17.5

----

4.10

1.10

T4

0.77

0.37

0.30

0.010/0.020

5.00

18.2

----

4.20

1.15

Item

Temperature
℃

Density
g/cm3

Modulus of elasticity
KN/mm2

Coefficient of thermal expansion

Heat transfer coefficient
W/m℃

Specific heat
J/Kg℃

M2

20

8.16

225

24

420

400

8.06

200

1.21 x 10-6

28

510

600

8.00

180

1.26 x 10-6

27

600

M35

20

8.19

228

21

400

400

8.11

210

1.19x10-6

26

490

600

8.05

195

1.21x10-6

23

530

M42

20

8.18

230

22

395

400

8.10

215

1.18x10-6

27

485

600

8.03

201

1.95x10-6

25

525

Diameter

5mm-800mm According to the requirements

Length

100mm-1200mm According to the requirements

Outer Dia:

20mm-610mm According to the requirements

Delivery Condition

Heat Treatment ,Cold Drawn

Advantages

Dia< 10.00 mm, cold drawn, on request also ground; ISO h8 Dia > 10.00 mm, cold drawn, on request also ground; ISO h9
Tighter tolerances on request
Out of roundness standard: ½ of diameter tolerance

Finish Line

Straightening machines
Milling and chamfering devices
Surface control (Circograph, Circoflux)
Ultrasonic control device
Antimixing control - spectrotest devices
Packaging, marking

Mechanical Property

Delivery status: Tensile strength (Rm): 570 -820 MPa, size depending

Bar Processing

Heat treatment: soft annealing, normalising, isothermal, spheroidising and stress relieving treatments, quenching and tempering
Peeling

Color

primary color

Standard

ISO / JIS / AS / EN / ASTM

Special use

Free cutting steel

Materials

10#,20#, 45#,16Mn,A106(B,C),A53(A,B),API J55,API K55,Q235,Q345,ST35.8,ST37,ST42,ST45,ST52

Inspection

ISO,BV,SGS,MTC

Adopt standard

GB/T 700-2006,GB/T 1591-94,JIS G3101-2004,ASTM A36/A36M-05,ASTM A242/A242M-04,ASTM A529/A529M-05,ASTM A572/A572M-06,EN
10025-2-2004.

Grade

Q195, Q215 A, Q215 B, Q235 A, Q235 B, Q235C, Q235D, Q275, Q275B, Q275C, Q275D, Q295, Q345, Q390,Q420,
Q460,SS330,SS400,SS490,SS540,A36,1,GR.36,50(245),55(380),42(290),
60(415),65(450),S185(1.0035),S235JO(1.0114),S235JR(1.0038),S235J2(0.0117),S275JR(1.0044),S275JO(1.10143),S355JO(1.0553),E295(1.0050),E335(1.0060),S235J2W(1.861),S355J2W(1.8965),10#,15#20#.

Section Shape

Round, square, angle, hexagonal, flat, shaft.

Process of product:

Check the raw materia→Blank → Grind the burr of blanked material → Heat in the intermediate frequency heating furnace → Align →
Quench → Temper → Inspect → Package

Surface treatment

Polished, black, grinding,customized according to requirements

Application

carbon steel round bar can be used :1): in many fields such as building, automobile, shipbuilding, petrochemical, machinery,
medicine, food, electric power, energy, space, building and decoration, etc.
2): Can be made into mould template, mortise pin, column.
3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation,
especially made into some connecting rods, bolts, wheel gear.
4): This kind of steel is the most common blanks and materials of shaft parts.Its die welding material model is CMC-E45.

Alloy Steel

5140,5115,5120,5130,5145,4118,4130,4135,6150,5115,4142,4130,4118,6150,4140,4720,4320
,E9310,8620,4340

Tool Steel

H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419,
SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2

Bearing Steel

GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50

Spring Steel

9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150,
SUP10,51CrV4,1.8159

Stainless Steel

321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028,
434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057,201,202,301