round steel/bar M2 round bar steel bar

the round steel bar can be used to make mould,cutting tools,and so on. Specifications

Hot-rolled Round barH13, M2, W9, W4. Annealed or Ground

Hot-rolled Round bar

Specification: Diameter 8mm---32mm

Length 2000----4500mm

Application: Be used for making all kind of Drills

Delivery Condition: Annealed or Ground

Package: Suitable for export

The detailed material we could offer:

1. 7Cr7Mo2V2Si (GB)

Chemical Composition: C 0.74, Si 1.10, Mn 0.45, P≤0.030, S≤0.030, Cr 7.10, W ≤0.50,

Mo 2.10, V 1.80

Annealed Hardness: HB≤255

Heat treatment temp: Hardening 1100-1150 Temperings 530

Secondary 61-63 HRC

Application: Steel for pressing mold, extrusive mold and tensile mold

2. 4Cr5MoSiV1, it is similar to H13(ASTM), 1.2344(DIN), SKD61(JIS)

Chemical Composition: C 0.39, Si 1.10, Mn 0.30, P≤0.028, S≤0.020, Cr 5.10, W ≤0.30,

Mo 1.35, V 0.90

Annealed Hardness: HB≤235

Heat treatment temp: Hardening 1020 Temperings 530-560

Secondary 54-57HRC

Application: For making Aluminum pressing mold, extrusive mold and plastic mold

3. W6Mo5Cr4V2 ,it is similar to M2( ASTM), S6-5-2(DIN), SKH51(JIS)

Chemical Composition: C 0.85, Si 0.38, Mn 0.35, P≤0.030, S≤0.030, Cr 4.10, W 6.00, Mo 4.80 V 1.85

Annealed Hardness: HB≤255

Heat treatment temp: Hardening 1210-1230 Temperings 550

Secondary 63-65 HRC

Application: Be used widely in making all kinds of knives and durable cold working molds

4. W9Mo3Cr4V

Chemical Composition: C 0.83, Si 0.35, Mn 0.35, P≤0.030, S≤0.030, Cr 4.05, W 8.90, Mo 2.90 V 1.45

Annealed Hardness: HB≤255

Heat treatment temp: Hardening 1220-1240 Temperings 550

Secondary 63-65 HRC

Application: Chinese material, similar capability to M2