Detailed Product Description

hot rolling square bar

Specification:

Precisely-forged square bar  20mm -150mm

Hot-rolled square bar       9.5mm*9.5mm---25.5mm*25.5mm

Application: Be used for making Hss Squrare Tool Bits, broch

Delivery Condition: Annealed, After Heat-Treatment, Finished goods

Package: Suitable for export

The detailed material we could offer:

1. 4Cr5MoSiV1 (GB) 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

2. 4Cr5MoSiV (GB), it is similar to H11 (ASTM), 1.2343(DIN), SKD62 (JIS)

3. 3Cr2MoW8V (GB), it is similar to H21 (ASTM), 1.2581 (DIN), SKD5 (JIS)

4. W6Mo5Cr4V2 (GB), 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

5. 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