690MPa Structural JIS G4053 SMn420 Forged Steel Bar

Size available:
Flat:20~50 x 30~ 300mm

Steelmaking process: EF, EF/EAF+LF+VD, EF/EAF+ESR, hot forged/ hot rolled

Delivery condition: hot rolled, forged, annealed, quenched and tempered ,or as your special requirements.

Surface condition: black surface, polished surface, grinded surface, peeled surface, milled surface.

Packing details:In seaworthy packing, as your requirement.

Delivery details:within 30-50 days

Chemical composition(%):
C 0.17~0.23 Si 0.15-0.35 Mn 1.20-1.50 P 0.030max. S 0.030max. Cr 0.35Max. Ni 0.25Max. Cu 0.30Max.

Mechanical Properties:
Tensile Strength (MPa):690
Yield Point (MPa):540
Elongation (%):20
Reduction of Area (%):55
Impact Akv (J):98
Hardness (HB):201-277

Marking: Grade, heat NO. length will be stamped on each bar with required color.

Ultrasonic Test:Material will be ultrasonically tested at appropriate stages of the manufacture to ensure the quality, as agreed between seller and purchaser.

Quality assurance: ISO9001 certified, IQNet, CQC