Special steel of steel round bar
Specification:AISI4130/25crmo
Other steel grade:4140, 4340, 5140, 9840, 34crnimo6, c45n, s355j2g3, or we supply the grade according the customer's requirement.
Size:170mm to 700mm.
Delivery condtion:hot forged+normalized+rough turned+quenched and tempered.
Size tolerance:-0/+2mm,
Length:4m and up, or fix length according the customer's required.
Ultrasonic test:sep1921 class 3 c/c.
Used for the oil field.
Delivery time:within 70 days after order.
Loose packing,the weight from 2 tons to 13 tons.
