1. We purchase best material from famous steel mill in China, steel making process is EAF or ESR steel.

2.Upon receipt of raw material, HHF's QCP will inspect raw material quality before our production.

3. After each process, QCP will perform inspection, we will record the inspection result and keep the record according to the requirements of QMS.

4.We provide Mill certificate, includes Chemical compostition, Mechanical properties, UT test, MPI  test etc


 Products Name

Main Material

Size Range

Delivery Status


Carbon steel Grade 45 ,

or customized material includes

carbon steel and alloy steel

OD: 250mm to 1100mm

Length: is up to 12 meters

Single Weight:  up to 15 tons

Anealed, nomalized,

quenched & Tempered,



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