AISI 4140 Forged Rings / Discs, AISI 4140 Bearing Ring Forgings, AISI 4140 Ring Gears, AISI 4140 Forging Gears, AISI 4140 Ring Forgings within wind turbine

AISI 4140 is Chrome Moly High Tensile Steel, according to the standard of ASTM A29 / A29M. 

AISI 4140 bearing ring forgings offer good balance on stength, toughness and wear resistance and etc.

Our raw material for AISI 4140 ring forgings require EAF+LF+VD melting methods.                                                                                                            

With the heat treatment for AISI 410 ring forgings, normally we using normalized+Quenched+Tempered or Quenched and Tempered to meet the technical  requirements of customers. 

Mechanical Properties of AISI 4140 after Heat treatment:

Tensile Strength:    130 KSI Min  (896 N/mm²)

Yield Strength:        110 KSI Min  (758 N/mm²) 

Elongation:               13%

Red of Area:              30% 

There are three miils: ø 1600mm, ø 3000mm, ø 5000mm ring roller mills, forging workshops.

With machining, heat treatment workshops and experienced workers, enable our company manufactures all kinds of ring forgings, seamless rolled ring products to support our customer worldwide.

We supply AISI 4140 Forged Rings / Forgings pre-turned Ring Parts as per certificate EN10204-3.1.

Ultransonica Testing will be as per standard as ASTM A388 or EN10228-3,  100% UT will be done for AISI  4140 Bearing Ring Forgings.

Seamless rolled rings and Forged rings for Capital Equipment Industry

L Seamless rolled rings for slewing rings

L Seamless rolled rings for neck rings

L Seamless rolled rings for large gear rings and crown gears

L Seamless rolled rings for pinion gears

L Seamless rolled rings for connecting flanges

L Seamless rolled rings for couplings

L Seamless rolled rings for sealing rings

L Axles and rollers for roller mills