100CrMn6 (W4)
2015-04-03 09:26:16   Origin：   Remark：0 Click：

RAW MATERIAL SPECIFICATIONS - Grade DIN 100CrMn6
MATERIAL CATEGORY: Bearing steel
STOCK LIST & INVENTORY on hand - Round bar diameter 80 - 220mm
MATERIAL SPECIFICATIONS - DIN 17230 (1980)
CHEMICAL COMPOSITION (Mass weight - %)
C (％):     0.93 ~ 1.05
Si (％):     0.45 ~ 0.75
Mn (％):   1.00 ~ 1.20
P (％)≤:   0.025
S (％)≤:   0.015
Cr (％):    1.40 ~ 1.65
Mo (％):   -   others Al ≤ 0.050, Cu ≤ 0.30
DIFFERENT HARDNESS OF BEARING STEEL
Annealed condition ≤HBS:  217
Quenched condition HRC| water quenched:  -
Quenched condition HRC| oil quenched:       66
HRC|100℃:    65
HRC|150℃:    63
HRC|200℃:    61
HRC|250℃:    59
HOT WORKING AND HEAT TREATMENT
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃|annealed:     750～800
Heat treatment temperature /℃|normalized:  860～890
Heat treatment temperature /℃|quenched:    830～870oil
Heat treatment temperature /℃|tempered:    150～170
PERFORMANCE REQUIREMENT
Higher contact fatigue strength
Superior hardness after heat treatment
Superior abrasive resistance,low friction coefficient
Superior limit of elasticity
Excellent impact toughness and fracture toughness
Excellent dimensional stability
Excellent anti-corrosion performance
Excellent cold,hot-working character
CLASSIFICATION AND APPLICATION
Bearing steel is a type of steel used in the field of fabricating the ball, pin roller, sleeve for antifriction bearing. and also measuring implements, cold-punching die, lead screw and precision components of diesel engine oil pump. Bearing steel is divided into high-carbon chromium bearing steel, carburizing bearing steel, stainless bearing steel, high temperature bearing steel, medium-carbon bearing steel.
Generally, condition of delivery is hot rolled+annealing, cold drawn+annealing.
PRODUCT PROFILE
Round bar / Wire rod (Diameter1): 5.5mm to 650mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.