1.3553
2015-04-07 10:56:23 Origin： Remark：0 Click：
DIN 17230 Material specification 1.3553 Round bar, Flat bar, Wre rod, Sheet 1.3553 Steelmaking, Blooming, Forging, Rolling, Heat treatment
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION - X82WMoCrV6-5-4 & 1.3553
MATERIAL CATEGORY: Bearing steel
MATERIAL SPECIFICATIONS: DIN 17230 (1980)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.78 ~ 0.86
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): ≤ 0.40
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 3.90 ~ 4.30
Molybdenum, Mo (％): 4.70 ~ 5.20
Other (％): Vanadium 1.70～2.00, Tungsten, 6.00 ~ 6.70, Copper ≤ 0.30
DIFFERENT HARDNESS OF BEARING STEEL
Annealed condition ≤HBS: 300
Quenched condition HRC| water quenched: -
Quenched condition HRC| oil quenched: 66
HRC|100℃: -
HRC|150℃: -
HRC|200℃: -
HRC|250℃: -
Annealed condition ≤HBS: 300
Quenched condition HRC| water quenched: -
Quenched condition HRC| oil quenched: 66
HRC|100℃: -
HRC|150℃: -
HRC|200℃: -
HRC|250℃: -
HOT WORKING AND HEAT TREATMENT
Hot working temperature /℃: 1100～900
Heat treatment temperature /℃|annealed: 780～820
Heat treatment temperature /℃|normalized: -
Heat treatment temperature /℃|quenched: 1180～1230oil
Heat treatment temperature /℃|tempered: 540～560
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 DESCRIPTION
The alloy is usually produced by LF /EAF /IFF /VD followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment
The alloy is usually produced by LF /EAF /IFF /VD followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
PRODUCT PROFILE
Round bar / Wire rod (Diameter1): 5.50mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter1): 5.50mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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