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Bearing material

Time：2017-06-28 Author:

Daily material

PART NAMEMATERIAL

Internal and external circl

AISI440C
9Cr18Mo		AISI440B
9Cr18		AISI304
0Cr18Ni9		AISI316
0Cr17Ni12Mo2

Steel bal

AISI440CAISI440CAISI304AISI316

Keeping device

AISI304AISI304

Seal and enclose

RS

Cover dustproofly

ZZ		ZZ
AISI304


The chemical composition of different stainless steel numbers
Stainless steel NO.C％Cr％Si％Mn％S％P％Mo％Ni％
AISI440B0.90-1.0017-19≤0.8≤0.8≤0.03≤0.035
AISI440C0.95-1.1016-18≤0.8≤0.8≤0.03≤0.0350.4-0.7
AISI304(304L)≤0.0717-19≤1≤2≤0.03≤0.0358-11
AISI316(316L)≤0.0816-18.5≤1≤2≤0.03≤0.0352-310-14


The contrast of bearing steel number of each country

CountryChinaU.S.AGermanyJapanFrance
DINW-Nr
Bearing
Steel
NO.
9Cr18AISI440BX90CrMoV181.4112SUS440Z105CrMo17
9Cr18MoAISI440CX105CrMo171.4125SUS440CZ105CrMo17
0Cr18Ni9AISI304X5CrNi18-101.4301SUS304Z7CN18-09
0Cr17Ni12Mo2AISI316X5CrNiMo17-12-21.4401SUS316Z7CND18-12-03
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