Y1Cr18Ni9 (303) stainless steel

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 Stainless steel: Y1Cr18Ni9

 Standard: GB/T 1220-1992

 The characteristics and scope of application:

Improve the cutting, burning resistant.The most suitable for automatic lathe.Bolt, nut.

 The chemical composition of:

C: less than 0.15 of carbon

Silicon Si: ≤ 1

Manganese: Mn ≤ 2

S: S ≤ 0.15

P: P ≤ 0.20

Chromium, Cr:17.00 ~ 19

Nickel, Ni:8.00 ~ 10

Mo: add ≤ 0.60 Mo

 The mechanical properties of:

Tensile strength σ B (MPa ≥ 520):

Conditional yield strength σ 0.2 (MPa): 205

Elongation (%) 5: 40

Section shrinkage rate ψ (%): 50

Hardness: ≤ 187HB ≤ 90HRB ≤ 200HV;;

 The specification of heat treatment and microstructure of:

Heat treatment specification: solution 1010 ~ 1150 °C soon cold.

 Microstructure: the organization characteristics of austenitic.

 delivery state: general to heat treatment state of delivery, the type of heat treatment indicated in the contract; not marked, by heat treatment state of delivery.

 Executive standard:

 1, the British Lloyd's register LR

 2, the French ship's classification society BV

 3, Italy's RINA

 4, the United States of America classification society ABS

 5, Norway's DNV

 6, the German Lloyd's GL

7, the Japanese Maritime Association NK

 8, the Greek classification society HR

 9, Russian maritime register RS 

10, the Poland register of shipping PRS

 11, the Yugoslavia register of shipping JR

 12, the Bulgarian register of shipping BKR

 13, China Classification Society CCS

 14, the Czech register of shipping CSLR 

15, Korea classification society KR 

16, Indonesia's BKI

 17, the Romania register of shipping RN

 18, India's IRS

 19, the Croatia register of shipping CRS

  

 

Y1Cr18Ni9 (303) stainless steel