Trademark of Steel and Chemical composition

单位为质量百分数

Trademark

C

Si

Mn

P

S

Ni

Cr

n

0Cr17Ni9(304)

≤0.07

≤ 1.00

≤ 2.00

≤0.035

≤0.030

8.00-11.00

17.00-19.00

-

1Cr17Ni9(302)

≤0.15

≤ 1.00

≤ 2.00

≤0.035

≤ 0.030

8.00-10.00

17.00-19.00

-

0Cr18Ni7(HH304)

≤ 0.09

≤1.00

≤ 2.00

≤0.035

≤ 0.030

7.00-10.00

 15.00-19.00

-

1Cr15Mn8Ni3N(HH202)

≤0.15

≤1.00

≤7.50-12.00

≤0.060

≤0.030

2.50-5.00

13.00-17.00

≤0.25

1Cr14Mn10Ni2N(HH201)

≤0.15

≤1.00

≤7.00-15.00

≤0.060

≤0.030

0.60-2.50

12.00-16.00

≤ 0.25

注:经供需双方商定,可使用其它化学成分的钢材.

Allow the deviation of outer diameter and the length of the rim

单位:mm

The statc of providing product

Outer diameter of the length of the rim

Allow the deviation

Staete of burnished or State of Polishing

≤25

±0.20

＞25-40

±0.30

＞40-50

±0.36

＞50-60

±0.40

＞60-70

±0.46

＞70-80

±0.50

＞80

±0.55%D

State of no Rub or State of artesian

≤25

±0.30

＞2550

±0.50

＞50

±1.0%D

The deviation thick with the wall allows:should not be greater than± 25%of standard valuc

The length allows the deviation:should be mm

Trademark of Steel

屈服强度ó_p0.2

MPa

抗拉强度ó_b

MPa

断后伸长率ó₅

%

硬度HB

0Cr17Ni9(304)

1Cr17Ni9(302)

0Cr17Ni7(HH304)

≥205

≥520

≥35

≥190

1Cr15Mn8Ni3N(HH202)

1Cr14Mn10Ni1N(HH201)

≥220

≥550

≥25

≥250

注:其它牌号钢材的力学性能,由供需双方商定.