GB S31668 Stainless steels

Material group: Ferrous Alloys / Stainless steels

Country / Standard: China / GB

Data updates

Latest Update: 2026-05

Total number of updates: 22

Update History

2026-02 2026-01 2025-12 2025-11 2025-09 2024-11 2024-10 2024-03 2022-11 2021-11 2021-02 2020-08 2020-01 2018-11 2018-07 2017-12 2017-11 2017-03 2016-09 2016-08 2014-10

This material has 1502 properties — only a subset is shown here.

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GB S31668 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≤ 0.08

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

16.00 – 18.00

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

≤ 2.00

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-32-6

GB/T 1220: 2007 / Stainless steel bars

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GB S31668 Physical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 215 GPa

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Electrical Resistivity

val1 Ω∙mm²/m

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Density

val1 kg/dm³

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Electrical Conductivity

val1 S/m

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Heat Capacity

val1 J/(kg∙°C)

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Poisson Coefficient

val1

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Thermal Conductivity

val1 W/(m∙°C)

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Coefficient of Thermal Expansion (CTE)

val1 10^-6/°C

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This material has 1502 properties — only a subset is shown here.

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GB S31668 Heat Treatments

1000 - 1100°C, fast cold
Heat to ≥ 1040°C, rapid cooling.

GB S31668 Mechanical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Tensile Strength

500 — 1200 MPa

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Brinell Hardness (HB)

val1

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Elongation, A

val1 %

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Rockwell Hardness (HR)

val1

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Yield Strength, Rp0.2

val1 MPa

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Yield Strength, Rp1

val1 MPa

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Impact Energy

val1 J

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Reduction of Area

val1 %

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Vickers Hardness (HV)

val1

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GB S31668 International Equivalent Materials

Showing 15 of 735 results.

MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

0Cr18Ni12Mo2Ti

STANDARD

COUNTRY / PRODUCER

China

EQUIVALENCE CATEGORY

Official

MATERIAL

1.4571

STANDARD

DIN

COUNTRY / PRODUCER

Germany

EQUIVALENCE CATEGORY

Official

MATERIAL

X6CrNiMoTi17-12-2

STANDARD

AFNOR NF

COUNTRY / PRODUCER

France

EQUIVALENCE CATEGORY

Official

MATERIAL

X6CrNiMoTi17-12-2

STANDARD

DIN

COUNTRY / PRODUCER

Germany

EQUIVALENCE CATEGORY

Official

MATERIAL

X6CrNiMoTi17-12-2

STANDARD

COUNTRY / PRODUCER

European Union

EQUIVALENCE CATEGORY

Official

MATERIAL

0Cr18Ni12Mo3Ti

STANDARD

COUNTRY / PRODUCER

China

EQUIVALENCE CATEGORY

Official

MATERIAL

1.4571

STANDARD

AFNOR NF

COUNTRY / PRODUCER

France

EQUIVALENCE CATEGORY

Official

MATERIAL

SA-240 S31635

STANDARD

ASME

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Official

MATERIAL

A 240 Type 316Ti

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Official

MATERIAL

A 959 Type 316Ti

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Official

MATERIAL

1.4571

STANDARD

COUNTRY / PRODUCER

European Union

EQUIVALENCE CATEGORY

Official

MATERIAL

X04Cr17Ni12Mo2Ti

STANDARD

COUNTRY / PRODUCER

India

EQUIVALENCE CATEGORY

Official

MATERIAL

X6CrNiMoTi17-12-2

STANDARD

ISO

COUNTRY / PRODUCER

International

EQUIVALENCE CATEGORY

Official

MATERIAL

SUS316Ti

STANDARD

JIS

COUNTRY / PRODUCER

Japan

EQUIVALENCE CATEGORY

Official

MATERIAL

S31635

STANDARD

UNS

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Official

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

Need the full list of 735 international equivalents?

See all 735 equivalent grades with detailed mapping by standard, producer and equivalence category.

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735Cross References

187Composition
205Mechanical Properties
56Physical Properties
14Heat Treatment
-Metallography
-Machinability

18Stress-Strain
1Formability
-Fatigue
-Fracture
64Creep

-Joints
-Coatings
47Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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