301S21 Chemical information,Mechanical properties

Physical properties, Mechanical properties, Heat treatment, and Micro structure

This page is mainly introduced the 301S21 chemical information,mechanical

properties, physical properties, mechanical properties, heat treatment, and Micro
structure, etc. It also contains the use of 301S21,such as it is commonly used in bars,
sheet,plates, steel coils, steel pipes,forged and other materials application.

Data Table for Grades Stainless Steels & Special

Steels 301S21

301S21 Standard Number:

ITEM Standard Number Descriptions

1 BS 1449-2 Steel plate, sheet and strip. Specification for stainless and heat-resisting steel
plate, sheet and strip

2 BS 5770-4 Steel strip intended for the manufacture of springs. Specification for martensitic
and austenitic stainless steel

301S21 Chemical composition(mass fraction)(wt.%)

Chemical Min.(%) Max.(%)

C 0.15

Si 1.00

Mn 2.00

P 0.045

S 0.03

Cr 16.00 18.00

Mo

Ni 6.00 8.00

301S21 Physical Properties

Tensile strength 115-234 σb/MPa

Yield Strength 23 σ 0.2 ≥/MPa

Elongation 65 δ5≥ (%)

ψ - ψ≥ (%)

Akv - Akv≥/J

HBS 123-321 -

HRC 30 -

301S21 Mechanical Properties

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 301S21 Chemical information,Mechanical properties
Physical properties, Mechanical properties, Heat treatment, and Micro structure

Tensile strength 231-231 σb/MPa

Yield Strength 154 σ 0.2 ≥/MPa

Elongation 56 δ5≥(%)

ψ - ψ≥(%)

Akv - Akv≥/J

HBS 235-268 -

HRC 30 -

301S21 Heat Treatment Regime

Annealing Quenching Tempering Normalizing Q&T

√ √ √ √ √

301S21 Range of products

Product type Products Dimension Processes Deliver Status

Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and Annealed, Solution and
cold rolling Aging, Q+T, ACID-
WASHED, Shot Blasting

Steel Bar Round Bar, Flat Bar, Φ8-1200mm*L Forging, hot rolling and Black, Rough Turning,
Square Bar cold rolling, Cast Shot Blasting,

Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot- Annealed, Solution and
Rolled Aging, Q+T, ACID-
WASHED, Shot Blasting

Pipes / Tubes Seamless Pipes/Tubes, OD:6-219mm x Hot extrusion, Cold Annealed, Solution and
Welded Pipes/Tubes WT:0.5-20.0mm Drawn, Welded Aging, Q+T, ACID-
WASHED

We can produce Stainless Steels & Special Steels the specifications

follows:

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