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Stainless Steel Reinforcing Bars (Rebar)
Alloy Grades       Go To Rebar Standards


A range of stainless alloy types is available for rebar selection, to meet the mechanical design aspects and the expected corrosivity of the environment.

Stainless steels are produced in five alloy groups: austenitic, ferritic, duplex (ferritic-austenitic), martensitic and precipitation hardened. These groups have different microstructures, which are determined by the selected chemical compositions and the production steps involved.

For stainless reinforcing bar applications, austenitic and duplex alloys have generally received the most attention. Their chemical compositions and mechanical properties are listed in the tables below.

Chemical Compositions of Stainless Steels used for Rebars

Grade

UNS No.

Cr

Ni

Mo

C (max.)

N

Type

304 S30400 19 9.5   0.08   austenitic
304L S30403 19 10   0.03   austenitic
316 S31600 17 12 2.5 0.08   austenitic
316L S31603 17 12 2.5 0.03   austenitic
316LN S31653 17 12 2.5 0.03 0.13 austenitic
2205 S31803 22 5 3.0 0.03 0.14 duplex
others              

Nominal compositions in weight percent, balance Fe.


Typical Mechanical Properties of Stainless Steels used for Rebars

Type

Yield Strength (MPa)

Tensile Strength (MPa)

Elongation (%)

Magnetic

Austenitic

205-500

550-860

30-60

No*

Duplex

330-560

570-1000

25-40

Yes

* Austenitic alloys may become magnetic if cold-worked


Go To Rebar Standards


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