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{"title":"Duplex S32304 Stainless Steel Rebar with Pickling Surface and Diameter 10-50mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/f1\/4e1466538659e8d39b1d75eb9e4f-200x200-1\/duplex_s32304_stainless_steel_rebar_with_pickling_surface_and_diameter_10_50mm.jpg","attrs":{"Minimum Order Quantity":"500 kg","Price":"US $2.72-3.53 \/ kg","Model NO.":"S32304","Shape":"Round"}}
{"title":"ASTM A276 Bright Annealing UNS S17400 Stainless Steel Round Bar with OD 6-300mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/89\/306dd724fb1650d6cc746b8a12eb-200x200-1\/astm_a276_bright_annealing_uns_s17400_stainless_steel_round_bar_with_od_6_300mm_and_precipitation_hardening.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $3.44-4.05 \/ kg","Shape":"Round"}}
{"title":"Hot Rolled Bright Surface 17-4PH Stainless Steel Round Bar UNS S17400 with OD 6","imgUrl":"https:\/\/img.chinax.com\/nimg\/29\/78\/81357b4c743262742d1174256c1f-200x200-1\/hot_rolled_bright_surface_17_4ph_stainless_steel_round_bar_uns_s17400_with_od_6_300mm.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $3.45-4.06 \/ kg","Shape":"Round"}}
{"title":"Grade 201 Stainless Steel Bright Bar Hot Rolled with Diameter 3mm - 50mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/ea\/ce4dbe173cf279904fc10574ef05-200x200-1\/grade_201_stainless_steel_bright_bar_hot_rolled_with_diameter_3mm_50mm.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $3.46-4.07 \/ kg","Shape":"Round"}}
{"title":"254smo\/1.4547 Bright Black Surface Stainless Steel Round Bar S31254 with OD 6","imgUrl":"https:\/\/img.chinax.com\/nimg\/3f\/55\/db5c514689afc19a56438986dd40-200x200-1\/254smo_2f1_4547_bright_black_surface_stainless_steel_round_bar_s31254_with_od_6_300mm.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $12-16.5 \/ kg","Shape":"Round"}}
{"title":"201 304 316L Stainless Steel Bright Bar with Bright Surface and OD 6-300mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/33\/b9\/fa51a4537525415c1dc402a007ce-200x200-1\/201_304_316l_stainless_steel_bright_bar_with_bright_surface_and_od_6_300mm_mirror_polished_stainless_steel_round_bar.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $1.48-4.11 \/ kg","Shape":"Round"}}
Stainless steel is categorized into martensitic, ferritic, austenitic, duplex stainless steel, and precipitation hardening stainless steel. Among these, duplex stainless steel is the most suitable for concrete structures. Duplex stainless steel contains both ferritic and austenitic phases, offering exceptional mechanical properties and resistance to chloride stress corrosion.
Over the past decade, advancements in duplex stainless steel smelting technology have reduced costs while improving performance, making stainless steel reinforcement increasingly viable for construction applications.
Common duplex stainless steel grades include 2205 and 2304, with 2304 being the most widely used for concrete structures. Containing 23% chromium and 4% nickel, 2304 forms a self-healing chromium-rich oxide film that ensures strong corrosion resistance. Its yield strength reaches 600MPa after processing, with excellent performance in elongation and elastic modulus. Additionally, 2304 is more cost-effective than 2205 and 316, offering better lifecycle cost efficiency while reducing dependency on nickel and molybdenum resources.
Composition of 2304 Stainless Steel
Element
Content (%)
C
0.03 max
Cr
21.5 min - 24.5 max
Fe
Balance
Mn
2.5 max
Si
1.0 max
S
0.03 max
P
0.04 max
Ni
3.0 min - 3.5 max
Cu
0.05 min - 2.0 max
N
0.05 min - 2.0 max
Mechanical Properties of 2304 Stainless Steel
Property
Value
Tensile Strength min
87 ksi (600 MPa)
Yield Strength (0.2% offset) min
58 ksi (400 MPa)
Elongation (% in 50mm) min
25
Hardness (Brinell) MAX
293
Hardness (Rockwell B) MAX
31
Benefits of Duplex 2304 Stainless Steel Rebar
Superior corrosion resistance with self-healing chromium oxide film
High yield strength of 600MPa with excellent elongation properties
More cost-effective than traditional 316 and 2205 stainless steel grades
Service life exceeding 120 years in appropriate applications
Reduces maintenance costs and eliminates reconstruction expenses
Minimizes need for additional anti-corrosion measures
Strategic use in key structural components increases total project cost by only ~2%
Significantly reduces lifecycle costs while ensuring structural integrity
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
