Stainless Steel 304 / UNS S30400 / 1.4301

Stainless Steel 304 / UNS S30400 / 1.4301
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Type:
Pipes
Plates
Bars
Fittings
Forgings
Flanges
Prefabrication
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Description
Technical Parameters

Stainless Steel 304 Main features

 

304 stainless steel are T-300 series heat resistant austenitic alloy. 304 is a general purpose stainless steel that is widely used to make equipment and parts that require a good combination of properties (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel content.

As a widely used steel, 304 stainless steel has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, no heat treatment hardening phenomenon (use temperature -196 ℃ ~ 800 ℃) . Corrosion resistance in the atmosphere, if it is an industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. Has good processability and weldability. Plate heat exchangers, bellows, household products (Class 1 and 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry , agriculture, ship parts, etc. The 304 stainless steel with strictly controlled content can also be called food grade 304 stainless steel.
 

Stainless steel 304 Chemical Composition,%

 

Grade

C≤

Mn≤

P≤

S≤

Si≤

Cr

Ni

N≤

304

0.08

2.0

0.045

0.03

0.75

18.0-20.0

8.0-11.0

0.1

 

Stainless steel 304 Mechanical Properties

 

Grade

Tensile, min, ksi[MPa]

Yield, min, ksi[MPa]

Elongation, %(min)

Hardness, HB(max)

304

75【515】

30【205】

40

201

 

Physical properties

Density: 7.9 g/cm3

 

Stainless steel 304 Equivalent Grades

 

STANDARD

WERKSTOFF NR.

UNS

JIS

BS

GOST

AFNOR

EN

304

1.4301

S30400

SUS304

304S31

08Х18Н10

Z7CN18‐09

X5CrNi18-10

 

ASTM SPECIFICATION

 

Pipe,
SMLS& Welded

Tube,
SMLS& Welded

Tube,
Seamless

Sheet/Plate

Bar /Rod

Forging /Flange

BW Fittings

ASTM A312

ASTM A269

ASTM A213

ASTM A240

ASTM A276/A479

ASTM A182

ASTM A403

 

SS 304 Application Industries

 

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Pharmaceutical processing industry
  • Modern architecture
  • Water waste projects
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing

 

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