403 Stainless Steel Sheet Manufacturer

403 Stainless Steel Sheet

403 Stainless Steel Sheet Manufacturer in China

The 403 stainless steel sheet is heat and rust-resistant steel. It has 12% Cr martensitic alloy which is very similar to type 410 stainless steel panel. Alloy 403 has a scaling temperature of roughly 1300°F. With this alloy, one can achieve good levels of strength, ductility, and hardness.

TuoLian 403 stainless steel panel can be easily tempered at 732°C. Thus, improving fracture toughness. It can be easily hardened by a fan, oil, or air cooling. TuoLian provides 403 plates according to national and international standards. And industrial norms as well. We offer full customization in products depending on various needs.

Leken 403 Stainless Steel Sheet Advantage


403-panel maximum corrosion resistance is achieved by polishing and hardening. It can create an oxide film with high adhesion.

Oxidation Resistance
Oxidation Resistance

It can withstand oxidation up to 760°C. Continuous service shouldn’t allow temperatures to rise above 649-704°C.

Packaging & Delivery
Packaging & Delivery

TuoLian is an expert in safe shipping, on-time delivery, and high-quality manufacturing that lowers customers’ overall costs.

Product Marking
Product Marking

Before sending the goods out for delivery, we mark them with information about the product, such as the batch number, client’s name, trademark, etc.

Testing Methods: Destructive and Non-Destructive

  • Mechanical Testing such as Tensile and Elongation
  • Test for Buckling and Crushing
  • Test with Eddy Current
  • Performing a Corrosion Test
  • Radiographic Examination
  • Recognizing Positive Materials
  • Chemical Analysis
Testing Methods Destructive and Non-Destructive
403 SS Sheet Quality Testing

TuoLian 403 SS Sheet Quality Testing

The Stainless Steel 403 Plates’ quality is assured and certified by these numerous testing criteria.

  • Macro test
  • Micro test
  • Flaring test
  • Hardness test
  • Flattering test
  • and many more.

SS 403 Plates Processing

  • Hot-rolled
  • Cold-rolled
  • Cutting
  • Forming Drilling
  • Grinding
  • Polishing
SS 403 Plates Processing
403 Stainless Steel Sheet Industrial Application

403 Stainless Steel Sheet Industrial Application

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • Power Generation Industry
  • General Structural Purposes
  • Offshore and Onshore Services

403 SS Panel For Various Component Assembly

  • Steam turbine buckets
  • Compressor blades
  • Turbine parts
  • Bucket covers
  • Forged valves
  • Shafting, fasteners,
  • Valve components
  • Medical instruments
  • Missile rocket components
  • Pump parts and machine parts
  • Nuclear reactor control rod mechanism
403 SS Panel For Various Component Assembly

SS 403 Sheet Standard Specifications

Specification Thickness Length Width Hardness Finish
ASTM A240 / ASME SA240 0.3mm3mm



2000mm –  6000mm, or as requested. 1000mm -2000mm, or as requested. As per ASME, ASTM, A & NACE MR 175 HR, CR, 2B, 2D, BA, NO(8), SATIN

SS Sheet 403 Hot Working Process


Forging is best done at starting temperatures of 2000°F to 2100°F

It requires more blows or a bigger hammer.

Should be heated consistently to 1095–1205°C depending on the level of deforming;

Then forged and air cooled.


Uniformly heat to 815–900°C for optimal softness,

Then slowly let the furnace cool to yield around 155 BHN.

The 403 alloys can be annealed at 1500 to 1650 °F.


Type 403 can be fully hardened between 1650 and 1800°F through oil quenching

Air or fan cooling can be used to harden light parts.

Alloy 403 will harden when cooled from temperatures above 1500°F to different degrees.


Temper at the right temperature to achieve the necessary mechanical characteristics.

It is tempered in the range of 400°F to 1400°F.

It will reduce the impact characteristics and corrosion resistance.


Type 403 stainless is tough and chips accumulate on tools when it is at its softest.

The panel can be cold drawn or heat-treated to produce better finishes.

Can be machined up to Rc 35;if better mechanical qualities are needed.


Type 403 can be successfully welded.

The parts can be warmed at 180/205°Cto avoid cracking for heavy sections.

Parts should be annealed right away after welding since the alloy air hardens.

TuoLian Stainless Steel Sheet Properties

403 %
Chromium 11.5 – 13.0
Nickel 0.60
Carbon 0.15 max.
Silicon 0.5
Manganese 1.00
Phosphorus 0.04
Sulfur 0.03
Iron Balance
Tensile Strength 70
Yield Strength 30
Elongation 25
Hardness 98
Density at 68 °F 0.276
Thermal Expansion Coefficient at 68 to 212°F

at 68 to 1450°F



Thermal Conductivity at 200°F 9.3
Specific Heat at 32 – 212°F 14.4
Modules of Elasticity In tension (E) 29×10^6

Related Material

Choose the stainless steel grade you need, for any use, Tuolian always gives you the best solution.

One Stop Stainless Steel Supply.

Whether you need stainless steel materials for your business or fabrication projects, TuoLian is your best supplier. You can find all types, grades, and thicknesses based on your needs. Guaranteed that we provide the best quality at a reasonable cost.
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