304D Stainless Steel Square Bar

Sunning Steel’s 304D stainless steel square bar is an enhanced version of 304 stainless steel, offering improved mechanical strength, corrosion resistance, and machinability. With its high nickel content and low carbon composition, 304D stainless steel provides excellent weldability, durability, and resistance to oxidation, making it an ideal choice for a wide range of industries, including construction, manufacturing, food processing, chemical processing, and marine applications.

Product Parameters

Specification	Details
Material Grade	304D Stainless Steel
Standard Compliance	ASTM A276, ASTM A484, ASME SA276, DIN 1.4301, JIS G4303
Size Range	6mm × 6mm to 100mm × 100mm
Length	1000mm – 6000mm (Customizable)
Surface Finish	Black, Bright, Polished, Peeled, Turned, Ground
Scope of Application	Construction, Food Processing, Chemical Processing, Marine, Medical Equipment, Aerospace, Automotive, Industrial Machinery

Chemical Composition

Element	Composition (%)
Chromium (Cr)	18.0 - 20.0
Nickel (Ni)	8.0 - 10.5
Carbon (C)	≤ 0.03
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Nitrogen (N)	≤ 0.10
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	≥ 515 MPa
Yield Strength (0.2% Offset)	≥ 205 MPa
Elongation (%)	≥ 40
Hardness (HBW)	≤ 201 HB
Modulus of Elasticity	193 GPa

Why Choose Sunning Steel for 304D Stainless Steel Square Bars?

✅ High-Quality Materials – Manufactured to ASTM, ASME, DIN, and JIS standards.
✅ Custom Processing Available – Cutting, polishing, and surface finishing options.
✅ Competitive Pricing – Best value for premium stainless steel.
✅ Global Supply Network – Fast and reliable worldwide shipping.
✅ Dedicated Customer Support – Expert assistance for technical and purchasing inquiries.