SHANZHONG IRON AND STEEL (SHANDONG) CO..LTD.

309/309S Stainless Steel Bar

309 and 309S are austenitic chromium-nickel stainless steels that are typically used for higher temperature applications. Due to its high chromium and nickel content, 309 and 309S alloys have a high degree of corrosion resistance, excellent oxidation resistance and excellent heat resistance, while providing good strength at room temperature and high temperature. The only significant difference between 309 and 309S is the carbon content. The 309S alloy has less carbon, which minimizes carbide precipitation and improves weldability.

Classification :

Stainless Steel Bar

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309/309S Stainless Steel Bar Description

Product Parameters

Product Name		309/309S Stainless Steel Bar
Type		Steel Bar
Outer Diameter	Round Bar	4mm-500mm
	Hexagon Bar	18mm-57mm (11/16″ to 2-3/4″)
	Square Bar	18mm-47mm (11/16″ to 1-3/4″)
	Flat Steel	1/2 "to 10", Thickness: 2mm-150mm, Can provide customized
Length		1-6 meters, Length can be customized
Standard		ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface		Black, Bright Polished, Rough Turning, Mattness Surface Treatment, No. 4. BA, etc.
Scope of Application		Stainless steel bars are used in a variety of industries such as shipbuilding, Defense, Automotive, Textiles, Paper and pulp, Manufacturing, Cement, Heavy earthmoving equipment and construction, etc.

Chemical Composition

C	Si	Mn	Cr	Ni	S	P
≤ 0.08	≤ 0.75	≤ 2.0	22.0～24.0	12.0～15.0	≤ 0.03	≤ 0.045

Mechanical Properties

Tensile Strength Kb (MPa)	Yield Strength σ0.2 (MPa)	Elongation D5 (%)	Hardness
≥515	≥205	≥35	≤ 217HB

Physical Performance

Density(g/cm³)	Modulus of Elasticity(Gpa)	Coefficient of Thermal Expansion(10^-6/°C)	Coefficient of Thermal Conductivity(W/m*K)	Resistivity(ΜΩ. cm)
7.98	200	14.9	15.6	78

Packing and delivery

It relies on its product, price, service and location advantages to establish long-term cooperation with many clients in North America, South America, Europe, Southeast Asia, the Middle East and Africa, and has established a business foundation in Peru, the Philippines, Russia and elsewhere.