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Grade 321 Stainless Steel Round Bar Hot Rolled Forged with Black Surface

Certification	AISI
Minimum Order Quantity	50 kg
Price	US $2.4-3.91 / kg

Product Details

Shape	Round	Technique	Cold Rolled
Surface Treatment	Bright	Diameter	8 - 300mm
Length	6m/pcs	Carbon Content	0.08 Max
Manganese Content	2.00 Max	Silicon Content	0.75 Max
Phosphorus Content	0.045 Max	Sulfur Content	0.030 Max
Chromium Content	17.0 - 19.0	Nickel Content	9.0 - 12.0
Tensile Strength	515 MPa Min	Yield Strength	205 MPa Min
Elongation	40% Min
Highlight	Grade 321 Stainless Steel Round Bar , Hot Rolled SS Round Bar , Black Surface Steel Round Bar

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Product Description

Grade 321 Stainless Steel Round Bar - Hot Rolled Forged Black Surface

Product Specifications

Product	Stainless Steel Round Bar
Grade	321 / 1.4541 / UNS S32100
Standard	ASTM A276/276M
Diameter	8 - 300mm
Length	6m/pcs or custom cutting available
Surface	Black, Bright
Additional Grades	304, 310S, 316L, 317L, 321, 410, 420, 431, 440A/B/C, 2205, 2507, 630, 631, 904L, etc.
Services	Cutting, Polishing, Heat Treatment

Stainless Steel Bar Product Range

Product Name	Size Range	Main Grades
Stainless Steel Round Bar (Hot Rolled Black Surface)	8 - 300mm	304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 431, 440A/B/C, 2205, 2507, 904L, 254SMO, 17-4PH, 17-7PH, etc.
Stainless Steel Round Bar (Bright Polished)	3 - 50mm	201, 304, 316L, 310S, 2205, 630, etc.
Stainless Steel Square Bar	4×4 - 50×50mm	201, 304, 316L, 310S, 410, 420, etc.
Stainless Steel Hexagon Bar	S4 - S70	201, 304, 316L, 310S, 410, 420, etc.
Stainless Steel Flat Bar	10×3 - 100×40mm	304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 431, 440A/B/C, 2205, 2507, 904L, 254SMO, 17-4PH, 17-7PH, etc.
Stainless Steel Angle Bar	30×30 - 200×200mm	201, 304, 316L, 310S, 2205, etc.
Stainless Steel Channel Bar	50×25 - 200×100mm	201, 304, 316L, 310S, 2205, etc.

About Grade 321 Stainless Steel

Alloy 321 (UNS S32100) is a titanium-stabilized stainless steel that provides excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range of 800 to 1500°F (427 to 816°C). The addition of titanium stabilizes the alloy against chromium carbide formation.

Grade 321 stainless steel offers superior mechanical properties for high-temperature applications, with higher creep and stress rupture properties than Alloy 304 and 304L. It maintains excellent resistance to oxidation up to 1500°F (816°C) and possesses good low-temperature toughness.

Alloy 321H (UNS S32109) is the higher carbon (0.04-0.10) version developed for enhanced creep resistance and higher strength at temperatures above 1000°F (537°C). This alloy cannot be hardened by heat treatment, only by cold working, and can be easily welded and processed using standard shop fabrication practices.

Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Ni	N	Other
321	0.08 max	2.00 max	0.75 max	0.045 max	0.030 max	17.0-19.0	9.0-12.0	0.10 max	Ti=5(C+N) min, 0.70 max
321H	0.04-0.10	2.00 max	0.75 max	0.045 max	0.030 max	17.0-19.0	9.0-12.0	-	Ti=4(C+N) min, 0.70 max
347	0.08 max	2.00 max	0.75 max	0.045 max	0.030 max	17.0-19.0	9.0-13.0	-	Nb=10(C+N) min, 1.0 max