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

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

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

MOQ： 50 kg
Price： US $2.4-3.91 / kg
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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
Certification	AISI

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Product Specification


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	Certification	AISI
High Light	Grade 321 Stainless Steel Round Bar ，Hot Rolled SS Round Bar ，Black Surface Steel Round Bar

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

Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B) max	Brinell (HB) max
321	515	205	40	95	217
321H	515	205	40	95	217
347	515	205	40	92	201

Typical Applications

Aircraft exhaust manifolds
Expansion joints
Bellows
Furnace parts
Heating element tubing
Heat exchangers
Woven or welded screens for high-temperature mineral processing
Spiral welded tube for burner pipes and flues

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Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...

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