Name: 420 Stainless Steel Bar
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420 Stainless Steel Bar

420 martensitic stainless steel bar, also known as cutlery-grade stainless, delivers ultra-high hardness and superior abrasion resistance after full quenching heat treatment. It is widely processed into cutting tools, precision molds, rolling bearings and wear-resistant hardware blanks, ranking as a top popular raw material for global metal fabrication workshops.

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Product Name	420 Stainless Steel Bar
Standard	ASTM A276, UNS S42000, DIN 1.4021, SUS420
Material	420
Technique	Cold drawn, Hot rolled, Cold rolled and Others.
Common Size Specs	Available shapes: Round / Square / Hexagonal solid bar Diameter range: 3mm–300mm Hot-selling sizes: 6mm, 10mm, 18mm, 25mm, 40mm, 60mm Standard length: 3m / 6m, custom fixed-length cutting available
Surface Treatment	Cold drawn bright finish, centerless ground polished, hot rolled pickled matte surface, anti-rust oil sealed export packaging
Available Material Tempers	Annealed: Soft state for machining & blank processing Quenched & Tempered: Max hardness for tools, bearings and wear parts
Origin	China
Price Terms	EXW, FOB, CIF, CRF, CNF or others
Payment Term	TT, LC, Cash, Paypal, DP, DA, Western Union or Others.
Packaging	Bundle, PVC Bag, Nylon Belt, Cable Tie, Standard export seaworthy package or as Request.
Processing Service	Bending, Welding, Decoiling, Punching, Cutting and Others.
Tolerance	±1%
MOQ	5 tons
Exported to	Turkey, India, Vietnam; Germany, Poland; UAE, Saudi Arabia
Core Strengths	Higher carbon martensitic alloy, reach 50–55 HRC post quenching, harder than grade 410 stainless bar Excellent anti-abrasion performance, long service life for cyclic friction mechanical parts Smooth annealed state for easy CNC turning, milling and custom blank shaping Moderate atmospheric rust resistance after polishing, suitable for daily & light industrial hardware Cost-effective tool stainless steel without expensive high-alloy additives
Main Applications	Industrial cutting knives & cutlery, plastic injection molds, rolling bearings, wear-resistant mechanical inserts, precision valve cores, measuring tool blanks, textile machinery needle parts

Send your inquiry now to get best bulk wholesale price about our ss bar stock products. China factory direct supply and large stock, fast delivery and professional team service.

Composition of Stainless Steel

Steel is an alloy of iron and carbon. Stainless steels are steels containing at least 10.5% chromium, less than 1.2% carbon and other alloying elements. Stainless steel’s corrosion resistance and

mechanical properties can be further enhanced by adding other elements, such as nickel, molybdenum, titanium, niobium, manganese, etc.

Grade	C	Si	Mn	P	S	Cr	Ni	Mo	N	Cu
201	≤0.15	≤0.75	5.5~7.5	≤0.060	≤0.03	16.00~18.00	3.5~5.5	-	-	0.08
202	≤0.15	≤1.00	7.5~10.00	≤0.060	≤0.03	17.00~19.00	4.0~6.0	-	≤0.25
301	≤0.15	≤1.00	≤2.00	≤0.045	≤0.03	16.00~18.00	6.00~8.00	-
302	≤0.15	≤1.00	≤2.00	≤0.035	≤0.03	17.00~19.00	8.00~10.00	-
304	≤0.07	≤1.00	≤2.00	≤0.045	≤0.03	18.00~20.00	8.00~10.50	-
304L	≤0.030	≤1.00	≤2.00	≤0.045	≤0.03	18.00~20.00	9.00~13.00	-
310S	≤0.08	≤1.00	≤2.00	≤0.045	≤0.03	24.00~26.00	19.00~22.00	-
316	≤0.08	≤1.00	≤2.00	≤0.045	≤0.03	16.00~18.00	10.00~14.00	2.00~3.00
316L	≤0.03	≤1.00	≤2.00	≤0.045	≤0.03	16.00~18.00	12.00~15.00	2.00~3.00
321	≤0.08	≤1.00	≤2.00	≤0.045	≤0.03	17.00~19.00	9.00~13.00	-
430	≤0.12	≤0.75	≤1.00	≤0.040	≤0.03	16.00~18.00		-
2205	≤0.03	≤1.00	≤2.00	≤0.030	≤0.015	22.00~23.00	4.5~6.5	2.5~3.5
2507	≤0.03	≤0.08	≤1.20	≤0.035	≤0.015	24.00~26.00	6.00~8.00	3.0~5.0
904L	≤0.02	≤1.00	≤2.00	≤0.045	≤0.035	19.00~23.00	23.00~28.00	4.0~5.0		1.0~2.0
INCONEL028	≤0.03	≤1.00	≤2.50	≤0.030	≤0.030	≤28.0	≤34.0	≤4.0		≤1.4
MONEL400	≤0.30	≤0.5	≤2.00	-	≤0.024	-	≥63.0	-		≤34.0
INCONEL800	≤0.10	≤1.00	≤1.50	-	≤0.015	≤23.0	≤35	4.0~5.0	-	≤0.75

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