Name: Stainless steel forged rings
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Stainless steel forged rings

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■ Product Parameters

Item	Description
Core Materials	Austenitic: 304, 304L, 316, 316L, 321Martensitic: 410, 420, 430Duplex: 2205, 2507 (upon request)
Weight Range (per piece)	0.1 kg – 150 kg
Max Outer Diameter (ring type)	800 mm
Forging Tolerance	Per GB/T 12362 or customer drawing; local dimensions within ±0.5 mm available
Surface Condition	Black forging / Rough turned / Finish turned / Polished
Main Product Forms	Flanges, pipe fittings, gear rings, ring-shaped parts, cylindrical parts, custom brackets, valve bodies, pump shafts, automotive control arms, etc.
Typical Applications	Automotive components, chemical valves, food machinery, marine engineering, ship outfitting, medical instruments, pump & valve industry
Applicable Standards	GB, ASTM, AISI, DIN, JIS, ISO, or custom according to drawings
Key Advantages	1. Dense forged structure, no porosity or shrinkage 2. Excellent corrosion resistance – retains Cr/Ni content 3. Optimized grain flow – high impact & fatigue life 4. Near-net shape – reduces machining cost & material waste 5. Traceable material – spectro report provided per batch

Common Materials & Typical Hardness After Heat Treatment.

Grade	Type	Key Characteristics	Typical Applications
304 / 304L	Austenitic	Good general performance, corrosion resistant, weldable	Food equipment, flanges, auto parts, architecture
316 / 316L	Austenitic (Mo)	Resistant to chloride & seawater, acid resistant	Chemical valves, offshore platforms, medical devices, marine parts
321	Austenitic (Ti)	Resistant to intergranular corrosion, high-temperature oxidation	Boiler parts, exhaust systems, heat exchangers
410	Martensitic	Heat-treatable, good wear resistance	Pump shafts, blades, fasteners, turbine parts
420	Martensitic	Higher hardness, excellent wear resistance	Cutlery, valve sealing faces, bearing cages
430	Ferritic	Good heat resistance, oxidation resistance	Exhaust pipes, appliance parts, kitchen equipment
2205	Duplex stainless	High strength, resistant to stress corrosion	Chemical pressure vessels, seawater systems, bridge structures