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JIS SCM220 20CrNiMoA Quenched and Tempered Alloy Steel Round Bar with Polished Surface and High Hardenability

Cantidad de orden mínima	1 tonelada
Precio	US $850-1,250 / Ton

Datos del producto

Modelo NO.	SCM220 20crnimoa	Tratamiento superficial	Pulido
Tipo de aleación	Aleación	Rango de diámetro	10-350m m
Capacidad de producción	500TONELADAS	Temperatura de enfriamiento	850°C
Temperatura de templado	200 ° C	Resistencia a la tracción	≥980 MPa
Fuerza de producción	≥ 785 Mpa	Alargamiento	el ≥9%
Área de reducción	≥40%	Energía de impacto	≥47J
Contenido de carbono	0,17-0,23%	contenido del cromo	00,4-0,7%
Contenido de molibdeno	0,20-0,30%
Resaltar	Quenched and Tempered Steel Round Bar , Polished Surface Alloy Steel Bar , High Hardenability Steel Rod

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Descripción de producto

JIS SCM220 20CrNiMoA Alloy Steel Round Bar

Quenched and tempered steel bar with diameters ranging from 10-350mm, ideal for demanding industrial applications.

Product Overview

20CrNiMoA SAE8620H steel round rod is a hot rolled alloy bar designed for chemical and mechanical applications. This low carbon nickel chromium molybdenum alloy offers excellent carburized properties, formability, and weldability, making it one of the most widely used carburizing alloys in industry.

Key Features

Excellent machinability performance
Superior cold strain plasticity
Good weldability characteristics
High hardenability without post-tempering fragility

International Standards Equivalents

Chinese	American	German	Japanese
GB 20CrNiMo	SAE 8620	DIN 1.6523	JIS SCM220

Chemical Composition

Element	Content (%)
Carbon (C)	0.17-0.23
Silicon (Si)	0.17-0.37
Manganese (Mn)	0.6-0.95
Phosphorus (P)	≤0.035
Sulfur (S)	≤0.035
Chromium (Cr)	0.4-0.7
Molybdenum (Mo)	0.20-0.30
Copper (Cu)	≤0.30

Mechanical Properties

Property	Value
Quenching Temperature	850°C (oil cooled)
Tempering	200°C (air cooled)
Tensile Strength (σb)	≥980 MPa (100 kgf/mm²)
Yield Strength (σs)	≥785 MPa (80 kgf/mm²)
Elongation (δ5)	≥9%
Reduction of Area (ψ)	≥40%
Impact Energy (Akv)	≥47 J

Typical Applications

Widely used in transmission systems, tractor motors, and small to medium automotive components. Serves as an alternative to 12CrNi3 for high-class carburization and cyanide carburizing parts including oil drilling equipment, mining claws, and cones. Commonly specified for carburized gears, pinions, shafts, bearings, piston rings, ring gears, and crankshafts.

Available Stock Sizes

Round bar diameters: 12-380mm. Available in various conditions including pre-hardened, hot rolled, annealed, quenched and tempered, with surface conditions ranging from black, pre-machined, grinding, to polished finishes.

Why Choose Our Steel Products

Quality Assurance

We source materials exclusively from government-owned steel mills to ensure consistent quality and reliability in every product we supply.

Reliable Delivery

We prioritize timely delivery for all business transactions, ensuring your materials arrive when you need them, whether raw or finished with machining or heat treatment.

Quality Commitment

Our ISO 9001 certified quality management system undergoes regular audits and recertification to maintain the highest standards and meet customer demands.

Comprehensive Services

Quality special steel for all industrial applications
Orders of any size or length with fast shipping
Unique inventory of specialty steel products
Value-added services including metal cutting, sizing, machining, and heat treatment
Sawing services for small or large quantities
Excellent customer service support

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