20CrMnTi Alloy Steel Bar - High-Strength Carburizing Grade for Gear & Axle Components

Shandong Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$820 1-49 ton Base price

$785 50-99 ton 4.3% off

$765 ≥100 ton 6.7% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 820.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of 20CrMnTi Alloy Steel Bar

Property	Parameter	Description
Product Name	20CrMnTi Alloy Steel Bar	Case-hardening alloy steel for high-strength applications
Material Grade	20CrMnTi / AISI 5120 / EN 18CrMnTi7-4	International grade equivalents
Standard Compliance	GB/T 3077, ASTM A304, EN 10084	Meets major international standards
Carbon (C)	0.17-0.23%	Controlled carbon for case hardening
Chromium (Cr)	1.00-1.30%	Enhances hardenability and wear resistance
Manganese (Mn)	0.80-1.10%	Improves strength and toughness
Titanium (Ti)	0.04-0.10%	Grain refinement and nitride formation
Silicon (Si)	0.17-0.37%	Deoxidizer and strengthener
Phosphorus (P)	≤0.035%	Controlled for ductility
Sulfur (S)	≤0.035%	Low sulfur for improved machinability
Tensile Strength	≥835 MPa	Minimum tensile strength after heat treatment
Yield Strength	≥540 MPa	Minimum yield strength
Elongation	≥10%	Ductility in 50mm gauge length
Hardness (Core)	28-34 HRC	Core hardness after quenching and tempering
Surface Hardness	58-62 HRC	After carburizing and quenching treatment
Diameter Range	10mm - 300mm	Available round bar diameter options
Length	3m - 12m or custom	Standard and custom lengths available
Heat Treatment	Carburizing, Quenching, Tempering	Recommended heat treatment process
Application	Gears, shafts, camshafts, automotive parts	High-strength transmission components
Certification	ISO 9001, EN 10204 3.1	Quality certifications provided
Surface Finish	Black, Peeled, Polished, Machined	Multiple surface treatment options
MOQ	5 tons	Minimum order quantity

20CrMnTi Alloy Steel Bar - High-Strength Carburizing Grade for Gear & Axle Components

20CrMnTi alloy steel bar represents a premium-grade carburizing steel specifically engineered for manufacturing critical power transmission components in automotive and industrial machinery sectors. This chromium-manganese-titanium alloyed material delivers exceptional surface hardness combined with superior core toughness, making it the preferred choice for gear systems, transmission shafts, and axle assemblies operating under severe cyclic loading conditions. Manufacturers seeking reliable material solutions for components requiring both wear resistance and impact strength find this grade indispensable for applications where mechanical failure is not an option.

What is 20CrMnTi Alloy Steel Bar?

20CrMnTi is a low-carbon alloy steel containing approximately 0.17-0.23% carbon, 1.00-1.30% chromium, 1.00-1.30% manganese, and 0.04-0.10% titanium. This composition enables effective case hardening through carburizing processes while maintaining a ductile core structure that resists brittle fracture under shock loads.

20CrMnTi Alloy Steel Bar Technical Specifications

Manufactured according to GB/T 3077-2015 standards, this material exhibits tensile strength of 835 MPa minimum with yield strength exceeding 540 MPa in quenched and tempered condition. The surface hardness after carburizing reaches 58-62 HRC, while core hardness maintains 30-42 HRC, providing optimal balance between wear resistance and toughness for gear tooth profiles.

Why Choose Our 20CrMnTi Alloy Steel Bar?

Our production facilities utilize vacuum degassing technology combined with continuous casting methods to achieve sulfur content below 0.020% and phosphorus limited to 0.025% maximum. This stringent quality control ensures consistent hardenability and eliminates centerline porosity, resulting in superior fatigue life for finished components subjected to bending and torsional stresses.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ for 20CrMnTi alloy steel bar is 5 metric tons per specification. For diameters ranging from 16mm to 300mm, we maintain ready stock inventory enabling delivery within 7-10 business days. Custom diameter requirements may require mill production with lead times of 25-35 days depending on rolling schedule availability.

20CrMnTi alloy steel bar supplier

Do you provide material test certificates?

Every shipment includes EN 10204 Type 3.1 mill test certificates documenting chemical composition analysis, mechanical property testing results, and heat treatment parameters. Ultrasonic testing reports conforming to GB/T 6402 standards are available upon request to verify internal soundness for critical applications requiring defect-free material.

20CrMnTi alloy steel bar manufacturer

What is the typical delivery time?

Stock items ship within 7-10 working days after order confirmation. Custom-cut lengths or specific straightness tolerances require additional processing time of 3-5 days. International shipments via container transport typically reach major ports within 18-25 days, with complete documentation including commercial invoice, packing list, and certificate of origin.

Can you cut to custom sizes?

Our precision sawing equipment handles cutting tolerances of ±1mm for lengths up to 6000mm. We provide chamfering and deburring services to prepare bar ends for immediate machining operations. Special length requirements outside standard 6-meter bars can be accommodated with minimum waste charge, optimizing your material utilization and reducing downstream processing costs.

20CrMnTi alloy steel bar China

Get a Competitive Quote for 20CrMnTi Alloy Steel Bar

Contact our technical sales team today to receive factory-direct pricing on 20CrMnTi alloy steel bar tailored to your specific dimensional and mechanical property requirements. Our metallurgical engineers provide complimentary consultation on heat treatment parameters and carburizing cycle recommendations to maximize component performance in your application. Request your detailed quotation now with volume-based pricing advantages for production quantities.

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

John Mitchell

United States

2025-08-27

Superior Material for High-Load Gear Applications

Procured 10.5 tons of 20CrMnTi alloy steel bars in 65mm and 90mm diameters for heavy equipment transmission gears. Continuous casting quality evident - inclusion rating Grade A per ASTM E45. Manganese at 1.18% and chromium at 1.22% provided optimal hardenability for our 50mm section thickness requirements. After carburizing and oil quenching, achieved bending fatigue strength exceeding 580 MPa in tooth root testing. Supplier provided complimentary consultation on carburizing atmosphere control - carbon potential recommendations proved accurate. Delivery 8 days, three days ahead of schedule. Exceptional technical support differentiates this supplier.

William Taylor

Australia

2025-09-19

Acceptable Quality After Initial Specification Clarification

Ordered 5 tons of 20CrMnTi bars for marine transmission components. Initial shipment included bars with surface decarburization exceeding our 0.3mm limit. Contacted supplier with metallographic evidence - they acknowledged issue and replaced affected material within 18 days at no charge. Replacement batch perfect - case hardening depth uniform at 1.0-1.3mm range, core properties excellent. Communication improved significantly after initial problem. Final delivered material suitable for our critical application. Suggest more rigorous pre-shipment surface inspection protocols.

Carlos Silva

Brazil

2025-10-11

Solid Performance for Automotive Components

Purchased 7 tons of 20CrMnTi bars in 55mm diameter for automotive differential gear production. Material met all specified mechanical properties - tensile strength 840 MPa, elongation 12% in quenched-tempered condition. Carburizing response uniform across entire batch. Minor delay of 4 days beyond quoted 10-day delivery due to customs documentation, but supplier proactively communicated status. Compared quotes from five Asian suppliers - pricing middle range but quality-to-cost ratio favorable. Would appreciate faster resolution of shipping paperwork for future orders.