35CrMo Alloy Steel Bar - High-Strength Quenched & Tempered Round Bar

Shandong Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$730 1-49 ton Base price

$700 50-99 ton 4.1% off

$680 ≥100 ton 6.8% 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$ 730.00

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 35CrMo Alloy Steel Bar

Property	Parameter	Description
Product Name	35CrMo Alloy Steel Bar	Chromium-molybdenum alloy structural steel
Material Grade	35CrMo / AISI 4135 / EN 1.7220 / JIS SCM435	International grade equivalents
Standard Compliance	GB/T 3077, ASTM A29, EN 10083-3, JIS G4105	Meets major international standards
Carbon (C)	0.32-0.40%	Carbon content for strength and hardenability
Chromium (Cr)	0.80-1.10%	Enhances hardenability and wear resistance
Molybdenum (Mo)	0.15-0.25%	Improves toughness and temper resistance
Manganese (Mn)	0.40-0.70%	Improves strength and hardenability
Silicon (Si)	0.17-0.37%	Deoxidizer and strengthening element
Phosphorus (P)	≤0.035%	Controlled for ductility and toughness
Sulfur (S)	≤0.035%	Low sulfur for improved mechanical properties
Tensile Strength	≥985 MPa (after quenching and tempering)	Minimum tensile strength per GB/T 3077
Yield Strength	≥835 MPa (after quenching and tempering)	Minimum yield strength
Elongation	≥9%	Ductility in 50mm gauge length
Hardness	217-269 HBW (annealed)	Brinell hardness range
Diameter Range	10mm - 350mm	Available round bar diameter options
Length	3m - 12m or custom	Standard and custom lengths available
Heat Treatment	Quenching and Tempering	Recommended heat treatment for optimal properties
Application	Machinery parts, gears, shafts, fasteners	High-strength structural components
Certification	EN 10204 3.1, ISO 9001, Mill Test Certificate	Quality certifications provided
MOQ	5 tons	Minimum order quantity

35CrMo Alloy Steel Bar - High-Strength Quenched & Tempered Round Bar

35CrMo alloy steel bar represents a premium-grade chromium-molybdenum engineering material specifically designed for applications demanding exceptional mechanical strength and toughness. This quenched and tempered round bar finds extensive application in heavy machinery, automotive components, and oil extraction equipment where superior tensile properties and fatigue resistance are critical. Manufactured to stringent international standards including GB/T 3077 and DIN 17200, our 35CrMo steel bars serve manufacturers requiring reliable performance in high-stress environments ranging from crankshafts to drill collars.

What is 35CrMo Alloy Steel Bar?

35CrMo alloy steel bar is a low-alloy structural steel containing approximately 0.32-0.40% carbon, 0.80-1.10% chromium, and 0.15-0.25% molybdenum. The combination of chromium and molybdenum provides enhanced hardenability and improved mechanical properties after heat treatment, making it the preferred choice for components subjected to cyclic loading and impact stresses.

35CrMo Alloy Steel Bar Technical Specifications

Our 35CrMo round bars comply with GB/T 3077-2015 standards with tensile strength ranging from 985 MPa to 1180 MPa in quenched and tempered condition. The material exhibits a yield strength minimum of 835 MPa and elongation of 12% minimum. Chemical composition is precisely controlled with carbon content between 0.32-0.40%, manganese 0.40-0.70%, silicon 0.17-0.37%, chromium 0.80-1.10%, and molybdenum 0.15-0.25% per mass fraction requirements.

Why Choose Our 35CrMo Steel Bars

We supply mill-direct 35CrMo alloy steel bars with comprehensive material test certificates including chemical analysis and mechanical property reports. Our manufacturing facility maintains ISO 9001:2015 certification and utilizes advanced electric arc furnace technology followed by vacuum degassing treatment to ensure exceptional purity levels with sulfur and phosphorus content limited to 0.035% maximum each. Available in diameters from 16mm to 300mm with length options up to 12 meters, our inventory supports both standard stock sizes and custom cutting services.

35CrMo alloy steel bar supplier

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard minimum order quantity for 35CrMo alloy steel bars is 5 metric tons per specification. For stock diameter sizes between 40mm-150mm, we can accommodate smaller trial orders starting from 1 metric ton with adjusted pricing. Mixed container loading is available for customers requiring multiple diameter ranges.

35CrMo alloy steel bar manufacturer

Do you provide material test certificates?

Yes, we provide comprehensive material test certificates with every shipment including EN 10204 3.1 mill test certificates. Documentation includes chemical composition analysis, tensile testing results, impact toughness values at specified temperatures, and hardness measurements. Third-party inspection services from SGS, BV, or TUV can be arranged upon request.

What is the typical delivery time?

For standard stock sizes in quenched and tempered condition, delivery time is typically 15-20 working days from order confirmation. Custom diameter requirements or special heat treatment specifications may extend lead time to 25-35 working days depending on production scheduling. Express processing is available for urgent requirements with expedited manufacturing fees.

Can you cut to custom sizes?

We offer precision cutting services with tolerance of ±5mm for length specifications. Our facility is equipped with automated sawing equipment capable of processing bars up to 300mm diameter. Custom length cutting, chamfering, and center drilling services are available. For applications requiring tight dimensional tolerances, we provide turned and polished bars with diameter tolerance of h9 or better.

Get a Competitive Quote for 35CrMo Alloy Steel Bar

Contact our technical sales team today to receive factory-competitive pricing for 35CrMo alloy steel bars tailored to your project specifications. We provide detailed quotations including material cost, processing fees, and logistics solutions within 24 hours. Our engineering support team can assist with material selection, heat treatment recommendations, and mechanical property optimization for your specific application requirements.

35CrMo alloy steel bar China

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Carlos Mendes

Brazil

2025-09-12

Premium 35CrMo for Mining Equipment Components

Sourced 9 tons of 35CrMo alloy steel bars (90mm and 110mm diameters, 8-meter lengths) for mining crusher shaft applications. Material certificates documented carbon 0.38%, chromium 1.05%, molybdenum 0.22% - optimal composition for our heat treatment process. Ultrasonic testing results showed zero internal defects. Impact toughness at -40°C exceeded 35J, critical for our cold climate operations. Custom center drilling service saved significant machining time. Delivery in 19 days including container consolidation with another product line. Engineering support team provided valuable tempering temperature recommendations for achieving HRC 32-36 hardness range.

Ahmed Al-Rashid

United Arab Emirates

2025-09-29

Acceptable Quality with Delivery Delay Resolved

Ordered 7 tons of 35CrMo bars (75mm diameter) for excavator arm pin manufacturing. Initial delivery was delayed by 8 days due to production scheduling issues, but supplier communicated proactively and offered partial shipment option. Material quality met GB/T 3077 standards with tensile strength 1010 MPa. Two bars had minor surface pitting that required additional machining allowance. Supplier provided compensation for delay and quality concern. Final product performance in field testing has been satisfactory. Would consider ordering again with earlier lead time planning.

Chris Thompson

Canada

2025-10-16

Reliable 35CrMo Bars at Competitive Pricing

Purchased 5 tons of 35CrMo round bars (40mm diameter) for gear shaft production. Compared quotes from four suppliers - this offer provided best value including processing services. Material test certificates showed yield strength at 850 MPa with elongation 13%. Turned and polished finish option delivered h9 tolerance as specified. Packaging was adequate though one bundle had loose strapping upon arrival. Technical documentation comprehensive including heat treatment curves. Good choice for medium-volume production runs where cost efficiency matters.