Easy to Install Progressive Technology Carbon Steel Flat Bar
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Product Highlights
- Customizable Radius: Customized radius of 3mm for optimal rail wheel running.
- Weight Saving Design: Saves 50% weight compared to P rail due to large contact area.
- Easy Installation: Fast assembly with saw-cut ends, no spare parts needed.
- High Strength Material: Made of Q355B/Q345B steel, similar to A572 and ST52.
- Smooth Surface Finish: Straight and smooth surface ensures smooth running effect.
- Fixed Length Supply: Provided in fixed 5.8m lengths without short pieces.
- OEM Service Available: Accepts OEM production for famous crane brands worldwide.
- ISO 9001 Certified: Strict adherence to ISO-9001 procedures for quality assurance.
Product Attributes
- Customization
- Available
- Application
- Industrial Automation Equipment, Medical Equipment, Industrial Automation Equipment, Medical Equipment, Industrial Automation Equipment, Medical Equipment, Steel Workshop, Steel Structure Platform
- Carrying Capacity
- Middle-Level, Middle-Level
- Model NO.
- 120*100
- Certification
- CE, ISO 9001:2000, CE, ISO 9001:2000, CE, ISO 9001:2000
- Corrosion Resistance
- High Corrosion Resistance, High Corrosion Resistance
- Length
- Custom Length, Custom Length
- Material
- Carbon Steel, Carbon Steel
- Profile Type
- Solid Profile, Solid Profile
- Surface Treatment
- Plain, Plain
- Size
- 40*30, 50*30, 60*40, 70*40, 80*60, 100*60, 120*80
- Heat Treatment
- Normalized / Annealed / Quenched+Tempered
- Speciality
- Straight and Smooth Surface
- Customized Radius
- 3mm
- Type
- Flat Steel
- Standard
- GB, ASTM, DIN, JIS, AISI, BS
- Trademark
- Carbon Structural Steel, NANTE
- Forming
- Hot-Rolled Steel
- Connection Form
- Welded Connection
- Member
- Steel Beam
- Type of Steel for Building Structure
- High-Strength Steel
- Residential Wall Structure
- Connector
- After-Sales Service
- Within 24 Hours
- Warranty
- One Year
- Carbon Structural Steel
- Q345cr
- Transport Package
- Bundle
- Specification
- 40*30, 50*30, 50*40, 60*40, 70*40, 80*60, 100*60
- Origin
- China
- HS Code
- 7308900000
- Production Capacity
- 10000000 Pieces Per Year
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Easy to Install Progressive Technology Carbon Steel Flat Bar
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Product Description
Easy to Install Progressive Technology Carbon Steel Flat Bar
General description:
Crane rail is used to withstand the concentrated pressure from the wheels and guide the wheels.There are many different type of rail and flat bar& square bar is one of them.Flat bar & square bar is mainly used as crane rail for bridge cranes, hoist cranes, overhead cranes, gantry cranes and semigantry cranes in commercial buildings, warehouses and structures, etc.it is featured by smooth running effect, easy assemble.
Flat bar & square bar are manufactured using high grade materials and is known for its sturdiness, durability and application specific design.Nante flat bar customize radius of the angle to be 3mm, which is most suitable for rail wheel to run.And the material is Q355B, which is similar to A572, ST52, S355,etc.
Advantages:
- Our flat bar is very straight and the surface of our billet is very smooth.
- We customize radius of the angle to be 3mm, which is most suitable for rail wheel to run.
- The both end side of this flat bar was cut by sawing machine which is very easy for assemble.
- The material is Q355B, which is similar to A572, ST52, S355,etc.
- Fast and easy installation which no need any spare parts.
- Save material weight, compared with P rail, save 50% weight.
- The large contact area with the wheel tread which can effectively increase the allowable wheel pressure.
- Fixed Length in 5.8m, without any short lengths.
- Material: Q345B/Q345Cr
- Size: 40*30,50*30, 60*40, 70*40, 80*60, 100*60, 120*80,40*40,50*50,60*60,70*70,80*80
- Produce process: Hot rolled
- Chemical component (%):C≤0.2,Si≤0.5,Mn≤1.7,P≤0.035,S≤0.035
- Tensile strength(Mpa):407-630
- Yield strength(Mpa):≥335
- Elongation(%):≥20

| Technical Data of Flat bar&Square bar | |||||
| Name | Type | Standard | Weight | Size(mm) | |
| (kg/m) | A | B | |||
| Flat Bar | 40*30 | GB/T1591-2008 | 9.42 | 30 | 40 |
| 50*30 | 11.78 | 30 | 50 | ||
| 60*40 | 18.84 | 40 | 60 | ||
| 70*40 | 21.98 | 40 | 70 | ||
| 80*60 | 37.68 | 60 | 80 | ||
| 100*60 | 47.11 | 60 | 100 | ||
| 120*80 | 75.37 | 80 | 120 | ||
| Square Bar | 40*40 | 12.56 | 40 | 40 | |
| 50*50 | 19.63 | 50 | 50 | ||
| 70*70 | 38.47 | 70 | 70 | ||
| 80*80 | 50.25 | 80 | 80 | ||
Applications:
Flat bar&square bar is widely used in cranes,hoisting machinery,port machinery, railway machinery,cutain wall, engineering machinery, shipbuilding, elevator parts, crane rails and automobile industry.










Q1: Are you Manufacturer or Trading Company,
A1:We are an integrated industrial and trade enterprises. We have our own R&D team, factory and marketing department,
Q2: Which standard of your crane and crane components apply to?
A2: Our Crane can design and manufacture base on FEM, CMAA, ISO EN, GB standard.
Q3: How do you ensure your product quality?
A3: All our processes strictly adhere to ISO-9001 procedures, which include Material Traceability, ISO WPQR and welder certificate, Measuring Device Calibration, NDT for the welding, and full assembling and load testing before delivery.
Q4: How can I make payment?
A: We accept T/T bank transfer, L/C, Paypal.
Q5: How can I assembly the cranes in my factory?
A: We suggest you to recruit a crane service team in local to install the crane base on our Installation Guideline and User manual. If cannot, we can send engineer to your factory to guide you do the installation with extra charge, and the transportation, accommodation, translator shall be covered by your side also.
Q6: What is the warranty period, and how can I claim warranty If my crane have any issue?
A: Our warranty period is 12 months after cargo leave China port. If the crane have any issue, our after-sales team and engineer will help you solve the issue by email or Video conference. If the defect is caused by quality issue, we will ship the spare parts to you by air to help you fixed it as soon as possible.
Q7: Do you accept OEM business:
A: Sure, we do many OEM productions for some famous crane brand and customers around the world.
Q8: What about shipping:
A: We recommend small batch by the way of air or LCL, but large delivery by the way of container or bulk vessel.
Q9: what about delivery time?
A: different capacity crane and components have different estimated delivery time, generally speaking, around 4 weeks to 8 weeks.
Q10: What is your company policy if we want to distribute NANTE product in our market?
A: Firstly, thank you for your interest to promote NANTE brand, we have distributors in 50+ countries, pleaes no hesitate to contact us for the detail discussions, as we have different policies for the different target markets. Surely, you are welcomed to visit our factory and let's talk face to face.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR263015". Items marked "" are certified.
Company Profile
After 30 years rapid development, NANTE has grown into a leading integrated solution provider for crane and crane components in China. Dedicated to the research and development of new lifting and handling technologies, we adopt innovative ideas and design in developing new products and services. Backed up by a wealth of industrial experience on lifting industry,
WE can provide to customer wide range of lifting equipment and components with scientific design, good safety, high performance, efficient operation and low maintenance cost. We are committed to help our clients to reduce investment cost, improve production efficiency, and economize energy consumption.
OUR PRODUCTS:
In order to offer our clients with a complete set of competitive lifting solution. WE delivers a wide range of products include:
1. Lifting Equipments for Construction: Beam Launcher, Gantry Crane, Segment Lifter, Form Traveler, and Bailey Bridge etc.
2. Lifting Equipments for Industry: Overhead Crane, Gantry Crane, Jib Crane, Light Crane System.
3. Crane Components: Electric Hoist & Trolley, End carriage, Conductor Rail, Festoon system, Steel Rail, Flat cable, Pendent control, geared motor, remote control etc.
OUR SERVICES:
WE can provide to customer an integrated solution which includes project consultant, design, manufacturing, transportation, installation, maintenance and technical support. Our one-stop services can not only save our customers time but also minimize their cost.
In compliance with our service concept "Customer First", we provide the following support services to ensure smooth running of customer's lifting and handling equipments: Presale Technical Support, After-sale Maintenance, Spare Parts Support, and Customized Solutions.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- Baojiashan Village, Dongguan Sub-District, Shangyu District, Shaoxing City, Zhejiang Province, Hangzhou, Zhejiang, China
-
Plant Area
- 10965 square meters
-
Number of Employees
- 103
-
Registered Capital
- 20,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: 1-3 months
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 set
-
Supply Chain Partners
- 1300
Our Production Capability & Technical Expertise
-
Main Products
- Overhead Crane, Gantry Crane, Jib Crane, Hoist, Winch, Launching Crane, End Carriage, Conductor Rail, Festoon System, Crane Rail
-
Production Lines
- 4
-
Production Machines
- Milling machine, CNC Machine
-
QA/QC inspectors
- 5 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Finished product checked by packing staff
-
Customization Options
- Customization from Designs
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 7 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2013-09-13
-
Export Year
- 13 Years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, Australia, Domestic
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 11
-
Overseas Agent/Branch
- Yes
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO45001:2018
-
Cooperated with Fortune 500
- Yes
FAQ
- Are you a manufacturer or trading company?
- We are an integrated industrial and trade enterprise with our own R&D team, factory, and marketing department.
- Which standards do your crane components apply to?
- Our cranes can be designed and manufactured based on FEM, CMAA, ISO EN, and GB standards.
- How do you ensure product quality?
- All processes adhere to ISO-9001 procedures, including material traceability, welder certification, NDT, and full load testing before delivery.
- What payment methods do you accept?
- We accept T/T bank transfer, L/C, and PayPal.
- How can I assemble the cranes in my factory?
- We suggest recruiting a local crane service team based on our guidelines. Alternatively, we can send an engineer for guidance at an extra charge, with travel and accommodation covered by the buyer.
- What is the warranty period and how to claim it?
- The warranty is 12 months after cargo leaves China. If there is a quality issue, we ship spare parts by air to help fix it quickly.
- Do you accept OEM business?
- Yes, we accept OEM business and have produced for many famous crane brands and customers worldwide.
- What is the delivery time?
- Delivery time varies by capacity, generally ranging from 4 to 8 weeks.
- What are the shipping options?
- We recommend air or LCL for small batches, and container or bulk vessel for large deliveries.
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Product Groups
- Overhead Crane
- Gantry Crane
- Jib Crane & Davit Crane
- Launch Crane& Bridge Construction Lifting Equip.
- Flexible Light Crane System&Transfer Car
- Electric Wire Rope Hoist
- Electric Winch
- Electric Chain Hoist
- End Carriage/Wheel Block/Bogie/Hoist Trolley
- Conductor Rail
- Festoon system & Crane Cable
- Crane Control Panel & Electric Device
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- Crane Rail
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