High Strength Structural Carbon Steel Square Flat Bar

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Overview - Basic Info

Model NO.

M2 D2 D3 A2 4340 410 P20 H13 S1 S7 4140 52100 SUJ2

Technique

Hot Rolled

Application

Structural Steel Bar, Tool Steel Bar, Die Steel Bar

Surface Treatment

Galvanized

Alloy

Non-alloy

Special Use

Mold Steel, Free Cutting Steel, Cold Heading Steel

Product Name

Carbon Steel Bar

Shape

Round

Technology

Hot Rolled Based

Quality

High Quality Inspection

HS Code

7213100000

Production Capacity

1000 Ton/Month

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Product Description

High Strength Structural Carbon Steel Square Flat Bar

Technical Specifications
Product Name	SAE 1045 1020 Hot Rolled Iron Carbon Steel Round Bars Round Steel Bar
Grades	1045 1020 20MnCr5
Surface	Black, Polish, Oiled
Technique	Hot rolled
Delivery Condition	Black Surface, Rough machined or as required
Test	100% Ultrasonic test
Process	EAF + LF + VD + Forged + Heat Treatment
Dimension	Diameter: 16mm - 250mm; Length: 4000-15000mm or cut to length
Application	1. Building, automobile, shipbuilding, petrochemical, machinery, medicine, food, energy, etc. 2. Mould template, mortise pin, column. 3. Structural parts supporting stress alternation (connecting rods, bolts, gears). 4. Blanks and materials for shaft parts.
Inspection	Mill Test Certificate supplied; SGS inspection accepted

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Product Parameters

Category	Grades	Sizes	Standard
Carbon structure steel	Q195, Q215, Q235, Q275	16mm-250mm	GB/T700-2006
Low alloy high strength steel	Q295, Q345, Q390, Q420, Q460	16mm-250mm	GB/T1591-2008
Prime Carbon structure steel	10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, S45C, C45	16mm-250mm	GB/T699-1999
Alloy structure steel	30Mn2, 42Crmo, 20Cr, 40Cr, 20CrMo, 35CrMo, 20CrMnTi, Q345B	16mm-250mm	GB/T3077-1999
Spring Steel	65Mn, 60Si2Mn, 50CrVA	16mm-250mm	GB/T1222-84

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Detailed Photos

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Frequently Asked Questions

Q1: Are you a manufacturer or a trading company?

A: We are both a trading company and a manufacturer with over 10 years of experience in steel product sales. We operate our own production facilities.

Q2: Can I visit your factory?

A: Of course. We warmly welcome you to visit our factory at your convenience.

Q3: Do you have quality control and product warranties?

A: Yes, we have gained GB/T19001:2016 / ISO9001:2015 certifications. We provide a 100% satisfaction guarantee on all items and are a verified supplier.

Q4: Can we get some samples first? Are there any charges?

A: Yes, you can get available samples from our stock. Samples are free, but customers are responsible for the freight cost.

Q5: How about the delivery time?

A: Normally it is 5-7 days if we have stock. For non-stock products, production takes 15-45 days, negotiable based on your order quantity.

Q6: How can I trust your business?

A: We promise honest business with competitive prices and professional service. Your order and payment will be fully guaranteed through our verified processes.