High Strength Structural Carbon Steel Square Flat Bar

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Basic Information

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

Transport Package

Standard Export Sea-Worthy Packaging, Wooden Case

Specification

Customized

HS Code

7213100000

Production Capacity

1000 Ton/Month

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Product Description

High Strength Structural Carbon Steel Square Flat Bar

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, energy, etc. 2) Mould template, mortise pin, column. 3) Structural parts supporting stress alternation: connecting rods, bolts, wheel gear. 4) Shaft parts blanks; die welding material model CMC-E45.
Inspection	Mill Test Certificate supplied with shipment; SGS inspection accepted.
Package	Standard export seaworthy package or as required.

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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 structure steel	Q295, Q345, Q390, Q420, Q460	16mm-250mm	GB/T1591-2008
Prime Carbon structure steel	10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45, S45C, C45	16mm-250mm	GB/T699-1999
Alloy structure steel	30Mn2, 40Mn2, 27SiMn, 42Crmo, 20Cr, 40Cr, 20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi, 20MnVB, 20MnTiB, 45MnV, 20CrNiMo, Q345B, 35MnBM, 40MnB, 36Mn2V	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 the sale of steel products. We ensure professional sourcing and manufacturing capabilities to meet your specific needs.

Q2: Can I visit your facility?

A: Of course. We warmly welcome you to visit our factory to inspect our production lines and quality management systems.

Q3: Do you have quality control and product warranties?

A: Yes, we have gained certification of GB/T19001:2016 / ISO9001:2015. We are also a verified supplier by SGS. We offer a 100% satisfaction guarantee on all items.

Q4: How can I trust your business?

A: Honest business with competitive prices and professional service is our promise to all customers. Your orders and payments are well-secured through our established reputation.

Q5: Can we obtain samples before placing a full order?

A: Yes, you can get available samples from our stock. The samples are free, but customers are required to cover the freight costs.

Q6: What is the typical delivery time?

A: Normally, it takes 5-7 days if the products are in stock. For non-stock items, production takes 15-45 days depending on the order quantity and specifications.