AISI 1045 / SAE 1045 Steel Square Bar / En8 C45 S45c Hot Rolled Solid Square Flat Rectangle Special Steel Bar

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Product Description

Basic Specifications

Model NO.
EN8 C45 S45c 1045
Sizes
20X20-150X150
Length
2-6m or as Required
MOQ
3 tons
Main Grade
Ss400 A36 1020 1045 4140 40cr
Material
Carbon Steel C45
Type
Square Steel
Standard
GB, ASTM, DIN, JIS, AISI, BS
Steel Type
Carbon Structural Steel
Forming
Hot-Rolled Steel
Specification
5*5mm-80*80mm
Production
3000 tons/Month

Product Description

SAE 1045 Steel Square Bar / C45 S45c Hot Rolled Solid Square Steel Bar

Hot rolled square bars are produced by hot rolling continuous casting billets. Usually, they have a square cross-section with sharp and round edges and are intended either to be further machined or cold drawn.

1. Hot rolled steel square bar Sizes:

  • Side sizes: 10X10 to 150X150 MM
  • Length: 1-8 Meters or as required
  • R corner: Sharp or round corner as per requirements
  • Straightness: max 3mm/m
SAE 1045 Steel Square Bar
Hot Rolled Solid Square Bar

2. Application of Hot Rolled Steel Square Bar:

  • Widely used in building, automobile, shipbuilding, petrochemical, and machinery.
  • Medicine, food, electric power, energy, space, and decoration industries.
  • Ideal for mould templates, mortise pins, and columns.
  • Structural parts supporting stress alternation: connecting rods, bolts, wheel gears, and shaft parts.

3. Packing Details:

  • Surface painted with oil to protect against rust.
  • Bundle packing secured by Iron Strips.
  • Bundle weight: 2mt to 3mt.
  • Identification tags attached to each bundle.

Technical Data

4. Equivalent Grade and Chemical Composition (SAE 1045, S45C)

Standard Grade C Si Mn P S
GB/T699 45 0.42-0.5 0.17-0.37 0.5-0.8 0.035 0.035
JIS G4051 S45C 0.42-0.48 0.15-0.35 0.6-0.9 0.03 0.035
ASTM A29 1045 0.43-0.5 0.15-0.35 0.6-0.9 0.04 0.05
EN 10083-2 C45E/1.1191 0.43-0.5 0.4 0.5-0.8 0.03 0.035

5. Mechanical Properties

Property Value (min)
Tensile Strength (Mpa) 600
Yield Strength (Mpa) 355
Elongation (%) 16
Shrinkage (%) 40
Akv (J) 39

Trade & Logistics

  • Payment: T/T (30% deposit, 70% against B/L) or 100% Irrevocable L/C at sight.
  • MOQ: 3 Tons.
  • Delivery: 7-30 days based on order details.
  • Trade Terms: FOB, CFR, CIF, EXW.
  • Marking: Steel material, Heat No., pieces, weight, and date.
Steel Bar Marking
Steel Stock

Frequently Asked Questions

Q1: What are the primary uses for SAE 1045 square steel bars?
A1: These bars are extensively used in structural applications, automotive parts, machinery, and specifically for components like bolts, connecting rods, and gears due to their excellent mechanical properties.
Q2: What is the range of sizes available for your hot rolled square bars?
A2: We offer a wide range of side sizes from 10x10mm up to 150x150mm, with lengths typically ranging from 1 to 8 meters or customized to your requirements.
Q3: How do you ensure the steel bars do not rust during transit?
A3: We apply a protective layer of anti-rust oil on the surface of the steel bars and secure them in bundles with iron strips to ensure they arrive in good condition.
Q4: What is the minimum order quantity (MOQ)?
A4: Our standard minimum order quantity for square steel bars is 3 tons.
Q5: What are the typical delivery timelines for an order?
A5: Delivery usually takes between 7 to 30 days, depending on the specific order details, sizes requested, and current production capacity.
Q6: Which international standards do your products comply with?
A6: Our square steel bars comply with several major international standards, including GB (China), ASTM (USA), DIN (Germany), JIS (Japan), and BS (UK).

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