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SAE 1045 Cold Drawn Carbon Steel Round Bar with 2-100 mm Diameter and Polished Surface

Minimum Order Quantity	1 Ton
Price	US $530-950 / Ton

Product Details

Diameter Range	2-100 Mm	Model Number	1045 / S45C / S45K
Surface Treatment	Polished	Alloy Type	Non-alloy
Carbon Content	0.42-0.5%	Silicon Content	0.17-0.37%
Manganese Content	0.5-0.8%	Chromium Content	≤0.25%
Phosphorus Content	≤0.035%	Sulfur Content	≤0.035%
Nickel Content	≤0.3%	Copper Content	≤0.25%
Tensile Strength	600 N/mm2 Min	Yield Strength	355 N/mm2 Min
Elongation	16% Min
Highlight	Cold Drawn Steel Round Bar , 2-100 mm Diameter Carbon Steel Round Bar , Polished Surface 1045 Steel Bar

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Product Description

SAE 1045 / S45C / S45K Cold Drawn Bar

Carbon steel round bars available in diameters from 2-100 mm, manufactured through cold drawing process for enhanced dimensional accuracy and surface finish.

Product Overview

AISI 1045 steel round bar is a high carbon steel under American standards, classified as a quenching and tempering steel with excellent strength properties. Available in hot rolled round and square bars, cold-drawn bars, and forged bars, this material is suitable for various industrial applications requiring high strength and durability.

Applications

Moving parts requiring high strength: air compressor plungers, pump components
Rolled shafts, connecting rods, endless screws, gear racks
Dowels for heavy machinery
Wear-resistant parts after high-frequency quenching: crank axles, machine tool shafts, transmission shafts

Material Properties

1045 is a commonly used low carbon steel alloy offering good strength, ductility, and excellent machinability. Typically supplied in quenching and tempering or normalizing delivery states.

Chemical Composition

Grade	C	Si	Mn	Cr	P	S	Ni	Cu
AISI 1045	0.42-0.5	0.17-0.37	0.5-0.8	≤0.25	≤0.035	≤0.035	≤0.3	≤0.25

Mechanical Properties

Grade	Delivery State	T.S. (N/mm²) Min	Y.S. (N/mm²) Min	A,% Min	Z,% Min	Hardness, HB max
AISI 1045	Hot rolled, forged, or heat treatment	600	355	16	40	229

Available Steel Grades

Steel Series	Representative Steel Types
Carbon Steel series	AISI 1020, 1045, A36, S355JR, S355JO
Petroleum machinery series	AISI 4150, AISI 4140, AISI 4130, 30CrMo, 4145H
Tool mold series	1.2714, 5CrMnMo, 5CrNiMoV, 1.2738, 1.2311, 1.2312
Bearing series	52100, GCr15, SUJ2
Marine series	4140, 42CrMo, SCM440, 709M40

Forged Steel Dimensions

Round Bar: Φ85mm ~ 1200mm
Square Bar: 150×150 - 800×800mm
Flat Blocks: (150mm-800mm) × (200mm-800mm)
Custom Shafts and Rings: According to customer drawings

Frequently Asked Questions

How long is your delivery time?

Generally 5-10 days for in-stock items, or 15-20 days for non-stock items depending on quantity.

Do you provide samples? Is it free or extra?

Yes, we offer samples free of charge, but customers pay the freight cost.

What is your MOQ?

Minimum order quantity is typically 5 tons. Smaller quantities may have slightly higher pricing.

How to buy your ideal products?

Provide your drawing for production, or we can design according to your requirements if no clear plan exists.

How to pay?

TT and L/C accepted. Preferred method: 30% deposit before production, 70% balance before loading by TT.

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SAE 1045 Cold Drawn Carbon Steel Round Bar with 2-100 mm Diameter and Polished Surface

Cold Drawn Steel Round Bar

2-100 mm Diameter Carbon Steel Round Bar

Polished Surface 1045 Steel Bar