SAE 1045 C45 S45c Carbon Steel Cold Drawn Hex / Round / Flat Steel Bar

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SAE 1045 C45 S45c Carbon Steel Cold Drawn Hex / Round / Flat Steel Bar

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Product Description

Basic Technical Specifications

Model NO.

SAE 1045 C45 S45c Carbon Steel

Technique

Cold Drawn

Application

Structural/Tool/Die Steel Bar

Alloy

Non-alloy

Special Use

Mold/Free Cutting/Cold Heading

Straightness

Max 1mm/M

MOQ

2 tons Per Size

Packing

Anti-Rust Sea Worthy Packing

Tolerance

H9 H10 H11

Type

Round, Square, Hex, Profile

Origin

China

HS Code

72149900

Capacity

3000 tons/Month

Product Overview

All bars are cleaned by shot blasting before drawing, then pulled through a carbide die, straightened, saw cut to length, oiled, and shipped. Cold drawing results in a product with higher tensile and yield strength, smoother surface finish, and a closer size tolerance.

Processing Flow:

EAF + LF + VD + CONCASTING BILLETS + HOT ROLLED + SHOT BLASTING + (ANNEALING) + COLD DRAWN + OILING + BUNDLING + BOTH ENDS CUTTING + PACKING + MARKING

Manufacturing Capabilities

Shapes	Sizes	Processing Method
Steel Round Bar	5mm to 63.5mm	Cold Drawn
Steel Round Bar	63.5mm - 120mm	Smooth-turned and Polished
Steel Square Bar	55mm to 120120mm	Cold Drawn
Steel Hex Bar	5mm to 120mm	Cold Drawn
Hexagonal Bar	5mm to 120mm (side to side)	Cold Drawn
Straightness	Max 0.8mm/m

Key Advantages

◈Tighter Tolerances: Reduces machining losses by providing precise sections.
◈Superior Finish: Reduces surface machining and improves overall quality.
◈Enhanced Straightness: Facilitates automatic bar feeding in CNC operations.
◈Mechanical Properties: Increased strength reduces the need for additional hardening.
◈Machinability: High tool life and improved productivity through higher feeds and speeds.

Material Grade & Composition

GB	ASTM	JIS	DIN	BS	NF
45#	1045	S45C	C45	IC45 08047	C45

Chemical Composition (SAE 1045):

C	Si	Mn	Cr (≤)	Ni (≤)	Cu (≤)
0.42-0.5	0.17-0.37	0.6-0.9	0.25	0.3	0.25

Mechanical Properties (Cold Drawn/Polished):

Tensile Strength	Min 625 Mpa
Yield Strength	Min 530 Mpa
Elongation	12%
Reduction of Area	35%
Brinell Hardness	179

Quality Control & Logistics

Equipped with a full set of inspection equipment including: UT test machines, Tensile testing machines, Hardness testing machines, Dimensional measuring instruments, Spectrometers, and Metallographic microscopes to ensure material integrity for various industries.

Delivery Time

7 days (Stock) / 30 days (Production)

Payment Terms

TT, LC

Frequently Asked Questions

Q: What are the main advantages of cold drawn steel bars? A: Cold drawing improves size tolerance, surface finish, and mechanical properties like tensile and yield strength, making it ideal for high-precision machining.

Q: What shapes of cold drawn steel are available? A: We offer round, square, hexagonal, and special profiles in various sizes ranging from 5mm up to 120mm.

Q: What is the straightness tolerance for your steel bars? A: Our cold drawn steel bars maintain a maximum straightness tolerance of 0.8mm/m to 1mm/m, ensuring suitability for CNC automatic feeding.

Q: What are the equivalent international grades for SAE 1045? A: Equivalent grades include GB 45#, JIS S45C, DIN C45, and BS IC45.

Q: How do you ensure the quality of the steel? A: We utilize a complete suite of QC equipment, including UT testing, tensile and hardness testing, and metallographic microscopes for every batch.

Q: What is the typical lead time for an order? A: Stock items can be delivered within 7 days, while new production orders typically take up to 30 days.