1045 Cold Rolled Steel Plate

1045 is a medium carbon steel is used when greater strength and hardness is desired than in the “as rolled” condition. Extreme size accuracy, straightness and concentricity combine to minimize wear in high speed applications. Commonly used in gears, shafts, axles, bolts, studs and machine parts.


Carbon steels are a category of steels with 0.12 to 2% carbon content. AISI 1045 is a medium carbon steel designed to be able to function in areas requiring greater strength and hardness. This steel possesses excellent size accuracy, concentricity, and straightness which together enable to minimize wear in high speed applications. AISI 1045 can be formed into turned, ground and polished bars that can be machined unsymmetrically with limited distortion.

The following sections will discuss in detail about AISI 1045 carbon steel.


Product Parameters

Product Name1045 Cold Rolled Steel Plate
Production ProcessHot Rolling, Cold Rolling
Material StandardsAISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Length1m-12m, or Customized Size
Delivery ConditionsRolling, Annealing, Quenching, Tempered or Standard
Surface ProcessOrdinary, Wire Drawing, Laminated Film

Chemical Composition

ElementContent (%)
Carbon, C0.43-0.50
Manganese, Mn0.60-0.90
Sulfur, S0.05 (max)
Phosphorous, P0.04 (max)
Iron, FeBalance

Mechanical Properties

Tensile strength585 MPa84800 psi
Yield strength450 MPa65300 psi
Modulus of elasticity200 GPa29000 ksi
Shear modulus (typical for steel)80 GPa11600 ksi
Poisson’s ratio0.290.29
Elongation at break (in 50 mm)12 %12 %
Hardness, Brinell163163
Hardness, Knoop (converted from Brinell hardness)184184
Hardness, Rockwell B (converted from Brinell hardness)8484
Hardness, Vickers (converted from Brinell hardness)170170

Scope of Application

The following are the application areas of AISI 1045 carbon steel:

● Bolts
● Studs
● Gears
● Axles
● Shafts
● Machine parts.



We have complete testing equipment and strong technical force. The company has advanced production equipment, equipped with key equipment such as pressing machines, large heat treatment furnaces, beveling machines, sawing machines, large sandblasting machines, and various testing instruments.


Our products are processed by professional technicians, and each product is carefully screened before shipment. We′re pleased to get your Inquiry and we will come back to as soon as possible.


We provide products with competitive prices based on good quality and schedule each shipment on time. We′re pleased to get your Inquiry and we will come back to as soon as possible.


Our main manufactures are stainless steel, galvanized steel, carbon steel and etc. That apply to engineering, coal mine, textile, electric power, boiler, machinery, military industry and other fields.

Marine Exploration
Electric Field
Boiler Field
Textile Field
The issues you care about

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Yes, we could make custom products according to your specific requirements.

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers’ requirement.

30% T/T in advance, the balance 70% before delivery. We will show you the photos of products and package before you pay the balance.


For stocks, we could transport the goods to loading port within 7 – 15 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Under normal circumstances, we ship from Shenzhen, Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.

In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.


EN10025-2 S235/S275/S355 Carbon Steel Plate

A572 Grade 50 Hot Rolled Steel Plate

A537 Pressure Vessel Steel Plate

JIS G3101 SS400/SS490/SS540 Cold Rolled Steel Plate

A588 Alloy Structural Steel Plate

DIN 17155 Pressure Vessel Steel Plate


Delivery within agreed time


Shipping worldwide


Lifetime service