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GB/T11251 1345 Alloy Structural Steel Plate

GB/T 11251 alloy steel is one of the common hot-rolled alloy structural steel plates. This steel plate is widely used in various applications in bearings/gears of rotating machinery.

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Model:
1345

Product Description

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Product Description

The GB/T 11251 alloy structural steel plate is renowned for its high strength, wear resistance, and hardenability, making it a preferred choice for various applications. With moderate cold deformation plasticity, good cutting performance, and excellent welding properties, this alloy steel offers versatility in manufacturing processes.

During heat treatment, the steel exhibits minimal decrease in toughness, maintaining high toughness even under water cooling conditions. However, it may be prone to overheating sensitivity, white point sensitivity, and temper brittleness. Typically used after quenching and tempering, it can also be applied in positive inflammation or hot rolling scenarios.

Common applications of GB/T 11251 alloy steel include valve bodies, pumps, fittings, wheels, bolts, studs, gears, drive shafts, steel balls, rollers, bushings, and various components in internal combustion engines, electric locomotives, machine tools, tractors, steel rolling equipment, boring machines, railway vehicles, and mining machinery. Trust in the durability and performance of GB/T 11251 alloy structural steel sheet for your industrial needs.

| Product Parameters

Product Name	GB/T11251 1345 Alloy Structural Steel sheet
Production Process	Cold Rolled & Hot Rolled
Material Standards	AISI,ASTM, ASME, DIN,BS, EN, ISO, JIS, GOST, SAE,etc.
Width	100mm-3000mm
Length	1m -2m or Custom Size
Thickness	Hot Rolled:2.75mm-100mm
Thickness	Cold Rolled:0.2mm-3mm
Delivery Conditions	Rolling,Annealing, Quenching,Tempered or Standard
Surface Process	Ordinary, Wire Drawing, Laminated Film

微信图片_20240517140724

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Chemical Composition

Brand	C	Si	Mn	B
45Mn2	0.42~0.49	0.17~0.37	1.40~1.80	-
27SiMn	0.24~0.32	1.10~1.40	1.10~1.40	-
40B	0.37~0.44	0.17~0.37	0.60~0.90	0.0005~0.0035
45B	0.42~0.49	0.17~0.37	0.60~0.90	0.0005~0.0035
50B	0.47~0.55	0.17~0.37	0.60~0.90	0.0005~0.0035

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Mechanical Properties

Brand	Yield Strength MPa min.	Elongationmin.%
45Mn2	600	13
27SiMn	550	18
40B	500	20
45B	550	18
50B	550	16

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Product Description

Physical Performance	Metric	Imperial
Density	7.80 g/cm3	0.282lb/in3

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Scope of Application

GB/T 11251 alloy steel plates are widely used in various applications in bearings/gears of rotating machinery. Typical applications such as valve bodies, pumps and fittings, wheels, bolts, studs, gears, high loads of internal combustion engines. Electric locomotives, machine tools, tractors, steel rolling equipment, boring machines, railway vehicles and mining machinery drive shafts on steel balls, rollers and bushings, etc.

微信图片_20240517140726

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Equivalent Material

China	United States	Germany	Japan	France
45Mn2	1345	46Mn7	SMn3	45M5
27SiMn	-	27MnSi5	-	-
40B	14B35	35B2	-	-
45B	50B46H	45B2	-	-
50B	14B50	-	-	-

Product Advantage

Product Advantage

HIGH STRENGTH

Carbon steel coils offer excellent strength and durability, making them suitable for various industrial applications.
VERSATILITY

Carbon steel coils can be easily formed, welded, and machined, allowing for versatile usage in different industries.Carbon steel coils are cost-effective compared to other materials, providing a cost-efficient solution for manufacturing processes.
WIDE AVAILABILITY

Carbon steel coils are readily available in various grades and sizes, ensuring easy sourcing for different project requirements.

Application

Why choose us？

Why Choose Us

We are among the top 20 companies in the steel industry in terms of trade volume, offering customized processing and one-stop steel purchasing solutions. Our steel exports have consistently exceeded tens of billions for the past 5 years. With a comprehensive range of testing equipment including UT & ET, hydraulic testing equipment, spectrometer, scanning electron microscope, and SGS TUV certification, we ensure top-notch quality. Our Quality Assurance Policy sets high standards to deliver products and services that surpass customer expectations.

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FAQ

FAQs

Q1: Can you send samples?

A1: Of course, we can send samples to all over the world, our samples are free, but customers need to bear the courier cost.
Q2: What product information do I need to provide?

A2: You need to provide grade, width, thickness and the ton you need to buy.
Q3: What are the shipping ports?

A3: You can choose other ports according to your needs.
Q4: About the product price?

A4: Due to the cyclical changes in raw material prices, prices vary from period to period.
Q5: What certifications do your products have?

A5: We have ISO 9001, SGS, EWC and other certifications.
Q6: How long does your delivery time take?

A6: Generally, our delivery time is within 7-45 days.
Q7: Can I visit your factory?

A7: Of course, we welcome customers from all over the world to visit our factory.
Q8: Does the product have quality inspection before loading?

A8: Of course, all our products have undergone strict quality inspection before packing.
Q9: How to pack the product?

A9: The inner layer has a waterproof paper outer layer, iron packaging, and is fixed with a fumigated
wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Q10: What are your working hours?

A100: Under normal circumstances, our online service hours are: 8:00-22:00. After 22:00, we will reply to
your inquiry on the next working day.