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30CrMnSi High-strength High quality Alloy Structure Steel Plate/Coil

Material 30CrMnSi
Standards ASTM,JIS,GB,EN(DIN,BS,NF)Or Per as clients’ requires.
Technique Forged
Thickness 8mm to 250 mm
Width 1500mm to 4050mm
Length 3000mm to 15000mm
Transport Package as Required

30CrMuSi steel is a high-strength quenched and tempered structural steel widely used. Its chemical composition and mechanical properties are regulated by the Chinese standard GB∕T3077-2015.  

30CrMuSi alloy steel carbon content generally does not exceed 0.34%.

30CrMuSi alloy steel has the following general characteristics:

(1)Low carbon Content: 30CrMuSi steel plate is high quality alloy steel plate. The carbon content in 30CrMuSi is generally not exceed 0.34%, making it a low carbon alloy structural steel suitable for forming processes.

(2)Excellent property: It has high strength and toughness, high hardenability, medium cold deformation plasticity, and good cutting performance. 30CrMnSi alloy steel plate has a tendency of temper brittleness, poor transverse impact toughness and good weldability.

(3)Strong wear resistance: 30CrMnSi has high hardness and strength, the surface is not easy to wear, and it can still maintain good performance under high temperature and high pressure conditions.

The Element Max (%)Composition

Grade

C

Si

Mn

P

S

30CrMnSi

0.27~0.34

0.90~1.20

0.80~1.10

0.035

0.035

 

Grade

 

30CrMnSi  Mechanical Property

 

Thickness

Yield

Tensile

30CrMnSi

mm

Min Mpa

Mpa

6-50

885

1080

50-200

885

1080

Main characteristics of 30CrMnSi alloy structural steel:

30CrMnSi alloy structural steel is high strength Quenched and tempered steel. It has high strength and toughness, high hardenability, moderate plastic deformation and good machinability. It has temper brittleness and transverse impact toughness. The weldability is better, but when the thickness is greater than 3mm, the 30CrMnSi steel should be preheated to 150 C and do heat treatment after welding, and be used after Quenching and tempering.

Application of 30CrMnSi alloy structural steel:
30CrMnSi steel is used to manufacture all kinds of important parts of high load and high speed, such as gear, shaft, clutch, sprocket, wheel shaft, shaft sleeve, bolt, nut and so on. 30CrMnSi alloy structural steel is also used to make parts with wear-resistant, working temperature not high, the welded components of variable load, such as the blades of high pressure blower, valve plate, etc.

Classification By Size

The length is generally 2440mm, 2000mm, 3050mm, 4000mm, 3000mm, and the thickness is distinguished by cold rolling and hot rolling. Cold rolling mainly has thickness 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm. The main thickness of hot rolling is 3.0mm, 4.0mm, 6.0mm, 8.0mm, 10.0mm, and the width is generally 1000mm, 1219mm, 1500mm.Please contact customer service for general specifications.

Hot-rolled products have excellent properties such as high strength, good toughness, easy processing and good weldability, so they are widely used in manufacturing industries such as steel, construction, machinery, boilers, and pressure vessels. Application range: (1) After annealing, it is processed into ordinary cold rolling; (2) The galvanizing unit with pre-annealing treatment device processes galvanizing; (3) Panels that basically do not need to be processed.

Hot-rolled coils (in the form of flat plates or coils) generally have a thickness of 2.0-13.5mm, of which the price of 2.0-3.0mm hot coils gradually decreases from thin to thick; most steel mills have a basic price of 3.1mm-13.5mm Equivalent, the price of 3.1-4.0mm and 9.5mm-13.5mm hot plate coils in some manufacturers and markets may be higher than the price of 4.0mm-9.5mm plates. Hot plate coils represent products with a thickness of 5.5mm. Under normal circumstances, the price of flat plates is slightly higher than the price of coils.

The Element Max (%)Composition
GradeCSiMnPS
30CrMnSi0.27~0.340.90~1.200.80~1.100.0350.035
Grade 30CrMnSi  Mechanical Property 
Thickness

YieldTensile
30CrMnSimmMin MpaMpa
6-508851080
50-2008851080

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