30crmnsia Alloy Structure Hot Rolled Steel Round Bar Carbon Steel Polished

• Type: Alloy Steel Bar
• Standard: GB
• Composition: 30crmnsia
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Polished
• Model NO.: 30CrMnSiA
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Structure Pipe
• Secondary or Not: Non-Secondary
• Tolerance: ±1%
• Grade: 30crmnsia
• Processing Service: Cutting
• Section Shape: Round
• Thickness: 2 - 12 mm
• Alloy or Not: Is Alloy
• Delivery Time: 30 Days
• Special Pipe: API Pipe
• Oiled or Non-Oiled: Non-Oiled
• Certificate: ISO9001
• Transport Package: Standard Seaworthy Packing
• Specification: Diameter: 20mm-1000mm Length: 500mm-6000mm
• Trademark: Dongbei Special Steel
• Origin: Jiangsu, China
• HS Code: 72285000
• Production Capacity: 10000 Ton/Tons Per Week

Product Description

Material: GB 30CrMnSiA,30CrMnSi Alloy Steel bar

  30 crmnsia carbon, high strength, poor welding performance. After 30 crmnsia quenched and tempered high strength and toughness, enough hardenability. After conditioning, the material spindle gear, chain wheel is ok. 30 crmnsia has good workability, machining deformation of small, anti-fatigue performance is quite good. Used for shaft, piston spare parts, etc. Used in automobile, aircraft, various special wear-resistant parts, et

 

Product Basic Information:

1.Chemical Composition and Mechanical Properties(In Quenched & Tempered State):

 

Chemical Composition		Mechanical Properties(In Quenched & Tempered State)
C	0.27-0.34	Tensile strength(MPA)	≥1080
Si	0.90-1.20	Yield strength (MPA)	≥ 835
Mn	0.80-1.10	Elongation(δ5/%)	≥ 10
Cr	0.80-1.10	Reduction in Area (ψ/%)	≥ 45
Cu	≤ 0.30	Impact  (J)	≥ 39
Ni	≤ 0.30	Hardness	≤229HBS(not heat treatment)
Mo	≤ 0.15
S	≤0.035
P	≤0.035

 

 

 

 2.Product Application Areas:

Our products have been used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,chemical industry,electronic information,achine manufacture, petrochemical, automotive,instrument and meter, Communication ,transportation, and medical instruments, etc.

 

3.Similar steel grade & equivalent steel materials:

USA	Japanese	Gemany	British	France	International	Chinese
ASTM&AISI&SAE	JIS	EN DIN	EN BS	EN NF	ISO	GB
---	---	----	----	----	----	30CrMnSiA 30CrMnSi

 

Detailed Photos