AISI 4130 Forged Bar / AISI 4130 Round Bars

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Forged
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Alloy: Alloy
• Special Use: Mold Steel, Alloy Steel
• Model NO.: aisi 4130
• Products: Forged Steel Bars
• Types: Forged Round Bar, Square Bar, Forged Ring
• Grade: 1035 1045 4130 4140 8620 4340 etc
• Surface: Forged Black or Rough Turned
• Transport Package: Standard Sea Worthy
• Specification: 200-1000mm
• Trademark: Laiwu Xincheng
• Origin: China
• HS Code: 72284000
• Production Capacity: 3000tons/Month

Product Description

 

AISI 4130 alloy steel is a medium carbon, low alloy steel in ASTM A29 standard. ASTM 4140 steel is also commonly referred to as a chromoly steel, or chrome moly steel, containing nominally 0.28-0.33% Carbon, 0.8-1.1% Chromium and 0.15-0.25% Molybdenum. It is similar to 4140 steel which has a higher carbon level (0.28-0.33%), giving 4130 material improved weldability, at the expense of through thickness strength. With the proper heat treatment it is also readily machined. Annealing ASTM 4130 alloy steel offers excellent ductility. AISI 4130 steel is usually supplied as round bar commonly in the hardened and tempered condition

1.4130 Steel equivalent

Country	British	USA	Japan	BS
Standard	BS 970	ASTM A29	JIS G4105	EN10083
Grade	708A25/708M25	4130	SCM430	25CrMo4/1.7218

 
2.4130 steel chemical composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
4130	0.28-0.33	0.15-0.35	0.4-0.6	0.035	0.04	0.8-1.1	0.15-0.25	/
25CrMo4	0.22-0.29	0.4	0.6-0.9	0.025	0.035	0.9-1.2	0.15-0.30	/
SCM430	0.28-0.33	0.15-0.35	0.6-0.85	0.03	0.03	0.9-1.2	0.15-0.30	/

3.Forged Steel Size we can supply:
Forged Steel Round Bar: Φ85mm~1200mm
Forged Square steel Bar: 150×150-800×800mm
Forged Flat Blocks: (150mm-800mm)*(200mm-800mm)
Forged Shaft and Forged Ringd: According to Customer's drawing

4.Inspecting: UTS according toSEP1921 C/c, D/d, E/e, A388 or GB/T 6402, Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,
5.Grain size: 6-8
6.Processing:EAF+LF+VD(Annealed,normalized,Quenched+Tempered,peeled,rough turned).
7.Heat Treatment: Normalized / Annealed / Quenched / tempered (optional)
8.Delivery Condition:
Forged+black surface
Forged+rough machined
Forged+rough turned+QT/annealed/normalized

9.About our factory:
Our main products include Forged Steel Round Bar from Sizes 85mm to 1100mm, Forged Steel Square Bar from Sizes 150×150 to 800×800mm with various grade ;The largest production steel ingot 15T, mainly forged alloy steel, carbon steel and other materials. The annual output of forged round can reach 60,000 tons. The products are widely used and can be supplied to users in metallurgy, chemical, hydraulic, port and marine machinery The main equipment includes a 2000-ton hydraulic press, a 3-ton electro-hydraulic hammer, a 2.5-meter ring rolling machine, and is equipped with large and small traveling machines, metalworking lathes, and multiple large and small sawing machines. The company now has more than 100 sets of production equipment from a whole set of processes from blanking, heating, forging to heat treatment and machining

10.Main Grade we can supply for forged steel bars

Steel series	Representative steel type
Carbon Steel series	AISI 1020,1045,A36,S355JR,S355JO
Petroleum machinery series	AISI4150,AISI4140,AISI4130,
	30CrMo,4145H
Tool mold series	1.2714,5CrMnMo,5CrNiMoV,
	1.2738,1.2311,1.2312
Bearing series	52100,GCr15,SUJ2
Marine series	4140,42CrMo,SCM440,
	709M40
Car series	SAE8620,20CrNiMo,
	SNCM220
Heavy-duty transmission series	40CrNiMo,SNCM439,
	SAE4340,EN24
Mining machinery series	655M13,826M40,
	25CrMo
Wind power gear series	18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620
Wind power spindle series	34CrNiMo6,817M40
Nitriding series	20MnCr5,38CrMoAl,
	31CrMoV9
Pressure vessel series	15CrMo,13CrMo4-4
Metallurgical roll series	21CrMoV511,W1.7225,
	EN19,709M40