AISI 4140 Hot Rolled Forged Steel Round Bar / 4140 Square Forged Bar

China AISI 4140 Hot Rolled Forged Steel Round Bar / 4140 Square Forged Bar, Find details about China Forged Round Bars, Steel Round Bars from AISI 4140 Hot Rolled Forged Steel Round Bar / 4140 Square Forged Bar

Basic Info.

Model NO.

AISI 4140 Hot Rolled Forged Steel Round Bar / 4140

Special Use

Mold Steel, Cold Heading Steel

Ut Test

Sep1921- Class C/C,D/D

PRO

Forged Steel Bars

Grades

AISI 4340 Steel / 36CrNiMo4 / 1.6511 / En24 / 817m

MOQ

1PC

Trademark

Laiwu Xincheng

Transport Package

Standard Seaworthy

Specification

200-1000mm

Origin

China

HS Code

72284000

Model NO.

AISI 4140 Hot Rolled Forged Steel Round Bar / 4140

Special Use

Mold Steel, Cold Heading Steel

Ut Test

Sep1921- Class C/C,D/D

PRO

Forged Steel Bars

Grades

AISI 4340 Steel / 36CrNiMo4 / 1.6511 / En24 / 817m

MOQ

1PC

Trademark

Laiwu Xincheng

Transport Package

Standard Seaworthy

Specification

200-1000mm

Origin

China

HS Code

72284000

Product Desciption

AISI 4140 Hot Rolled Forged Steel Round Bar / 4140 Square Forged Bar

1.About 4140 Alloy Steel Bars:

.AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength.

2. AISI 4140 Steel Specification and Relevant Standards

GB,YB	JIS	DIN(W-Nr.)	ASTM	BS	NF
42CrMo	SCM440/(SCM4)	42CrMo4-1.7225	4140	708M40/709M40/708A42 /EN19	42CD4

3. ASTM 4140 Steels And Equilvalents Chemical Composition

Standard	Grade	C	Si	Mn	P	S	Cr	Mo
ASTM A29	4140	0.38-0.43	0.15-0.35	0.75-1.00	≤ 0.035	≤ 0.04	0.8-1.1	0.15-0.25
	42CrMo4	0.38-0.45	≤ 0.4	0.6-0.90	≤ 0.025	≤ 0.035	0.9-1.2	0.15-0.30
EN10083	1.7225	0.38-0.45	≤ 0.4	0.6-0.90	≤ 0.025	≤ 0.035	0.9-1.2	0.15-0.30
JIS G4105	SCM440	0.38-0.43	0.15-0.35	0.6-0.85	≤ 0.035	≤ 0.04	0.9-1.2	0.15-0.30
GB 3077	42CrMo	0.38-0.45	0.17-0.37	0.5-0.80	≤ 0.035	≤ 0.035	0.9-1.2	0.15-0.25
BS 970	EN19	0.35-0.45	0.15-0.35	0.5-0.80	≤ 0.035	≤ 0.035	0.9-1.5	0.2-0.40

AISI 4140 Hot Rolled Forged Steel Round Bar / 4140 Square Forged Bar

4.AISI 4140 Forged Round Bar Mechanical Property :
(For refference only, property can be changed by adjusting quenching and tempereing tempreture)

Grade	Tensile strength σb(MPa)	Yield strength σs (MPa)	Elongation δ5 (%)	Reduction ψ (%)	Impact Value Akv (J)	Hardness
4140	≥1080	≥930	≥12	≥45	≥63	28-32HRC

5.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 Ring	According to Customer's drawing

5.Inspecting:
UT according toSEP1921 C/c, D/d, E/e, A388 or GB/T 6402,
Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,

6.Delivery Condition:
Forged+black surface
Forged+rough machined
Forged+rough turned+QT/annealed/normalized
Surface condition: Black; Peeled; Polished; Machined; Grinded; Turned; Milled
7.Manufacture:EAF+LF+VD(Annealed,normalized,Quenched+Tempered,peeled,rough turned).
8.Heat Treatment: Normalized / Annealed / Quenched / tempered (optional)

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,
Petroleum machinery series	30CrMo,4145H
Tool mold series	1.2714,5CrMnMo,5CrNiMoV,
Tool mold series	1.2738,1.2311,1.2312 1.2714 H13
Bearing series	52100,GCr15,SUJ2
Marine series	4140,42CrMo,SCM440,
Marine series	709M40
Car series	SAE8620,20CrNiMo,
Car series	SNCM220
Heavy-duty transmission series	40CrNiMo,SNCM439,
Heavy-duty transmission series	SAE4340,EN24
Mining machinery series	655M13,826M40,
Mining machinery series	25CrMo
Wind power gear series	18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620
Wind power spindle series	34CrNiMo6,817M40
Nitriding series	20MnCr5,38CrMoAl,
Nitriding series	31CrMoV9
Pressure vessel series	15CrMo,13CrMo4-4
Metallurgical roll series	21CrMoV511,W1.7225,
Metallurgical roll series	EN19,709M40

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.

AISI 4140 Hot Rolled Forged Steel Round Bar / 4140 Square Forged Bar