Iron Bar Chrome Alloy Steel Bar 42CrMo4 JIS Scm440 ASTM 4140 Steel Round Bar Iron Rods for Building Construct

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: 4140
• Technique: Hot Rolled,Cold Drawn,Forged
• Shape: Bar
• Surface Treatment: Black,Grinding,Bright,Polish,Turn,Peel
• Special Use: Alloy Structural Steel
• Application: Structural Steel Bar
• Origin Place: Made in China
• Surface Require: Black,Grinding,Bright,Polish,Turn,Peel
• Trade Term: EXW,Fob,CIF
• Delivery Time: in 10-50 Days
• Heat Treatment: Quenched,Tempered,Annealed
• Delivery Condition: Hot Rolled,Cold Drawn,Forged
• Transport Package: Seaworthy Packing,Wooden Case,Carton,Woven Bag or
• Specification: Length: 3000mm-6000mm
• Trademark: DONGBEI SPECIAL STEEL
• Origin: Liaoning
• Production Capacity: 50000tons/Year

Product Description

Product Description

Alloy steels are designated by AISI four-digit numbers. They are more responsive to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.
AISI 4140 alloy steel is a low alloy medium carbon steel. AISI 4140 steel is commonly referred to as Chromoly steel or chrome moly steel.
 

Technical parameters
Material	4140 steel round bar
Size	Diameter:5mm-1000mm
	Length:3000mm-6000mm
Origin place	Made In China
Delivery Condition	Hot rolled,cold drawn,forged
Surface require	Black,grinding,bright,polish,turn,peel
Heat treatment	Quenched,Tempered,annealed
Packing	seaworthy packing,wooden case,carton,woven bag or at client's requires
Delivery time	In 10-50 days
Trade Term	EXW,FOB,CIF
Payments	T/T or L/C at sight
Port	China main Port,such as shanghai, Dalian, shenzhen port.

 

Chemical Composition

 

AISI	GB/T	DIN	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	V
4118	20CrMo	18CrMo4	1.7243	0.18-0.23	0.15-0.35	0.70-0.90	≤ 0.035	≤ 0.035	-	0.4-0.6	0.08-0.15	-
4130	30CrMo	25CrMo4	1.7218	0.28-0.33	0.15-0.35	0.40-0.60	≤0.035	≤ 0.040	-	0.80-1.10	0.15-0.25	-
4135	35CrMo	34CRMO4	1.722	0.33-0.38	0.15-0.35	0.70-0.90	≤ 0.035	≤ 0.040	-	0.80-1.10	0.15-0.25	-
4140	42CrMo	42CrMo4	1.7225	0.38-0.43	0.15-0.35	0.75-1.00	≤ 0.035	≤ 0.040	-	0.80-1.10	0.15-0.25	-
4340	40CrNiMo	36CrNiMo4	1.6563	0.38-0.43	0.15-0.35	0.60-0.80	≤ 0.035	≤ 0.040	1.65-2.00	0.70-0.90	0.20-0.30	-
5115	15CrMn	16MnCr5	1.7131	0.14-0.19	≤ 0.4	1.0-1.30	≤ 0.025	≤ 0.035	-	0.80-1.10	-	-
5120	20Cr	20Cr4	1.7016	0.17-0.22	0.15-0.35	0.7-0.9	≤0.035	≤ 0.040	-	0.70-0.90	-	-
5120	20CrMn	20MnCr5	1.7147	0.17-0.22	0.15-0.40	1.1-1.4	≤ 0.025	≤ 0.035	-	1.0-1.3	-	-
5140	40Cr	41Cr4	1.7035	0.38-0.43	0.15-0.35	0.7-0.9	≤ 0.035	≤ 0.040	-	0.70-0.90	-	-
6150	50CrV	51CrV4	1.8159	0.48-0.53	0.15-0.35	0.70-0.90	≤ 0.035	≤ 0.040	-	0.80-1.10	-	≥0.15
8620	20CrNiMo	21NiCrMo2	1.6523	0.18-0.23	0.15-0.35	0.7-0.9	≤ 0.035	≤ 0.040	0.4-0.7	0.4-0.6	0.15-0.25	-

 

Detailed Photos

 

  

 

 

Company Profile

SICHUAN LIAOFU SPECIAL STEEL COMPANY.,LTD

Sichuan Liaofu Special Steel Company.,Ltd was established in 2001, specialized in special steel production and inventory as the main business. In 2004, our company Chairman Mr.Mike Guo purchased a batch of advanced equipment for the production of hot rolled and forged products.After several years of development, our company has gradually formed a complete production and operation system of smelting, refining, forging , heat treatment. Meanwhile we began to expand overseas markets and Obtained the national export license and the customs certificate since 2005. In 2007, we concluded the first export order. For satisfying customers' extensive demands,We have set up a sales department for rare metals such as titanium and copper in 2009.

We has state-of-the art production lines with leading-edge technology for bearing steel 100Cr6, stainless steel 304 / 316 / Duplex
UNS S31803 and Super Duplex UNS S3276, alloy steel 4130/4140/8620 ,high speed tool T1/M2/M35/M42 and die steel D2/D3/H13/H21/P20,The products covers special steel round, square, flat, wire rod, wire, sheet, pipe, strip and heavy forgings.Produces forged round steel (¢120~850mm) and square steel (120~550mm) of various steel grades. The largest production steel ingot 13T, mainly forged alloy steel. The annual output of forged round can reach 60,000 tons.

 

 

 

Recommend Product

We Have State Of The Art Production Lines With Leading Edge Technology For Bearing Steel 100Cr6, Stainless Steel 304 / 316 / Duplex UNS S31803 And Super Duplex UNS S3276, Alloy Steel 4130/4140/8620, High Speed Tool T1/M2/M35/M42 And Die Steel D2/D3/H13/H21/P20. The Products Covers Special Steel Round, Square, Flat, Wire Rod, Wire, Sheet, Pipe, Strip And Heavy Forgings. Produces Forged Round Steel (¢120~850mm) And Square Steel (120~550mm) Of Various Steel Grades.

Alloy Steel	4140,4142,42CrMo4,1.7225,SCM440,4130,SCM430,25CrMo4,1.7218,34CrNiMo6, 1.6582,4340,SNCM439,36CrNiMo4,1.6511,SACN645,1340,SMn438,SNC236
Tool Steel	H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419, SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
^Bearing Steel	GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel	9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159
Stainless Steel	321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028, 434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according toquantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.lf you have another question, pls feel free to contact us.