ASTM 4140 Solid Low Carbon Round Rods Alloy Steel Bar

• After-sales Service: Yes
• Warranty: 20 Years
• Type: Carbon Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Model NO.: BAR
• Surface Treatment: Oil
• Alloy: Alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Product Name: Carbon Steel Round Bar
• Outer Diameter: 5mm-1000mm
• Length: 500mm-6000mm
• Type1: Low Alloy High Strength Structure Steel
• Type2: Prime Carbon Structure Steel
• Type3: Alloy Structure Steel
• Type4: Spring Steel
• Type5: Bearing Steel
• Type6: Oil Wells Structural Steel
• Type7: Marine Anchor Chain Steel
• Material: 20mn, 65mn, 37mn5, 36mn2V, etc
• Production Process: Hot Rolling/Cold Rolling
• Color: Black
• Section: Round
• Inspection: ISO, BV, SGS, Mtc
• Transport Package: Standard
• Specification: customized
• Trademark: huazhu
• Origin: China

Product Description

Product Description

CARBON STEEL BOUND BAR

Round steel is a common steel material with a round shape and is usually used to manufacture various mechanical parts, building structures, automobile parts, etc. The manufacturing process of round steel is relatively simple and the cost is low, so it is widely used in the industrial field.

Classification by process

Round steel is divided into three types: hot rolled, forged and cold drawn. The specifications of hot-rolled round steel are 5.5-250 mm. Among them: small round steel of 5.5-25 mm is mostly supplied in straight strips and bundles, and is commonly used as steel bars, bolts and various mechanical parts; round steel larger than 25 mm is mainly used to manufacture mechanical parts and seamless steel pipe blanks. wait.

Classification by chemical composition

Carbon steel can be divided into low carbon steel, medium carbon steel and high carbon steel according to its chemical composition (i.e. carbon content).

Classification by steel quality

According to the quality of steel, it can be divided into ordinary carbon steel and high-quality carbon steel.

Classified by use

According to use, it can be divided into carbon structural steel and carbon tool steel.
Carbon tool steel has a carbon content between 0.65 and 1.35%. It can obtain high hardness and high wear resistance after heat treatment. It is mainly used to manufacture various tools, cutting tools, molds and measuring tools (see tool steel).


Round steel is widely used in construction, machinery, automobiles, ships, aerospace and other fields. In the construction field, round steel can be used to make beams, columns, plates, etc. of reinforced concrete structures; in the mechanical field, round steel can be used to make various bearings, gears, connecting rods and other mechanical parts; in the automotive field, round steel can Used to manufacture wheels, axles, brackets and other parts; in the fields of shipbuilding and aerospace, round steel also has its unique application value.
 

Product Parameters

 

Product Name	carbon steel round bar
Outer Diameter	5-1050mm, or as per requirements
Length	500mm-6000mm or as customer request
Standard	ASME, ASTM, EN, BS, GB, DIN, JIS, etc
Low alloy high strength structure steel	Q295, Q345, Q390, Q420, Q460
Prime Carbon structure steel	10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45 1015 1020 1025 1030 1035 1045 1050
Alloy structure steel	30Mn2, 40Mn2, 27SiMn, 42Crmo,20Cr, 40Cr, 20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi,20MnVB, 20MnTiB, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V, 45MnV,
Spring Steel	65Mn, 60Si2Mn, 50CrVA
Bearing Steel	GCr15, GCr15GD,55SiMoV
Structural steels subject to end-quench hardenability requirements	20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b, 35MnBM, 40MnB,45MnV.
Oil wells structural steel	37Mn5, 36Mn2V
Marine anchor chain steel	CM490, CM690, M30Mn2

 

Standard	Grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)	Hardness
GB3087	10	335~475	≥195	≥24	/
20	410~550	≥245	≥20	/
GB5310	20G	410~550	≥245	≥24	/
20MnG	≥415	≥240	≥22	/
25MnG	≥485	≥275	≥20	/
15CrMoG	440~640	≥235	≥21	/
12Cr2MoG	450~600	≥280	≥20	/
12Cr1MoVG	470~640	≥255	≥21	/
12Cr2MoWVTiB	540~735	≥345	≥18	/
10Cr9Mo1VNb	≥585	≥415	≥20	/
ASME SA210	SA210A-1	≥415	≥255	≥30	≤143HB
SA210C	≥485	≥275	≥30	≤179HB
ASME SA213	SA213 T11	≥415	≥205	≥30	≤163HB
SA213 T12	≥415	≥220	≥30	≤163HB
SA213 T22	≥415	≥205	≥30	≤163HB
SA213 T23	≥510	≥400	≥20	≤220HB
SA213 T91	≥585	≥415	≥20	≤250HB
SA213 T92	≥620	≥440	≥20	≤250HB
DIN17175	ST45.8/	410~530	≥255	≥21	/
	15Mo3	450~600	≥270	≥22
13CrMo44	440~590	≥290	≥22	/
10CrMo910	480~630	≥280	≥20	/

 

Detailed Photos

 

Packaging & Shipping

 

Company Profile

Company Information

 

Shandong Huazhu Metal Manufacture Co.Ltd

 

is located in Jinan, the world's spring water capital. It is a diversified private enterprise,involving many fields such as steel trading, production, processing, and international trade. Mainly deals in steel sheet, profiles steel, hot rolled, cold rolled steel coil sheet, galvanized steel coil sheet, galvalume steel coil,color coated steel coil,corrugated steel roof sheet, sandwich panel, imported wear-resistant plates,pipe steel,c/z/u channel steel,h beam steel,angle bar steel,aluminum sheet,stainless steel, etc.

Company will uphold the service concept of "pragmatism, integrity, cooperation, and win-win", continue to innovate and make unremitting efforts to establish an international trade hub that quickly connects with global trade needs.All employees of the company will continue to serve customers, develop together, and cooperate for a win-win situation !

With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in mechanical manufacturing , metallurgical minerals , building materials, shipping, aircraft, automobile and other industries. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. 
Our company covers an area of 30000 square meters, more than 200 existing employees and total annual revenue 280000000 USD. We are willing to accompany customers to grow together and welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!

Certifications

 

FAQ

1.Do you provide free samples?
Yes, we can provide free sample for testing,buyer should bear all the shipping costs.

2.How long is your delivery time?
Generally it is 3-7 days if the goods are in stock or it is 7-15 days if the goods are not in stock, it is according to quantity.

3.How can we guarantee quality?
Always a pre-production sample before mass production;always final Inspection before shipment.And we can also accept the third-party inspection and quarantine.

4.Why should you buy from us not from other suppliers?
Diversified products, direct supply from manufacturer.

5.What is your terms of payment ?
We accept T/T ,L/C etc.
The payment method can be negotiated by both parties according to the actual situation.