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AISI/SAE 4140 Carbon Steel Bar

4140 is a 1% chromium-molybdenum medium hardenability general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa (condition T). 4140 now have improved machinability, which greatly increases feed and/or speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding.

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Carbon Steel Bar

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WhatsApp : +8618954226796

Email: sales1@taihangmetals.com

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AISI/SAE 4140 Carbon Steel Bar Description

Product Name	AISI/SAE 4140 Carbon Steel Bar
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI, etc.
Common Round Bar Specifications	3.0-50.8 mm, Over 50.8-300mm
Flat Steel Common Specifications	6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm
Hexagon Bar Common Specifications	AF5.8mm-17mm
Square Bar Common Specifications	AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm
Length	1-6meters, Size Accept Custom
Diameter(mm)	Hot Rolling Round Bar	25-600	Cold Rolling Square Bar	6-50.8
	Hot Rolling Square Bar	21-54	Cold Rolling Hexagon Bar	9.5-65
	Cold Rolling Round bar	6-101.6	Forged Rebar	200-1000
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical Composition

Grade	Mn	S	C	P	Si	Cr	Ni
AISI 4140	0.75-1.00	0.035	0.38-0.43	0.035	0.20-0.35	0.8-1.1	0.15-0.25

Mechanical Properties

Grade	Tensile Strength psi	Yield Strength psi	Elongation %	Hardness HRC
AISI 4140	100k	80k	20	18-22

Scope of Application

SAE 4140 are widely used in most industrial sectors, with a wide range of applications, such as: adapters, spindles, axles, bolts, crankshafts, connecting rods, chuck bodies, chucks, conveyor belt pins and rollers, ejection pins, forks, gears, Guide rods, hydraulic shafts and parts, lathe spindles, logging parts, milling spindles, motor shafts, nuts, clamping rods, various pins, pins, pump shafts, plungers, sleeve, spindle, sprocket, stud bolt, tool holder, torsion bar, worm, etc.

USA	Japan	Germany		U.K.		France	Italy	Spain	Switzerland	China
AISI/SAE	JIS	W‐nr.	DIN	BS	EN	AFNOR	UNI	UNE	SS	GB
A570.36	STKM 12A	1.0038	RSt.37‐2	4360	‐	E 24‐2	‐	‐	1311	15
-	STKM 12C	-	-	40 C	-	Ne	-	-	-	-
1015	‐	1.0401	C15	080M15	‐	CC12	C15, C16	F.111	1350	15
1020	‐	1.0402	C22	050A20	2C	CC20	C20, C21	F.112	1450	20
1213	SUM22	1.0715	9SMn28	230M07	1A	S250	CF9SMn28	F.2111	1912	Y15
1213	SUM22	1.0715	9SMn28	230M07	1A	S250	CF9SMn28	11SMn28	1912	Y15
12L13	SUM22L	1.0718	9SMnPb28	‐	‐	S250Pb	CF9SMnPb28	11SMnPb28	1914	‐
‐	‐	1.0722	10SPb20	‐	‐	10PbF2	CF10Pb20	10SPb20	‐	‐
1215	‐	1.0736	9SMn36	240M07	1B	S300	CF9SMn36	12SMn35	‐	Y13
12L14	‐	1.0737	9SMnPb36	‐	‐	S300PB	CF9SMnPb36	12SMnP35	1926	‐
1015	S15C	1.1141	Ck15	080M15	32C	XC12	C16	C15K	1370	15
1025	S25C	1.1158	Ck25	‐	‐	‐	‐	‐	‐	25
A572-60	‐	1.890	StE380	4360 55	‐	‐	FeE390KG	‐	2145	‐
1035	‐	1.0501	C35	060A35	‐	CC35	C35	F.113	1550	35
1045	‐	1.0503	C45	080M46	‐	CC45	C45	F.114	1650	45
1140	‐	1.0726	35S20	212M36	8M	35MF4	‐	F210G	1957	‐
1039	‐	1.1157	40Mn4	150M36	15	35M5	‐	‐	‐	40Mn
1335	SMn438(H)	1.1167	36Mn5	‐	‐	40M5	‐	36Mn5	2120	35Mn2
1330	SCMn1	1.1170	28Mn6	150M28	14A	20M5	C28Mn	‐	‐	30Mn
1035	S35C	1.1183	Cf35	060A35	‐	XC38TS	C36	‐	1572	35Mn
1045	S45C	1.1191	Ck45	080M46	‐	XC42	C45	C45K	1672	Ck45
1050	S50C	1.1213	Cf53	060A52	‐	XC48TS	C53	‐	1674	50
1055	‐	1.0535	C55	070M55	9	‐	C55	‐	1655	55
1060	‐	1.0601	C60	080A62	43D	CC55	C60	‐	‐	60
1055	S55C	1.1203	Ck55	070M55	‐	XC55	C50	C55K	‐	55
1060	S58C	1.1221	Ck60	080A62	43D	XC60	C60	‐	1678	60Mn
1095	‐	1.1274	Ck101	060A96	‐	XC100	‐	F.5117	1870	‐
W1	SK3	1.1545	C105W1	BW1A	‐	Y105	C36KU	F.5118	1880	‐
W210	SUP4	1.1545	C105W1	BW2	‐	Y120	C120KU	F.515	2900	‐

FACTORY APPEARANCE

Whether it is carbon steel, stainless steel, galvanized, color-coated or profiles, we have in-depth research and rich practical experience. Each product embodies our efforts and wisdom to ensure that we provide customers with the highest quality and most reliable steel products.

PACKING AND DELIVERY

We can provide,
wooden pallet packaging,
Wooden packing,
Steel strapping packaging,
Plastic packaging and other packaging methods.
We are willing to package and ship products according to the weight, specifications, materials, economic costs and customer requirements.
We can provide container or bulk transportation, road, rail or inland waterway and other land transportation methods for export. Of course, if there are special requirements, we can also use air transportation

CUSTOMER FEEDBACK

We strictly control product quality to ensure that every ton of steel meets national standards and provide customers with high-quality products. At the same time, we pay attention to after-sales service and always provide customers with thoughtful services, which has won the trust and praise of customers. We serve global customers with a global vision.

WHY CHOOSE TAIHANG STEEL

For the steel industry, customers value quality and after-sales service the most. We always adhere to high standards and strict requirements and are committed to becoming your preferred partner.

Quality Assurance

We are well aware that quality is the lifeline of the steel industry. Therefore, we adhere to strict quality control processes to ensure that each batch of steel products meets national standards and provides solid protection for your projects.

Industry Experience

With many years of industry experience, we have a deep understanding of market demand and can provide customized products and services according to customer needs to ensure that your business is fully supported.

Professional Team

We have a professional team with rich technical knowledge and practical experience. No matter what problems we encounter, we can respond quickly and provide effective solutions.

After-sales Service

We value the feedback of every customer and provide a full range of after-sales services to ensure that you have no worries during the cooperation process.

PRODUCT MEASUREMENTS

GET A FREE QUOTE

If you have any needs, we can tailor professional steel solutions for you.

WhatsApp : +8618954226796

Email: sales1@taihangmetals.com

APPLICATION AREAS

Automotive

Shipbuilding

Building Manufacturing

Machine Manufacturing

FAQ

Q:Once the products received by customer were found not comply with the products or contract demands, what will you do?

A:Our goods have passed QC inspection before export and provide regular MTC for customer review. In case of quality disputes, the customer shall inform the supplier within 7 working days after receiving the goods and arrange the international third party to carry out inspection and send the damage report to the supplier. Once confirmed by our company, our company unconditionally reissue or return shipping refund！

Q：How about the payment terms?

A:We accept a variety of payment terms, but there are specific restrictions: 1.Amount less than Fifty thousand dollars,we only accept TT payment; 2.Amount from $50,000 to $300,000,we accept TT deposit and balance by LC at sight; 3.Amount more than $300,000,we can do LC 180 days upon little down payment. Finally, we can provide OA service for our frequent customer cooperation and who have a good reputation & professional in their local market.

Q:Whether to accept inspection company and factory？

A：Whether you choose to work with us or not. We accept different customers personally or commissioned third parties to audit factory and company.And hereby promise not to charge any inspection fee or guarantee deposit in advance.

Q:How to ensure that the quantity and material delivered meet customer requirements?

A:We will take a video of each package of goods and record the pieces/weight of the goods. And material inspection through PMI.And assure all customers that if the quantity or material of the goods you receive does not match the order and send the exact evidence. Our company will fine you ten for one fake

Q:What is the delivery time?

A:Depends on whether the goods are in stock and the quantity. Stock Materials: Generally 7-10 days to complete the cutting and packaging and shipment; Customized Materials:About 20-30days for production and arrange the shipment.

Q：What is your MOQ?

A:All the materials at least for 2tons,but the price it’s relatively expensive. Up to 50 tons, a maximum discount of 5% is offered; 50 tons to 200 tons,can provide discount 5%-10%; More than 200tons can get discount 10%-20%. The larger the tonnage, the greater discount we can offer. Every Chinese and foreign holidays, our company has a lot of different strong discounts, welcome to pay attention to the company news consultation.

Carbon Steel Bar