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SAE 1040 Steel Coil
SAE 1040 (or AISI 1040) is a medium-carbon steel with ~0.40% carbon content, offering higher strength and hardness than low-carbon steels (e.g., SAE 1020) while retaining reasonable ductility. It is widely used in machinery and automotive components requiring heat treatment.
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Product Parameters

Product Parameters

Product NameSAE4130 Carbon Steel Coil
Production ProcessHot Rolling, Cold Rolling
Material StandardsAISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Width45mm-2200mm
LengthCustom Size
ThicknessHot Rolling: 2.75mm-100mm
Cold Rolling: 0.2mm-3mm
Delivery ConditionsRolling, Annealing, Quenching, Tempered or Standard
Surface ProcessOrdinary, Wire Drawing, Laminated Film

Chemical Composition (Weight %)

ElementSAE 1040 (AISI)
Carbon (C)0.37–0.44%
Manganese (Mn)0.60–0.90%
Phosphorus (P)≤0.040%
Sulfur (S)≤0.050%
Silicon (Si)0.15–0.35%

Physical Properties

PropertySAE 1040 Value
Tensile Strength (TS)520–790 MPa
Yield Strength (YS)350–420 MPa
Elongation (50mm)12–20%
Hardness (Brinell HB)170–210 HB

Typical Applications

Automotive & MachineryAxles, crankshafts, gears (heat-treated).
Hydraulic rods, spindles.
Construction & ToolsBolts, studs, high-strength fasteners.
Wrenches, vise parts.
Industrial EquipmentShafts, couplings, machine frames.
Agricultural machinery components.
General EngineeringPressed parts, forged components.
Wear-resistant plates (after hardening).


Product Display

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Product Application

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Product Packaging

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Factory Display
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FAQ

Q:Can I get samples before order ?

A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.

Q:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.

Q:How can I get a quotation from you ?

A:You can leave us message, and we will reply every message in time. Or we may talk on line.

Q:What product information do I need to provide?

A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.

Q:What are the advantages of your company?

A:（1）More Than 30 year's Experience

（2）The company is a modern steel enterprise group integrating precision manufacturing, spot warehousing, international logistics, and product deep processing.

（3）World-class production equipment, product quality that meets international certifications, and timely and thoughtful after-sales service

（4）Never stop product research and development and innovation to create high-quality products that meet the global standards.

（5）Integrity business philosophy, the highest quality products, the most reasonable prices, and a global marketing network.

Q:How do we trust your company?

A:We specialise in steel business for years as golden supplier on Alibaba, headquarter locates in liaocheng, Shandong province, you are welcome to investigate in any ways, by all means, you could place an order in Alibaba with trade assurance which could secure your payment.

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