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EN 25CrMo4/30CrMo Steel Coil
EN 25CrMo4 (1.7218): Chromium-molybdenum alloy steel with ~0.25% carbon.
30CrMo (GB): Chinese equivalent, similar to AISI 4130 but with slight compositional variations.
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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 %)

ElementEN 25CrMo4 (1.7218)30CrMo (GB)AISI 4130 (for ref.)
Carbon (C)0.22–0.29%0.26–0.34%0.28–0.33%
Chromium (Cr)0.90–1.20%0.80–1.10%0.80–1.10%
Molybdenum (Mo)0.15–0.30%0.15–0.25%0.15–0.25%
Manganese (Mn)0.60–0.90%0.40–0.70%0.40–0.60%
Silicon (Si)0.10–0.40%0.17–0.37%0.15–0.35%
Phosphorus (P)≤0.025%≤0.035%≤0.035%
Sulfur (S)≤0.025%≤0.035%≤0.040%
Iron (Fe)Balance

Physical Properties

Property25CrMo430CrMo
Tensile Strength (TS)700–900 MPa750–950 MPa
Yield Strength (YS)550–700 MPa600–800 MPa
Elongation (50mm)12–18%10–15%
Hardness (HB)220–280240–300
Impact Energy (Charpy, 20°C)≥40 J≥35 J

Typical Applications

Oil & Gas IndustryDrill collars, pipelines, high-pressure valves.
Wellhead components, riser systems.
Automotive & AerospaceGear shafts, crankshafts, axle components.
Aircraft landing gear parts (similar to AISI 4130).
Power GenerationTurbine blades, boiler tubes, fasteners.
High-stress bolts for wind turbines.
Heavy MachineryHydraulic cylinders, crane hooks.
Mining equipment components.
Tooling & DiesDies for hot-work applications.
Mold bases (after proper 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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