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4135/4140/4142/6150 Alloy Plate EN10083-3

EN 10083-3:2006 steel is an alloy steel used for quenching and tempering. This standard regulates the technical delivery conditions of alloy steels. Under the steel 50CrMo4, 51CrV4, 20MnB5, 34CrMo4, 42CrMo4, 27MnCrB5-2. EN 10083-3 steel plate has high strength, high toughness and good hardenability. The alloy requires high temperature preheating before welding to eliminate the stress after welding.

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4135/4140/4142/6150 Alloy Plate EN10083-3 Description

Product Parameters

Product Name	4135/4140/4142/6150 Alloy Plate EN10083-3
Production Process	Hot Rolling, Cold Rolling
Material Standards	AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Width	100mm-3000mm
Length	1m-12m, or Customized Size
Thickness	0.1mm-400mm
Delivery Conditions	Rolling, Annealing, Quenching, Tempered or Standard
Surface Process	Ordinary, Wire Drawing, Laminated Film

Chemical Composition

Brand	C	Si max	Mn	P max	S max	Cr	Mo	V
34CrMo4	0.3-0.37	0.40	0.6-0.9	0.025	0.035	0.9-1.2	0.15-0.3	-
42CrMo4	0.38-0.45	0.40	0.6-0.9	0.025	0.035	0.9-1.2	0.15-0.3	-
50CrMo4	0.46-0.54	0.40	0.5-0.8	0.025	0.035	0.9-1.2	0.15-0.3	-
51CrV4	0.47-0.55	0.40	0.7-1.1	0.025	0.025	0.9-1.2	-	0.1-0.25

Mechanical Properties

Thickness mm	Re min. N/mm2	Rm N/mm2	A min %	From min %	KVb min J
≤8	900	1000-1300	10	40	-
8-20	750	1000-1200	11	45	35
20-60	650	900-1100	12	50	35
60-100	550	800-950	13	50	35
100-160	500	750-900	14	55	35

Scope of Application

EN 10083-3 steel plates are used to manufacture tools that require good plasticity and high strength. It is usually selected to manufacture large parts and important parts, such as heavy mechanical shafts, turbine shaft blades, high loads of transmission parts, fasteners, crankshafts, gears, and heavy-duty parts of motor structures.

Equivalent Material

European Standard	American Standard	German Standard	Japanese standard	National Standard	International Standards
34CrMo4	4135	34CrMo4	SCM435H	35CrMo	34CrMo4
42CrMo4	4140, 4142	42CrMo4	SCM440H	42CrMo	42CrMo4
50CrMo4	-	50CrMo4	-	50CrMo	50CrMo4
51CrV4	6150	50CrV4	SUP10	50CrVA	51CrV4

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How do you guarantee product quality?

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Our factory operates under strict QA/QC standards. Every product is inspected during production and before shipment to ensure it meets agreed quality specifications. We can provide mill test certificates and accept thirdparty inspections upon request.

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What certifications do you have?

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Our products comply with international standards including ASTM, ASME, DIN, and EN. We also hold quality management certifications and can provide relevant documentation upon request.

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Can I get samples before ordering?

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Yes. We can provide free samples for your evaluation. Shipping costs are typically borne by the customer. Please contact our sales team to arrange sample delivery.

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What is your minimum order quantity (MOQ)?

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MOQ varies by product type and specification. For certain items, trial orders may be considered. Please contact us with your specific requirements for a confirmed MOQ.

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What payment terms do you accept?

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We commonly accept T/T (30% deposit in advance, 70% balance before shipment) and L/C. Other payment terms may be negotiated depending on order value and cooperation conditions.

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Do you offer discounts for large orders?

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Yes. We have strong capabilities for largescale project supply and offer favorable pricing for bulk orders. Our 100,000ton stock capacity allows us to provide competitive rates for volume purchases.

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What is your typical lead time?

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For stocked products, we can deliver to the loading port within 3–7 days after receiving the deposit. For production orders, lead time is typically 15–30 days after order confirmation, depending on product type and quantity.

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What shipping terms do you support?

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We support EXW, FOB, CIF, CFR, DDU, and other common trade terms. Shipping can be arranged by sea, air, or courier based on your requirements.

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How do you package the products?

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We use standard export packaging suitable for sea freight. For fragile or highsurfacefinish products such as stainless steel, we apply strict protective packaging to prevent scratches and damage during transit. Custom packaging is also available upon request.

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Yes. Bulk procurement is one of our core business models. With over 100,000 tons of stock and a robust supply chain, we are wellequipped to handle largevolume orders for overseas projects, manufacturers, and trading companies.

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Yes. Our professional service team is available to address any questions regarding product quality, delivery, or usage. We are committed to providing ongoing support throughout our partnership.

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