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Product Description

Product Description

40CrNiMoA 40CrNiMoA round steel, 40CrNiMoA alloy steel, 40CrNiMoA Steel, alloy structural steel is called alloy steel for short. 40CrNiMoA is one of the alloy steel, also known as alloy steel. It is a kind of steel made by appropriately adding one or more alloy elements (the total content is not more than 5%) on the basis of high-quality carbon structural steel. The common quality defects of bearing parts after heat treatment are: quenching microstructure overheating, underheating, quenching cracks, insufficient hardness, heat treatment deformation, surface decarburization, soft spots, etc.Performance characteristicsdensity ρ (kg/m3): about 7830Modulus of elasticity (GPA): 209tensile strength σ b (MPa):≥980(100)yield strength σ s (MPa):≥835(85)elongation δ 5 (%):≥12Reduction of area ψ (%):≥55Impact energy Akv (J): ≥ 78Impact toughness value α kv (J/cm²): ≥98(10)Sample size: sample blank size is 25mmHeat treatment: (quenching 850 degrees; coolant: oil; tempering temperature 600 degrees; coolant: water, oil);Brinell hardness HBW ≤ 269 in the supply state of steel annealing or high temperature tempering;Delivery statusThe goods shall be delivered in the state of heat treatment (normalizing, annealing or high temperature tempering) or no heat treatment, and the delivery state shall be indicated in the contract.

FAQ

FAQS:Q:How to get a formal effective quotation?
A:According to your required specification, such as material(Article) ,main dimension, and the quantity you need, we will provide a formal effective quotation within a working days
Q:How to deal with the parts received when they are found to be in poor quality?
A:Please rest assured that all our products are QC inspected completely and accepted with inspection report before delivery.Generally there will no non-conformance.In case of non- conformance, and the errors identified was caused by us, we will arrange to repair or make right parts for you
Q:What is the MOQ?
A:Usually we don't set MOQ, but the more, the cheaper.Besides, we are happy to make prototype or sample for clients to ensure quality standard
Q:Whether some samples can be provided ?
A:Yes, just need some sample cost, we will return it back when proceed into mass production
Q:If we can not find what we want on your website, what should we do?
A:You can email us the descriptions and pictures of the products you need, we will check whether we have them.We develop new items every month, and some of them have not been uploaded to website in time.Or you can send us sample by express, we will develop this item for bulk purchasing.