FAQ

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    Can I customize products?

    Yes. We specialize in making customized car engine parts. No matter you want to add your favorite counterweight design to your crankshaft, select a different beam for your rod, change the duration of your camshaft, or any other customization, we try our best to meet your special needs.

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    Can the price of product change?

    Yes. All of our product prices vary based on their material, quantity, and special customization you required. Therefore, please ALWAYS contact our customer service before placing any order.

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    What’s the approximate lead time?

    If the product is in stock, we will arrange shipment within 3 days.

    If the product is not in stock, the lead time is 50-60 days for connecting rods, and 80-90 days for crankshafts and camshafts (after confirming the drawing) to ensure the best quality.

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    Which shipping express you can offer?

    We can ship by TNT, FedEx, DHL, etc. Or we can also ship by sea if it’s a bulk order.

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    Can I point my own freight?

    Yes. You can always choose your preferred shipping method and delivery company. Just contact our customer service beforehand.

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    How long does it take to get my inquiry responded?

    We try our best to get back to all inquiries within 12 hours. But please do understand that due to time zone differences and the amount of inquiries we receive, sometimes it may take a little longer.

Special Note of Material:

GB-40CrNiMoA

We are specialized in making customized 40CrNiMoA crankshafts and connecting rods. 40CrNiMoA round bar has high strength and hardness, good weld ability, toughness, machinability, and so on.

Equal material of 40CrNiMoA:

DIN AISI JIS BS RUSSIA
34CRNIMO6 4340 SNCM439(SNCM8) 871M40 40NiCrMo7

When someone needs to purchase this kind of material, supplier will convert to local name. Do Pay attention, they are similar but not exactly the same. Chemical composition comparison as follows:

Grade C Si Mn Cr Ni Mo
40CrNiMoA 0.37~0.44 0.17~0.37 0.50~0.80 0.60~0.90 1.25~1.65 0.15~0.25
4340 0.38~0.43 0.15~0.35 0.60~0.80 0.70~0.90 1.65~2.00 0.20~0.30
SNCM439 0.36~0.43 0.15~0.35 0.60~0.90 0.60~1.00 1.60~2.00 0.15~0.30