1996cc
Well-Known Member
I’ve talked to Dave Schlossberg (owner of Synergy) many times. They heat treat it after they bend it. Then they weld the ends on. So technically the heat treating at the ends is changed with welding, but the main bar is in fact treated after they bend it to spec.Yeah, it's all about the details though. All mill run 4130 chromoly is heat treated.Most of the commercially available chromoly tube is in the "normalized" condition. (97k tensile, 63k yield). So, for Dynatrac to claim "heat treated" is without definition beyond purchasing regular off-the-rack chromoly tube. It could be that they do some additional heat treating to a higher hardness. But that would be very unusual and costly for this type of part. Metalcloak provides a bit more meaningful information by stating they use normalized 4130 and providing the ultimate tensile strength number (97k psi). Theoretically, you could heat treat 4130 to over 200k psi. That would be a fairly expensive process to use for such a product and the benefits are likely minimal. Unlikely, anyone does this.
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