What's standard material of X458 conveyor chain? Can you provide chain with 40CrNiMo (AISI8640)

What's standard material of X458 conveyor chain? Can you provide chain with 40CrNiMo (AISI8640)

Our standard material of coveyor chain is 40Cr(AISI5140). If customer need special material, like 40CrNiMo(AISI8640/8642) that is also available.