I believe the newest HHQ-16C/HQ-16C only has a range of about 70km, while most of the HHQ-16s in PLAN service only has a 40-45km range. Most anti-ship operations today involve launching anti-ship missiles and other standoff weapons at least 100-160 km away. LRASM can do 900km from an F/A-18. Therefore, should I say that the HHQ-16 will mainly function as incoming standoff weapon interceptors, unlike the HHQ-9?
(1)Missiles are most probably replaceable - at least, it would make sense.
(2)HQ-16a - export one - is a 650 kg, 5.2m long, 0.34m wide missile with a 70kg warhead, with a quoted speed of 1200 m/s.
To compare, SM-2MR is a 707kg, 4.73m long, 0.34m wide missile with a 61kg warhead, with a quoted speed of mach 3(i.e. same or slightly lower), yet it is capable of ranges up to ~160km.
Furthermore, closely related buk/shtil missiles are still heavier than that(up to ~780kg), and, as we know from Russian/Indian Grigorovich class frigates - vertical launchers can handle them just fine.
Thus,
I assume similar ranges are perfectly achievable for the HQ-16 system.
This is a very heavy missile with helluva rocket fuel - it's twice as heavy as Barak-8 of Indian destroyers, for example.
(3)Side note on LRASM: the range you've quoted is a JASM-ER range. LRASM is a different missile with a different seeker, different warhead, and, above all, different flight/search/attack profiles. Realistically LRASM is a ~560km class missile, and combat complications will only make it less, not more. This, however, isn't really a concern of the ship - even missiles that potentially can reach that far are unlikely to be effective against attacking aircraft. It's just too far.
But LRASM is a "heavy" anti-ship missile for USN aircraft, which can't be carried internally - and thus places its carrier under significant risk; furthermore, its actual naval carriers are limited as of now(superbugs only for now) There are other weapons that shall be taken into account.
(4)USN also introduces NSM - as the main armament of its frigates, as well as the future main armament of its F-35C fleet. Here the difference between maximum range of the missile and the abovementioned maximum potential range of the interceptor is already becoming reasonable - thus
frigates are complicating attackers' calculus. The same is true for Harpoon, which won't go anywhere anytime soon.
Furthermore - while range of the frigate may not be sufficient to protect the frigate itself from the release of the weapon - it'll work nicely if we'll add a 3rd object to the equation. Something more valuable and/or vulnerable than the frigate, which is protected by the said ship.
(5)ASM strikes rarely consist of ASCM alone - such strike is straightforward, and thus is relatively easy to repel. Air ASCM attack is typically supported by ARM strike - and these don't fly anywhere as far. In fact, even shiny new AARGM-ER is quoted as good for "only" 80 nm.
(6)Secondary means of anti-ship attack - for example, SDBs or related British SPEARs with active seekers are capable of even less - and their range is highly dependent on the altitude of their release.