China Ballistic Missiles and Nuclear Arms Thread

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Hyper

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1125 tonnes is actually quite low unless it is monthly or something special. The US was producing 14000 tonnes of HMX annually in 1969.
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"HMX is currently produced at only one facility in the United States, the Holston Army Ammunition
Plant in Kingsport, Tennessee. Estimated production volume of HMX was about 30 million pounds
annually between 1969 and 1971. No estimates of current production volume were located, but it is
estimated that its use is increasing (Army 1984a, 1989; EPA 1986)."


I know, it was the Vietnam War era and the US ammunition spending was crazy but the numbers don't add up.
I thought that N-15 used RDX additives.
 

Totoro

Major
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If one takes the US DoD report's suggestion of 300 ICBM launchers in active service right now for granted - how would one go about trying to dissect that number? The DoD report gives nothing in that regard, but still. For the life of me, I can't come even close to that figure.

Even if there are 36 DF-5 operational right now
Even if there are 48 DF-41 operational right now
Even if there are 80-ish DF-31 operational right now
Even if there are 90 JL-2/3 operational right now (let's say they have more than silos available)

That's STILL not close to 300. And 99% of people would say some of these numbers above are too wild and unrealistically high. With most people agreeing the current tally is closer to 200.

Yes I know one should not just take the figure for granted, there's a chance it's just a mistake on their part but still - i'd like to hear other people try to reach the 300 figure.
 

ACuriousPLAFan

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in simple words. current WgPu production or reserves are enough for 1600-2000 warheads and if China increase production then 2900-3500 warheads.

am i right ?
What would be the explosive yield of each of these 1600-2000 warheads?

Besides, is it possible for China to produce as much nuclear warheads as the US and Soviet did during the Cold War, i.e. 20-30 thousand nuclear warheads?
 
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Kalec

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1125 tonnes is actually quite low unless it is monthly or something special. The US was producing 14000 tonnes of HMX annually in 1969.
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"HMX is currently produced at only one facility in the United States, the Holston Army Ammunition
Plant in Kingsport, Tennessee. Estimated production volume of HMX was about 30 million pounds
annually between 1969 and 1971. No estimates of current production volume were located, but it is
estimated that its use is increasing (Army 1984a, 1989; EPA 1986)."


I know, it was the Vietnam War era and the US ammunition spending was crazy but the numbers don't add up.
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It was said that they produced 3,500 tonnes of HMX annually as of 2001, still significantly higher than my prediction. I agree that the number didn't add up even if one assumes it would be 2,000 tonnes annual production in Gansu after expansion.

A 2011 journal suggested that one production line accounts for 1,000 tonnes of annual production and China built its HMX back in earlier 2000s. The official news said the two rounds of expansion increased the production rate by respectively 53.7% in 2016, 42.55% in 2017, 5.43% in 2019 and 53.94% in the first half of 2020.

The 50%/30 million yuan expansion could have meant to be the expansion of 2016, at least 53.7% is closer to 50%. If it is that case, the current production would be around 2,500 tonnes annually.

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BoraTas

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It was said that they produced 3,500 tonnes of HMX annually as of 2001, still significantly higher than my prediction. I agree that the number didn't add up even if one assumes it would be 2,000 tonnes annual production in Gansu after expansion.

A 2011 journal suggested that one production line accounts for 1,000 tonnes of annual production and China built its HMX back in earlier 2000s. The official news said the two rounds of expansion increased the production rate by respectively 53.7% in 2016, 42.55% in 2017, 5.43% in 2019 and 53.94% in the first half of 2020.

The 50%/30 million yuan expansion could have meant to be the expansion of 2016, at least 53.7% is closer to 50%. If it is that case, the current production would be around 2,500 tonnes annually.

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Are these plants in China dedicated HMX plants? RDX production also produces HMX as a byproduct. The ratio is usually 8-12%. For example in the US figure for 1969, around two thirds of the HMX production was the result of RDX production. China should be producing a lot of HMX as the byproduct of RDX production.
 

Kalec

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Are these plants in China dedicated HMX plants? RDX production also produces HMX as a byproduct. The ratio is usually 8-12%. For example in the US figure for 1969, around two thirds of the HMX production was the result of RDX production. China should be producing a lot of HMX as the byproduct of RDX production.
Honestly I don't know. The official news use very vague language to describe RDX/HMX.

What I know is that RDX is called as Product 801, Reduced Sensitivity RDX (RS-RDX) is probably called as Product 8701, both of them were manufactured by 3rd plant.

HMX is called as Product 101, manufactured by 4th plant, and there is another new dedicated production line called as "Important Product manufacturing line", which I believe to be a product line of HMX as well but use DADN as intermediate.
 

ACuriousPLAFan

Brigadier
Registered Member
Is Zhang Hui and Yang Zhang the same person?

Either way, I found this article from a post dated 2002 (and re-quoted in another article just yesterday). No idea about its reliability and authenticity.
在据香港《TheTrend》杂志的一份文件透露,中国目前拥有2350颗核弹头。这一数字是八倍于西方媒体所通常引述的300颗数量。在2,350颗核弹中,有550颗是战术核弹及1, 800颗战略核弹。文件还显示在八十年代核弹头年产量大约是110-120颗,前几年大约140-150颗每年。这些数字是合理的。根据八十年代后期美国发行的“中国制造的核弹”(ChinaBulitTheBomb)一书及美国各情报机构的数据,中国至少每年生产800公斤的铀U-235和400公斤的(钚)PU-239:兰州气态扩散厂(GaseousDiffusionPlant)400公斤U-235/年贺兰山离心分离机I400公斤U- 235/年玉门增殖反应堆250公斤Pu-239/年包头增殖反应堆150公斤Pu-239/年广原增殖反应堆。

  典型的核裂变装置(核弹)在美国和俄罗斯核武库平均用15公斤U-235或5公斤Pu-239,有数万吨TNT当量。实际上,核裂变装置可以只用1。8公斤Pu-239通过中子增殖反应技术及U-238/铍反射剂,但这种产品几乎达不到千吨TNT甚至次千吨TNT当量。然后,已经足够裂变触发高能原子核反应装置(即氢弹),除了裂变触发,氢弹可以不需要另加U-235/Pu-239。锂6-重化合物融合核心加U-238推杆和U-238外套作为标准的裂变-聚变裂变 “氢弹”。或者,以钨作为推杆和外套的裂变-聚变“中子弹”过生产的裂变材料(U-235/Pu-239)数量,很可能中国正每年制造140-150核弹头,并积累了2,350枚之多。

Roughly translated:
China currently has 2350 nuclear warheads, according to a document in Hong Kong's <The Trend> magazine. This number is 8 times the 300 usually quoted by the Western media. Of the 2,350 nuclear warheads, 550 are tactical warheads and 1,800 are strategic warheads. The document also shows that the annual production of nuclear warheads was about 110-120 warheads in the 1980s and about 140-150 warheads per year in previous years (in the 2000s). These numbers are reasonable. According to the book "ChinaBulitTheBomb" issued by the United States in the late 1980s and data from various U.S. intelligence agencies, China produces at least 800 kg of uranium U-235 and 400 kg of plutonium Pu-239 per year:
Lanzhou Gaseous Diffusion Plant (LGP) - 400 kg U-235/year
Helanshan Centrifuge - 400 kg U-235/year
Yumen Breeder Reactor - 250 kg Pu-239/year
Baotou Breeder Reactor - 150 kg Pu-239/year
Guang Yuan Breeder Reactor - ???/year

Typical nuclear fission devices (nuclear bombs) in the U.S. and Russian nuclear arsenals use on average 15 kg of U-235 or 5 kg of Pu-239 with tens of thousands of tons of TNT equivalent. However, a nuclear fission device can be made with only 1. 8 kg Pu-239 by neutron multiplication reaction technology and U-238/beryllium reflector, but this product barely reaches kilotons of TNT or even sub-kilotons of TNT equivalent. Following this, there is already enough fission to trigger a high-energy ”atomic nuclear reactor“ (i.e. hydrogen bomb), and the hydrogen bomb can be used without the additional U-235/Pu-239 except for the fission trigger.

A lithium-6-heavy compound fusion core with a U-238 actuator and U-238 jacket is used as a standard fission-fusion fission "hydrogen bomb".

Alternatively, with the amount of fissile material (U-235/Pu-239) produced for a fission-fusion "neutron bomb" with tungsten as the actuator and jacket, it is likely that China is building 140-150 nuclear warheads per year and has accumulated as many as 2350.

The English translation may not be totally accurate, so for anyone who can understand the article better, feel free to rectify.

Is this bogus or no?
 
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Kalec

Junior Member
Registered Member
Is Zhang Hui and Yang Zhang the same person?

Either way, I found this article from a post dated 2002 (and re-quoted in another article just yesterday). No idea about its reliability and authenticity.


Roughly translated:


The English translation may not be totally accurate, so for anyone who can understand the article better, feel free to rectify.

Is this bogus or no?

Chinese warhead production is probably close to 20 pits per year according to a slide from Sandia NL, perhaps 9th Academy will ramp up warheads pit production recently as Decker claims there is new expansion of facility but I don't know where.

I really don't know "arm control nerds" keep coping about muh plutonium stockpile.

China can gradually ramp up plutonium pits production rate by using current stockpile, and the CFR-600 will come online next year providing enough material for 200 kg/yr. And it is the most expensive part of warheads, HEU and Lithium-6 Deuteride is comparably much cheaper than plutonium.

Let's check the very "think tankie" reports quoted by Pentagon, indicating additional 1,000 warheads from reprocessing fast breeder fuel.

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rambo54

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Registered Member
Wait, is there a new 637 Brigade? I can't find any info on them.

From what I heard, there were 5 rounds of DF-5 expansion and DF-5C won't be ready any time soon as the engine is still being tested and no maiden flight confirmed yet.

Btw are u sure that the new built silo is operational rn? And I am quite sure some silos construction come under radar because I heard from sources that some new DF-5 silos were built near Yueyang but I can't find them.
The 662 is an ex DF-4 BGD which had four ROTLs and one (DF-4) "silo" (elevated launch concept).
Now this unit will/has become a DF-5 unit. Definitely 12 silos (puls one trg) are under construction.
The four ex ROTL sites are looking finished and might be operational already.
Moreover there are definitely TWO new BGD (634 & 637). One of them (I think designation is 634) is similiar to the 662 and has 12 (plus one trg) silo construction of the type the 662 is getting.
But there is another BGD (I think designation is now 637) which has four new silo constructions of the type the 662 is getting.
They are at the former ROTL sites of the Tongdao (ex DF-4) unit. I've looked around this area but wasn't able to find (eight plus one) more silos to bring this field to a similiar configuration as with the 662 / 634.
So the purpose of these 4 new silo configuration is somewhat questionable for me. Maybe a further Training field / BGD?
I don't want to go into details for the 634 because I promised to wait until Decker Eveleth will come out with his new report and an updated map.
But the bottom line is that we have 30 [2x(12+1) + 4) new build DF-5 silos of which 4 are already without construction tents.
Together with the 3x6 old DF-5 silos we have 48!

Regarding the impressive ICBM figures of the 2022 Pentagon Report I have my doubts.
Their overall ICBM figure greatly depends on the guess of how many of the "sandy" silos (already without construction tents) of the Hami, Yumen and Ordos fields can be considered really OPERATIONELL!
Most of the silos are hardly recognizable and are covered with a kind of layer of sand. Most of the support facilities are also not yet completed. There are hardly any telltale activities at the silos. So I'm not sure if you can really classify every silo that doesn't have a construction tent as operational. I think that's just anticipated at the moment. In my opinion it will take another year or two before these sites are really operational.
In the days of the "Soviet Military Power" Publications, I attributed great precision to Pentagon publications.
But these days I'm not so sure if the information given in these yearly releases is really accurate.
I think there is also a certain proportion of "educated guesses" in there.
And for me it seems that only after Decker Eveleth and Hans Kristensen have found and unveiled these fields they finally included this information in the 2022 Pentagon Report.

The reported number (6) for the Type 093 submarines also seems a bit too small to me.
Elsewhere in the report they mention 9 SSN. However, the last three type 091 are not all available (if at all).
It's also a pity that they give so few details about the DF-17 (at least two BGDs and probably corresponding reduction of DF-11) and DF-100 BGD (in exchange for DF-10?).
Of course they know to do better, but it seems to me that they simply do not want to disclose this in the report itself.
In so far the figures of the Report must be viewed with caution.
Cheers
 
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