Lub sijhawm ntawm cov khoom siv hlau thiab cov chaw ua lag luam tau nce mus rau qhov loj. Piv txwv li, ib ncig ntawm 1870 lub teb chaws British tawg tau ua rau nruab nrab ntawm 25 tons ntawm ib hnub twg, tau nce mus rau ntau tshaj 800 tons hauv xyoo 1969, thiab nce mus rau 1,370 tons hauv xyoo 1979. Xyoo 1980, Nyij Pua tau tsim muaj 3,660 tons hlau ib hnub rau qhov cub tawg. Thaum lub Rau Hli Ntuj xyoo 1981, muaj 126 qhov chaw sib tawg nrog ntau tshaj 2000 cubic meters hauv ntiaj teb, 45 tshaj 3000 cubic meters, thiab 4,000 cubic meters nrog 23 lub ntiaj teb steel kev lag luam thiab peb ntawm 5000 cubic meters. Qhov nruab nrab ntawm qhov nruab nrab ntawm lub tshuab hluav taws xob sib kis tau zoo tshaj yog 430,000 tons hauv Lub Xya Hli Ntuj xyoo 1962. Nws nce mus rau 1.18 lab tons thaum Lub Kaum Ob Hlis 1972 thiab nce mus rau 1.4 lab tons hauv Lub Rau Hli 1982; lub ntiaj teb kub sawb ntxawm zeb Txhua xyoo muaj peev xwm, feem ntau ntawm cov uas tau ua ua ntej xyoo 1960, yog qis dua 2 lab tons. Cov qib high-theem rolling muab tso rau hauv kev ua haujlwm rau xyoo 1960 yog 350 mus rau 4,5 lab tons, thiab niaj hnub rolling zeb ua hauv xyoo 1970s txog li 5 mus rau 6 lab tons.
Cov khoom loj thiab khoom siv tsis ntev los no tsis ntev los no tau coj los ua kom muaj kev nce zuj zus hauv cov khoom siv hlau thiab cov tog hlau ntau. Xyoo 1980, 10 lab tons ntawm cov hlau tau tsim. Xyoo 1980, muaj txog 50 steel mills nrog rau txhua xyoo tawm ntawm ntau tshaj 5 lab tons ntawm hlau nyob hauv lub ntiaj teb, suav nrog 14 Soviet Union thiab Nyiv. 13, Tebchaws Meskas 6. Qhov loj tshaj plaws cov tshuab cog nrog cov hluav taws xob txhua xyoo ntawm Steel yog lub Fukuyama cog ntawm Japanese Steel Pipe Company. Nyob rau hauv 1976, cov hlau ntau txog 19.19 lab tons. Qhov loj tshaj plaws cov khoom siv hlau yog lub Xeev Sov hlau Magnitogorsk hlau (ua tau cog steel). Los ntawm Lub Ob Hlis 1982, nws tsim tau 370 plhom tons ntawm cov hlau, ua raws li Nyiv Nyog Steel Corporation lus xaiv tsob nroj, thiab kev sib txuas ntawm cov khoom tawg hauv thaum xyoo 1982. 220 lab tons. Qhov loj tshaj plaws nyob rau hauv lub ntiaj teb yog New Nyiv Hlau Corporation. Hauv xyoo 1973, nws tsim tau 41.07 lab tons ntawm cov hlau. Los ntawm kev tsim ntawm cov nroj tsuag mus rau 95 xyoo ntawm xyoo 1982, qhov cumulative steel ntau txog 650 lab tons. Nyob rau tib lub sij hawm raws li loj-scale hlau thiab steel tuam txhab, me me thiab medium-tsuas steel tuam txhab, tshwj xeeb tshaj yog me me mills, ntxiv mus tsim. Los ntawm pib ntawm 1981, muaj 280 me steel mills thoob ntiaj teb, thiab txhua xyoo steel hlau ntau lawm yog li ntawm 60 lab tons. Nyob rau hauv teb chaws Asmiskas thaum xyoo 1982, lub tsev me me hlau muaj peev xwm txhua xyoo ntau tshaj 20 lab tons, thiab nws cov qhob steel tsim kom muaj li 15% ntawm lub teb chaws tag nrho cov hlau luam.
