Roj thiab roj pipeline daim ntawv yuav tsum.

Foreword tus qauv no yog tsim raws li cov kev cai muab hauv GB / t1.1-2009.

Cov qauv no hloov GB / t21237-2007 dav thiab tuab steel daim hlau rau cov roj thiab cov kav dej xa mus.Piv nrog GB / t21237-2007, cov kev hloov pauv tseem ceeb yog raws li hauv qab no:

  • ——- hloov kho qhov tuab ntawm 6mm-50mm (saib Tshooj 1, Tshooj 1 ntawm 2007 tsab);
  • ——- kev faib tawm, hom kev qhia hom thiab cov cai raug hloov kho;cov kev faib tawm thiab cov lej raug ntxiv, thiab cov qauv qhia txog hom tau muab faib ua ntau hom raws li qhov sib txawv ntawm kev xa khoom (saib Tshooj 3, Tshooj 3 ntawm 2007 tsab);
  • ——- PSL1 thiab PSL2 cov qib zoo tau ntxiv, hom l210 / A thiab cov kev cai cuam tshuam tau ntxiv rau qib PSL1 zoo;ob hom l625m / x90m thiab l830m / x120m thiab cov kev cai cuam tshuam tau ntxiv rau PSL2 qib zoo (saib Table 1, rooj 2, rooj 3 thiab rooj 4);
  • ——- cov ntsiab lus txiav txim tau raug hloov kho (saib Tshooj 4, Tshooj 4 ntawm 2007 tsab);
  • ——- cov kev cai ntawm qhov loj me, cov duab, qhov hnyav thiab qhov tso cai sib txawv tau hloov kho (saib Tshooj 5, Tshooj 5 ntawm 2007 tsab);cov tshuaj lom neeg muaj pes tsawg leeg, txhua yam khoom siv thiab thev naus laus zis ntawm txhua hom yog hloov kho (Table 2, rooj 3, rooj 4, rooj 1, rooj 2, rooj 3 ntawm 2007 tsab);
  • ——- cov kev cai ntawm txoj kev smelting tau raug hloov kho (saib 6.3, 2007 version 6.2);
  • ——- kho qhov kev xa khoom (saib 6.4, 2007 version 6.3);
  • ——- ntxiv cov kev cai ntawm cov qoob loo loj, tsis yog-hlau suav nrog thiab cov qauv banded (saib 6.6, 6.7 thiab 6.8);- hloov cov kev cai ntawm qhov zoo thiab cov kev cai tshwj xeeb (saib 6.9 thiab 6.10, 2007 versions 6.5 thiab 6.7);– hloov cov kev cai ntawm txoj kev xeem, ntim, cim thiab daim ntawv pov thawj zoo (saib Tshooj 9, 2007 version, Tshooj 9);
  • ——- ntxiv cov cai rau kev sib sau ntawm tus lej (saib 8.5);
  • ——- Cov Ntawv Ntxiv A ntawm tus qauv qub (2007 Tsab Ntawv Ntxiv Ntxiv A) raug tshem tawm.Cov qauv no yog npaj los ntawm Tuam Tshoj Iron thiab Steel Industry Association.phau ntawv

Tus qauv yog nyob rau hauv kev txiav txim ntawm National Steel Standardization Technical Committee (SAC / tc183).

Drafting units ntawm tus qauv no: Shougang Group Co., Ltd., metallurgical kev lag luam cov ntaub ntawv txheej txheem tshawb fawb lub koom haum, Jiangsu Shagang Group Co., Ltd., Hunan Hualing Xiangtan Iron thiab Steel Co., Ltd., Guangzheng Zog Co., Ltd., gangyanke Testing Technology Co., Ltd. thiab Magang (Group) Holding Co., Ltd.

Cov qauv tseem ceeb ntawm tus qauv no: Shi Li, Shen qinyi, Li Shaobo, Zhang Weixu, Li Xiaobo, Luo Deng, Zhou Dong, Xu Peng, Li Zhongyi, Ding Wenhua, Nie Wenjin, Xiong Xiangjiang, Ma Changwen, Jia Zhigang. versions ntawm cov qauv hloov los ntawm tus qauv no yog raws li nram no:

  • ———GB/T21237—1997, GB/T21237—2007

 

Dav thiab tuab steel phaj rau roj thiab roj kav

1.Scope

Cov txheej txheem no qhia txog kev faib tawm thiab hom kev qhia txog hom, qhov loj me, cov duab, qhov hnyav, cov kev xav tau, cov qauv kev sim, kev soj ntsuam cov cai, ntim, cov cim thiab cov ntawv pov thawj zoo ntawm daim hlau dav thiab tuab rau cov roj thiab cov kav xa dej.

Cov qauv no muaj feem xyuam rau lub dav thiab tuab steel phaj (tom qab no hu ua steel phaj) nrog lub thickness ntawm 6 hli ~ 50 hli rau cov roj thiab cov nkev xa cov kav dej uas tsim los raws li iso3183, GB / t9711 thiab apispec5l, thiab lwm yam. dav thiab tuab steel daim hlau rau cov kua kis tau tus mob thiab vuam kav kuj tuaj yeem xa mus rau tus qauv no.

  1. Cov ntaub ntawv raws cai

Cov ntaub ntawv hauv qab no yog qhov tseem ceeb rau kev siv daim ntawv no.Rau cov ntawv sau hnub tim, tsuas yog cov ntawv sau hnub tim tsuas yog siv tau rau daim ntawv no.Rau cov ntaub ntawv tsis raug txheeb xyuas, qhov tseeb version (nrog rau tag nrho cov kev hloov kho) muaj feem xyuam rau daim ntawv no.

GB / t223.5 steel kev txiav txim siab ntawm acid soluble silicon thiab tag nrho cov ntsiab lus silicon txo molybdosilicate spectrophotometric txoj kev.

GB / t223.12 txoj hauv kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab alloy cov sodium carbonate sib cais diphenylcarbazide photometric txoj kev rau kev txiav txim siab ntawm cov ntsiab lus chromium.

GB / t223.16 txoj hauv kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab hlau Cov chromotropic acid photometric txoj kev rau kev txiav txim siab ntawm titanium cov ntsiab lus.

GB / t223.19 txoj hauv kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab alloy lub neocuproine chloroform extraction photometric txoj kev rau kev txiav txim siab ntawm cov ntsiab lus tooj liab.

GB / t223.26 steel thiab alloy kev txiav txim siab ntawm molybdenum cov ntsiab lus thiocyanate spectrophotometric txoj kev.

GB / t223.40 steel thiab alloy kev txiav txim siab ntawm niobium cov ntsiab lus chlorosulfonol s spectrophotometric txoj kev.

GB / t223.54 txoj kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab alloy cov nplaim atomic absorption spectrometric txoj kev rau kev txiav txim siab ntawm cov ntsiab lus nickel.

GB / t223.58 txoj hauv kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab alloy cov sodium arsenite sodium nitrite titration method rau kev txiav txim siab ntawm manganese cov ntsiab lus.

GB / t223.59 steel thiab alloy kev txiav txim siab ntawm phosphorus cov ntsiab lus bismuth phosphomolybdate xiav spectrophotometry thiab antimony phosphomolybdate xiav spectrophotometry.

GB / t223.68 txoj hauv kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab hlau alloy cov poov tshuaj iodate titrimetric txoj kev rau kev txiav txim siab ntawm leej faj cov ntsiab lus tom qab combustion nyob rau hauv lub tubular rauv.

GB / t223.69 steel thiab alloy kev txiav txim siab ntawm carbon cov ntsiab lus roj volumetric txoj kev tom qab combustion nyob rau hauv tubular rauv.

GB / t223.76 txoj kev rau tshuaj ntsuam xyuas ntawm hlau, hlau thiab alloy cov nplaim atomic absorption spectrometric txoj kev rau kev txiav txim siab ntawm vanadium cov ntsiab lus.GB / t223.78 txoj kev tshuaj ntsuam xyuas ntawm hlau, hlau thiab alloy Cov curcumin ncaj qha photometric txoj kev rau kev txiav txim siab ntawm boron cov ntsiab lus.

GB / t228.1 metallic cov ntaub ntawv tensile xeem Part 1: chav ntsuas kub txoj kev.

GB / t229 metallic cov ntaub ntawv Charpy pendulum impact test method.

GB / t232 xeem txoj kev rau khoov ntawm cov ntaub ntawv hlau.

GB / t247 cov kev cai dav dav rau kev ntim khoom, kos npe thiab daim ntawv pov thawj zoo ntawm steel phaj thiab sawb.

GB / t709 qhov ntev, cov duab, qhov hnyav thiab tso cai sib txawv ntawm kub dov steel phaj thiab sawb.

GB / t2975 steel thiab steel cov khoom - piv txwv qhov chaw thiab kev npaj cov qauv kuaj rau cov khoom siv kho tshuab.

GB / t4336 carbon thiab cov hlau tsis tshua muaj hlau - Kev txiav txim siab ntawm cov ntsiab lus ntau lub ntsiab lus - lub txim hluav taws xob atomic emission spectrometric method (txoj kev niaj hnub).

GB / t4340.1 metallic cov ntaub ntawv Vickers hardness test Part 1: Test method.

GB / t6394 hlau txiav txim siab ntawm qhov nruab nrab grain loj.

GB / T8170 cov cai rau kev sib sau tawm qhov tseem ceeb thiab kev qhia thiab kev txiav txim siab ntawm cov nqi txwv.

GB / t8363 poob hnyav kua muag xeem txoj kev rau ferritic hlau.

GB / t10561 steel - Kev txiav txim siab ntawm cov ntsiab lus tsis yog xim hlau - hloov kho Micrographic txoj kev rau cov qauv.

GB / t13299 ntsuam xyuas txoj kev ntawm microstructure ntawm hlau.

GB / t14977 Cov kev cai dav dav rau qhov zoo ntawm qhov kub dov steel phaj 1.

GB / T21237-2018.

GB / t17505 kev cai dav dav rau steel thiab steel khoom xa tuaj.

GB / t20066 cov qauv ntawm cov qauv thiab cov qauv kev npaj rau kev txiav txim siab ntawm cov tshuaj muaj pes tsawg leeg ntawm cov hlau thiab hlau.

GB / t20123 steel kev txiav txim siab ntawm tag nrho cov pa roj carbon thiab sulfur cov ntsiab lus infrared nqus txoj kev tom qab combustion nyob rau hauv high zaus induction rauv (txoj kev niaj hnub).

GB / t20125 tsis tshua muaj hlau hlau txiav txim siab ntawm ntau lub ntsiab lus inductively txuas nrog ntshav atomic emission spectrometry.

  1. Classification thiab hom sawv cev

3.1Classification

3.1.1 raws li qib zoo:

a) zoo qib 1 (PSL1);

b) zoo qib 2 (PSL2).

Faj seeb: PSL2 suav nrog cov kev xav tau rau cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, toughness, grain loj, non-metallic inclusions, hardness, thiab lwm yam.

3.1.2 los ntawm cov khoom siv:

a) steel rau natural gas kis pipeline;

b) steel rau cov roj av thiab cov khoom siv roj kav;

c) steel rau lwm cov kua hloov welded yeeb nkab.

3.1.3 raws li kev xa khoom:

a) kub dov (R);

b) normalizing thiab normalizing dov (n);

c) kub mechanical dov (m);d) quenching + tempering (q).

3.1.4 raws li ntug xeev:

a) ntug txiav (EC);

b) tsis muaj trimming (EM).

3.2 hom kev sawv cev

3.2.1 steel hom yog tsim los ntawm thawj tsab ntawv Askiv ntawm "kab" sawv cev rau cov kav dej xa mus, cov ntawv teev cov txiaj ntsig tsawg kawg nkaus lub zog ntawm cov yeeb nkab steel thiab cov xwm txheej xa khoom (PSL2 qib zoo nkaus xwb).

ib: l415m.

L - thawj tsab ntawv Askiv sawv cev rau "kab" ntawm cov kav xa dej;

415 - sawv cev rau qhov tsawg kawg nkaus tawm lub zog tus nqi ntawm cov yeeb nkab steel, chav tsev: MPa;

M - sawv cev tias tus txheej txheem xa khoom yog TMCP.

3.2.2 ntxiv rau lub npe nyob rau hauv 3.2.1, lwm lub npe feem ntau siv kuj tau muab rau hauv Table 1.

Cov khoom lag luam muaj "X" sawv cev rau cov raj xa dej, qhov ntsuas qhov tsawg kawg nkaus qhov muaj zog ntawm cov yeeb nkab steel thiab cov xwm txheej xa khoom (PSL2 qib zoo nkaus xwb).

ib: x60m.

X - sawv cev rau cov yeeb nkab steel;

60-txhais tau hais tias qhov tsawg kawg nkaus yield zog tus nqi ntawm cov yeeb nkab steel, chav tsev: Ksi (1ksi = 6.895mpa);

M - sawv cev tias qhov xwm txheej xa khoom yog TMCP.

Nco tseg: qhov tsawg kawg nkaus tawm lub zog tsis suav nrog qib A thiab B.

3.2.3 saib Table 1 rau kev xa khoom thiab hom PSL1 thiab PSL2 steel.

3.2.4 xa mus rau Cov Ntawv Ntxiv A rau cov lus sib piv ntawm cov qauv qauv no thiab cov qauv qauv tsim nyog.


Post lub sij hawm: Aug-31-2021