There are several types of pipe tempering

Ho latela litlhoko tsa ts'ebetso ea phala ea tšepe ea GB/T9711.1, ho ea ka mocheso o fapaneng oa mocheso, o ka aroloa ka mefuta e latelang ea mocheso:

[1] Mocheso o tlase oa mocheso (150-250 likhato)
The microstructure e fumanoang ka mocheso o tlaase oa mocheso ke martensite ea mocheso.Sepheo sa eona ke ho fokotsa khatello ea maikutlo le brittleness ea tšepe e thata ka lebaka la ho boloka boima ba eona bo phahameng le ho hanyetsa ho apara holimo, e le ho qoba ho senya kapa ho senyeha pele ho nako nakong ea tšebeliso.E sebelisoa haholo-holo bakeng sa mefuta eohle ea lisebelisoa tse phahameng tsa ho itšeha, lisebelisoa tsa ho lekanya, phala ea tšepe ea GB/T9711.1, li-bearings le likarolo tsa carburizing, jj.

[2] Mocheso o itekanetseng oa mocheso (250-500 likhato)
The microstructure e fumanoang ka ho halefa ka mokhoa o itekanetseng ke trostite e futhumetseng.Sepheo ke ho fumana matla a chai a phahameng, moeli oa elastic le boima bo phahameng.Ka hona, e sebelisoa haholo-holo bakeng sa mefuta eohle ea phala ea tšepe ea GB/T9711.1 le kalafo ea hlobo e chesang, ka mor'a ho thatafala ha mocheso hangata ke HRC35-50.

[3] Mocheso o phahameng oa mocheso (500-650 likhato)
The microstructure e fumanoang ka mocheso o phahameng oa mocheso ke tempered sortensite.Hangata, phekolo ea mocheso e kopantsoeng le ho tima le ho futhumatsa e bitsoa quenching le tempering.Morero oa eona ke ho fumana thepa e phethahetseng ea mochini oa matla, boima, polasetiki le ho tiea.Ka hona, e sebelisoa haholo likoloing, phala ea tšepe ea GB/T9711.1, lisebelisoa tsa mochini le likarolo tse ling tsa bohlokoa tsa meralo, joalo ka molamu o kopanyang, bolt, gear le shaft.Ho thatafala ka mor'a ho futhumatsa hangata ke HB200-330.

Standard

API SPEC 5L -- American Petroleum Institute Standard

GB/T9711 -- Tekanyetso ya naha ya China

Lisebelisoa

E sebelisoa bakeng sa phaephe e tsamaisang oksijene, metsi le oli indastering ea peterole le khase ea tlhaho

Tlhahiso e kholo ea limaraka tsa lipeipi tsa tšepe:

B, X42, X52, X60, X65, X70 L245 L290 L320 L360 L390 L450 L485

Thepa ea mechine

Standard	Boemo ba Sehlahisoa	Kereiti ea tšepe	Kotulo Matla (min), Mpa	Tensile Strength (MPa)
API 5L GB/T9711.2	PSL 1	A kapa L210	210	335
		B kapa L245	245	415
		x42 kapa L290	290	415
		X46 kapa L320	320	435
		X52 kapa L360	360	460
		X56 kapa L390	390	490
		X60 kapa L415	415	520
		X70	483	565
	PSL 2	BR kapa L245R	245-450	415~760
		X42R kapa L290R	290-495	415~760
		BN kapa L245N	245-450	415~760
		X42N kapa L290N	290-495	415~760
		X46N kapa L320N	320~525	435~760
		X52N kapa L360N	360~530	460~760
		X56N kapa L390N	390~545	490-760
		X60N kapa L415N	415~565	520~760
		X65N kapa L450N	425~566	525~760
		X70 kapa L480	484~565	565~768
		X80	552~690	621~827

Tafole ea lik'hemik'hale Elements in pipeline

Boemo ba Sehlahisoa	Kereiti ea tšepe	Sebopeho sa Lik'hemik'hale,%
Boemo ba Sehlahisoa	Kereiti ea tšepe	C	Mn	P	S	Le	IN	Nb	Of	CEpcm
PSL 1	B kapa L245	≤0.28	≤1.20	≤0.030	≤0.030	-	-	-	-	-
	x42 kapa L290	≤0.28	≤1.30	≤0.030	≤0.030	-	-	-	-	-
	X46 kapa L320	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X52 kapa L360	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X56 kapa L390	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X60 kapa L415	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X70	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
PSL 2	BR kapa L245R	≤0.24	≤1.20	≤0.025	≤0.015	≤0.40	c	c	≤0.04	≤0.25
	X42R kapa L290R	≤0.24	≤1.20	≤0.025	≤0.015	≤0.40	≤0.06	≤0.05	≤0.04	≤0.25
	BN kapa L245N	≤0.24	≤1.20	≤0.025	≤0.015	≤0.40	c	c	≤0.04	≤0.25
	X42N kapa L290N	≤0.24	≤1.30	≤0.025	≤0.015	≤0.40	≤0.06	≤0.05	≤0.04	≤0.25
	X46N kapa L320N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.40	≤0.07	≤0.05	≤0.04	≤0.25
	X52N kapa L360N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	≤0.25
	X56N kapa L390N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	≤0.25
	X60N kapa L415N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	-
	X65N kapa L450N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	-
	X70N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	-
	X80	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04