API 5L 46th Edition Specification for Line Pipe Scope

ʻO ka wehewehe pōkole:

Ua kuhikuhi ʻia ka hana ʻana o ʻelua pae huahana (PSL1 a me PSL2) o ka paipu kila ʻole a welded no ka hoʻohana ʻana i kahi pipeline i ka lawe ʻana i ka aila a me ke kinoea maoli.No ka hoʻohana ʻana i nā mea i loko o kahi noi lawelawe Sour e nānā i ka Annex H a no ka noi lawelawe ma waho e nānā i ka Annex J o API5L 45th.

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Kūlana Hoʻouna

PSL	Kūlana Hoʻouna	Papa paipu
PSL1	As-rolled, normalized, normalizing formed	A
	E like me ka ʻōwili ʻia, ʻōwili maʻamau, ʻōwili thermomechanical, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered a inā ʻae ʻia Q&T SMLS wale nō.	B
	E like me-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered	X42, X46, X52, X56, X60, X65, X70
PSL 2	As-rolled	BR, X42R
	Normalizing rolled, normalizing formed, normalized or normalized and tempered	BN, X42N, X46N, X52N, X56N, X60N
	Hoʻopiʻi a huhū	BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q
	Hoʻokumu ʻia ka thermomechanical a i ʻole ka thermomechanical	BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M
	Thermomechanical ʻōwili ʻia	X90M, X100M, X120M
	ʻO ka lawa (R, N, Q a i ʻole M) no nā māka PSL2, no ka papa kila

ʻIke Kauoha

ʻO ke kauoha kūʻai e hoʻokomo i ka nui, PSL pae, ʻano a i ʻole Grade, e pili ana i ka API5L, ke anawaena o waho, ka mānoanoa o ka paia, ka lōʻihi a me nā mea hoʻohui a i ʻole nā koi hou e pili ana i ka haku mele, ʻano mechanical, mālama wela, hoʻāʻo hou, kaʻina hana, nā uhi ʻili a i ʻole ka hopena hope.

Kaʻina Hana maʻamau

ʻAno Paipu	PSL 1			PSL 2
ʻAno Paipu	Papa A	Papa B	X42 i X70	B a hiki i ka X80	X80 i X100
SMLS	ü	ü	ü	ü	ü
LFW	ü	ü	ü
HFW	ü	ü	ü	ü
LW			ü
SAWL	ü	ü	ü	ü	ü
SAWH	ü	ü	ü	ü	ü
SMLS - Maikaʻi, ʻaʻohe weld LFW – paipu wiliwili haʻahaʻa haʻahaʻa, <70 kHz HFW – Kiekie alapine welded paipu, >70 kHz SAWL – Hoʻoheheʻe ʻia i loko o ke arc longitudinal welded SAWH – Submerge-arc welding helical welded

Mea Hoomaka

E hana ʻia nā Ingots, blooms, billets, coils a i ʻole nā papa i hoʻohana ʻia no ka hana ʻana i ka paipu e nā kaʻina hana ma lalo nei, ka oxygen kumu, ka umu uila a i ʻole ke ahi hāmama i hui pū ʻia me kahi kaʻina hoʻomaʻemaʻe ladle.No ka PSL2, e pepehi ʻia ke kila a hoʻoheheʻe ʻia e like me ka hana palaoa maikaʻi.ʻAʻole pono e loaʻa i ka wili a i ʻole ka pā i hoʻohana ʻia no ka paipu PSL2 nā welds hoʻoponopono.

Hoʻohui Kemika no ka paipu PSL 1 me t ≤ 0.984″

Papa kila	ʻO ka hakina nui, % e pili ana i ka wela a me nā kānana huahana a,g
Papa kila	C max b	Mn max b	P max	S max	V max	Nb max	Ti max
Paipu Seamless
A	0.22	0.90	0.30	0.30	-	-	-
B	0.28	1.20	0.30	0.30	c,d	c,d	d
X42	0.28	1.30	0.30	0.30	d	d	d
X46	0.28	1.40	0.30	0.30	d	d	d
X52	0.28	1.40	0.30	0.30	d	d	d
X56	0.28	1.40	0.30	0.30	d	d	d
X60	0.28 e	1.40 e	0.30	0.30	f	f	f
X65	0.28 e	1.40 e	0.30	0.30	f	f	f
X70	0.28 e	1.40 e	0.30	0.30	f	f	f
Paipu Weled
A	0.22	0.90	0.30	0.30	-	-	-
B	0.26	1.2	0.30	0.30	c,d	c,d	d
X42	0.26	1.3	0.30	0.30	d	d	d
X46	0.26	1.4	0.30	0.30	d	d	d
X52	0.26	1.4	0.30	0.30	d	d	d
X56	0.26	1.4	0.30	0.30	d	d	d
X60	0.26 e	1.40 e	0.30	0.30	f	f	f
X65	0.26 e	1.45 e	0.30	0.30	f	f	f
X70	0.26e	1.65 e	0.30	0.30	f	f	f
Cu ≤ = 0.50% Ni;≤ 0.50%;Cr ≤ 0.50%;a me Mo ≤ 0.15% No kēlā me kēia hōʻemi o 0.01% ma lalo o ka max.ka manaʻo no ke kalapona, a me ka piʻi ʻana o 0.05% ma luna o ka max max.ʻae ʻia ka hoʻopaʻa ʻana no Mn, a hiki i ka max.o 1.65% no nā māka ≥ B, akā ≤ = X52;a hiki i ka max.o 1.75% no nā māka > X52, akā < X70;a hiki i ka 2.00% kiʻekiʻe loa no X70. Inā ʻaʻole i ʻae ʻia NB + V ≤ 0.06% Nb + V + TI ≤ 0.15% Inā ʻaʻole i ʻae ʻia. Inā ʻaʻole i ʻae ʻia, NB + V = Ti ≤ 0.15% ʻAʻole ʻae ʻia ka hoʻohui ʻana o B a me ke koena B ≤ 0.001%

Hoʻohui Kimia no ka paipu PSL 2 me t ≤ 0.984″

Papa kila	ʻO ka hapa nui, % e pili ana i ka wela a me nā kānana huahana																		Carbon Equiv a
	C max b		Si max		Mn max b		P max		S max		V max		Nb max		Ti max		'ē aʻe		CE IIW max		CE Pcm max
Paipu hili ʻole a me ka wili
BR	0.24		0.40		1.20		0.025		0.015		c		c		0.04		e,l		.043		0.25
X42R	0.24		0.40		1.20		0.025		0.015		0.06		0.05		0.04		e,l		.043		0.25
BN	0.24		0.40		1.20		0.025		0.015		c		c		0.04		e,l		.043		0.25
X42N	0.24		0.40		1.20		0.025		0.015		0.06		0.05		0.04		e,l		.043		0.25
X46N	0.24		0.40		1.40		0.025		0.015		0.07		0.05		0.04		d,e,l		.043		0.25
X52N	0.24		0.45		1.40		0.025		0.015		0.10		0.05		0.04		d,e,l		.043		0.25
X56N	0.24		0.45		1.40		0.025		0.015		0.10f		0.05		0.04		d,e,l		.043		0.25
X60N	0.24f		0.45f		1.40f		0.025		0.015		0.10f		0.05f		0.04f		g,h,l		E like me ka ʻae ʻana
BQ	0.18		0.45		1.40		0.025		0.015		0.05		0.05		0.04		e,l		.043		0.25
X42Q	0.18		0.45		1.40		0.025		0.015		0.05		0.05		0.04		e,l		.043		0.25
X46Q	0.18		0.45		1.40		0.025		0.015		0.05		0.05		0.04		e,l		.043		0.25
X52Q	0.18		0.45		1.50		0.025		0.015		0.05		0.05		0.04		e,l		.043		0.25
X56Q	0.18		0.45f		1.50		0.025		0.015		0.07		0.05		0.04		e,l		.043		0.25
X60Q	0.18f		0.45f		1.70f		0.025		0.015		g		g		g		h,l		.043		0.25
X65Q	0.18f		0.45f		1.70f		0.025		0.015		g		g		g		h,l		.043		0.25
X70Q	0.18f		0.45f		1.80f		0.025		0.015		g		g		g		h,l		.043		0.25
X80Q	0.18f		0.45f		1.90f		0.025		0.015		g		g		g		i, j		E like me ka ʻae ʻana
X90Q	0.16f		0.45f		1.90		0.020		0.010		g		g		g		j,k		E like me ka ʻae ʻana
X100Q	0.16f		0.45f		1.90		0.020		0.010		g		g		g		j,k		E like me ka ʻae ʻana
Paipu Weled
BM		0.22		0.45		1.20		0.025		0.015		0.05		0.05		0.04		e,l		.043	0.25
X42M		0.22		0.45		1.30		0.025		0.015		0.05		0.05		0.04		e,l		.043	0.25
X46M		0.22		0.45		1.30		0.025		0.015		0.05		0.05		0.04		e,l		.043	0.25
X52M		0.22		0.45		1.40		0.025		0.015		d		d		d		e,l		.043	0.25
X56M		0.22		0.45f		1.40		0.025		0.015		d		d		d		e,l		.043	0.25
X60M		0.12f		0.45f		1.60f		0.025		0.015		g		g		g		h,l		.043	0.25
X65M		0.12f		0.45f		1.60f		0.025		0.015		g		g		g		h,l		.043	0.25
X70M		0.12f		0.45f		1.70f		0.025		0.015		g		g		g		h,l		.043	0.25
X80M		0.12f		0.45f		1.85f		0.025		0.015		g		g		g		i, j		.043f	0.25
X90M		0.10		0.55f		2.10f		0.020		0.010		g		g		g		i, j		-	0.25
X100M		0.10		0.55f		2.10f		0.020		0.010		g		g		g		i, j		-	0.25
SMLS t>0.787", e like me ka ʻae ʻana o nā palena CE.Hoʻohana ʻia nā palena CEIIW fi C > 0.12% a pili nā palena CEPcm inā C ≤ 0.12% No kēlā me kēia hōʻemi o 0.01% ma lalo o ka max.ka manaʻo no ke kalapona, a me ka piʻi ʻana o 0.05% ma luna o ka max max.ʻae ʻia ka hoʻopaʻa ʻana no Mn, a hiki i ka max.o 1.65% no nā māka ≥ B, akā ≤ = X52;a hiki i ka max.o 1.75% no nā māka > X52, akā < X70;a hiki i ka 2.00% kiʻekiʻe loa no X70. Inā ʻaʻole i ʻae ʻia Nb = V ≤ 0.06% Nb = V = Ti ≤ 0.15% Inā ʻaʻole i ʻae ʻia, Cu ≤ 0.50%;Ni ≤ 0.30% Cr ≤ 0.30% a me Mo ≤ 0.15% Inā ʻaʻole i ʻae ʻia Inā ʻaʻole i ʻae ʻia, Nb + V + Ti ≤ 0.15% Inā ʻaʻole i ʻae ʻia, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% a me MO ≤ 0.50% Inā ʻaʻole i ʻae ʻia, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% a me MO ≤ 0.50% B ≤ 0.004% Inā ʻaʻole i ʻae ʻia, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% a me MO ≤ 0.80% No nā māka paipu PSL 2 a pau koe nā māka me nā footnote j i ʻike ʻia, pili kēia.Inā ʻaʻole i ʻae ʻia ʻaʻole ʻae ʻia ka hoʻohui ʻana o B a me ke koena B ≤ 0.001%.

Tensile a me ka hua - PSL1 a me PSL2

Papa Paipu	Nā Waiwai Tensile - Kino Paipu o SMLS a me nā Paipu Welded PSL 1			Seam of Welded Paipu
Papa Paipu	Ka ikaika hua a R_t0,5PSI Min	Ka Ikaika a Rm PSI Min	ʻO ka lōʻihi (i loko o 2in Af % min)	Ikaika U'i b Rm PSI Min
A	30,500	48,600	c	48,600
B	35,500	60,200	c	60,200
X42	42,100	60,200	c	60,200
X46	46,400	63,100	c	63,100
X52	52,200	66,700	c	66,700
X56	56,600	71,100	c	71,100
X60	60,200	75,400	c	75,400
X65	65,300	77,500	c	77,500
X70	70,300	82,700	c	82,700
a.No ka papa waena, ʻo ka ʻokoʻa ma waena o ka ikaika tensile haʻahaʻa i ʻōlelo ʻia a me ka hua liʻiliʻi i kuhikuhi ʻia no ke kino paipu e like me ka hāʻawi ʻia no ka papa kiʻekiʻe aʻe. b.No nā papa waena, ʻo ka ikaika tensile liʻiliʻi i ʻōlelo ʻia no ka hili weld e like me ka mea i hoʻoholo ʻia no ke kino me ka hoʻohana ʻana i ka foot note a. c.ʻO ka elongation liʻiliʻi i ʻōlelo ʻia, A_f,i hōʻike ʻia ma ka pākēneka a hoʻopuni ʻia i ka pākēneka kokoke loa, e hoʻoholo ʻia me ka hoʻohana ʻana i ka hoohalike penei: Ma kahi o C he 1 940 no ka helu ʻana me nā ʻāpana Si a me 625 000 no ka helu ʻana me ka hoʻohana ʻana i nā ʻāpana USC A_xcka mea piliʻāpana hoʻāʻo tensile ʻāpana ʻāpana, i hōʻike ʻia ma nā millimeter square (inches square), penei - No nā ʻāpana hoʻāʻo ʻāpana ʻāpana pōʻai, 130mm²(0.20 iniha²) no 12.7 mm (0.500 in) a me 8.9 mm (.350 in) anawaena mau apana hoao;a me 65 mm²(0.10 iniha²) no nā ʻāpana hoʻāʻo 6.4 mm (0.250in) anawaena. - No nā ʻāpana hoʻāʻo piha, ʻoi aku ka liʻiliʻi o a) 485 mm²(0.75 iniha²) a me b) ka ʻāpana keʻa o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ke anawaena o waho i ʻōlelo ʻia a me ka mānoanoa o ka paia o ka paipu, i hoʻopuni ʻia i ka 10 mm kokoke loa.²(0.10in²) - No nā ʻāpana hoʻāʻo huki, ʻoi aku ka liʻiliʻi o a) 485 mm²(0.75 iniha²) a me b) ka ʻāpana cross-sectional o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ka laulā kikoʻī o ka ʻāpana hoʻāʻo a me ka mānoanoa pā o ka paipu, i hoʻopuni ʻia i ka 10 mm kokoke loa.²(0.10in²) ʻO U ka ikaika tensile haʻahaʻa i ʻōlelo ʻia, i hōʻike ʻia ma nā megapascals (paona i kēlā me kēia ʻīniha square)

Papa Paipu	Nā Waiwai Tensile - Kino Paipu o SMLS a me nā Paipu Welded PSL 2						Seam of Welded Paipu
	Ka ikaika hua a R_t0,5PSI Min		Ka Ikaika a Rm PSI Min		ratio a,c R_10,5IR_m	ʻO ka lōʻihi (i loko o 2in) Af %	Ikaika U'i d R_m(psi)
	liʻiliʻi	Ka nui	liʻiliʻi	Ka nui	Ka nui	liʻiliʻi	liʻiliʻi
BR, BN, BQ, BM	35,500	65,300	60,200	95,000	0.93	f	60,200
X42,X42R,X2Q,X42M	42,100	71,800	60,200	95,000	0.93	f	60,200
X46N,X46Q,X46M	46,400	76,100	63,100	95,000	0.93	f	63,100
X52N,X52Q,X52M	52,200	76,900	66,700	110,200	0.93	f	66,700
X56N,X56Q,X56M	56,600	79,000	71,100	110,200	0.93	f	71,100
X60N,X60Q,S60M	60,200	81,900	75,400	110,200	0.93	f	75,400
X65Q,X65M	65,300	87,000	77,600	110,200	0.93	f	76,600
X70Q,X65M	70,300	92,100	82,700	110,200	0.93	f	82,700
X80Q,X80M	80,.500	102,300	90,600	119,700	0.93	f	90,600
a.No ka papa waena, e nānā i ka kikoʻī API5L piha. b.no nā māka > X90 e nānā i ka kikoʻī API5L piha. c.Pili kēia palena no nā pai me D> 12.750 iniha d.No nā māka waena, ʻo ka ikaika uʻi haʻahaʻa i ʻōlelo ʻia no ka hili weld e like ka waiwai me ka mea i hoʻoholo ʻia no ke kino paipu me ka wāwae a. e.no ka paipu e koi ana i ka ho'āʻo longitudinal, ʻo ka nui o ka ikaika o ka hāʻawi ʻana he ≤ 71,800 psi f.ʻO ka elongation liʻiliʻi i ʻōlelo ʻia, A_f,i hōʻike ʻia ma ka pākēneka a hoʻopuni ʻia i ka pākēneka kokoke loa, e hoʻoholo ʻia me ka hoʻohana ʻana i ka hoohalike penei: Ma kahi o C he 1 940 no ka helu ʻana me nā ʻāpana Si a me 625 000 no ka helu ʻana me ka hoʻohana ʻana i nā ʻāpana USC A_xcka mea piliʻāpana hoʻāʻo tensile ʻāpana ʻāpana, i hōʻike ʻia ma nā millimeter square (inches square), penei - No nā ʻāpana hoʻāʻo ʻāpana ʻāpana pōʻai, 130mm²(0.20 iniha²) no 12.7 mm (0.500 in) a me 8.9 mm (.350 in) anawaena mau apana hoao;a me 65 mm²(0.10 iniha²) no nā ʻāpana hoʻāʻo 6.4 mm (0.250in) anawaena. - No nā ʻāpana hoʻāʻo piha, ʻoi aku ka liʻiliʻi o a) 485 mm²(0.75 iniha²) a me b) ka ʻāpana keʻa o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ke anawaena o waho i ʻōlelo ʻia a me ka mānoanoa o ka paia o ka paipu, i hoʻopuni ʻia i ka 10 mm kokoke loa.²(0.10in²) - No nā ʻāpana hoʻāʻo huki, ʻoi aku ka liʻiliʻi o a) 485 mm²(0.75 iniha²) a me b) ka ʻāpana cross-sectional o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ka laulā kikoʻī o ka ʻāpana hoʻāʻo a me ka mānoanoa pā o ka paipu, i hoʻopuni ʻia i ka 10 mm kokoke loa.²(0.10in²) ʻO U ka ikaika tensile haʻahaʻa i ʻōlelo ʻia, i hōʻike ʻia ma nā megapascals (paona no ka ʻīniha square g.Nā waiwai haʻahaʻa no R_10,5IR_mhiki ke hoakakaiama ka aelike h.no nā māka > x90 e nānā i ka kikoʻī API5L piha.

Hoʻāʻo Hydrostatic

Paipu e kū i kahi hoʻāʻo hydrostatic me ka ʻole o ka leaka ma o ka weld seam a i ʻole ke kino paipu.ʻAʻole pono e hoʻāʻo ʻia nā hui hui hydrostatic hāʻawi i nā ʻāpana paipu i hoʻohana pono ʻia.

Ho'āʻo Bend

ʻAʻohe māwae ma kekahi ʻāpana o ka ʻāpana hoʻāʻo a ʻaʻole hiki ke wehe ʻia ka weld.

Ho'āʻo palahalaha

E ʻae ʻia nā pae hoʻohālike no ka hoʻāʻo palahalaha
a)EW paipu D<12.750 in
-≥ X60 me T≥0.500in, ʻaʻole e wehe ʻia ka weld ma mua o ka emi ʻana o ka mamao ma waena o nā papa ma mua o 66% o ke anawaena o waho.No nā papa a me nā paia, 50%.
-No ka paipu me ka D/t> 10, ʻaʻole e wehe ʻia ka weld ma mua o ka emi ʻana o ka mamao ma waena o nā papa ma lalo o 30% o ke anawaena o waho.
b) No nā nui ʻē aʻe e nānā i ka kikoʻī API5L piha

ʻO ka hōʻike hopena CVN no PSL2

Pono ka nui o nā paipu PSL2 a me nā māka i ka CVN.E hoʻāʻo ʻia ka paipu seamless ma ke kino.E ho'āʻo ʻia ka paipu welded ma ke Kino, Pipe Weld a me ka wela wela (HAZ).E nānā i ka kikoʻī API5L piha no ka pakuhi o nā nui a me nā māka a me nā waiwai ikehu e pono ai.

ʻO ka hoʻomanawanui ma waho o ka anawaena, ma waho o ka poepoe a me ka mānoanoa o ka paia

Hōʻike ʻia ma waho anawaena D (i)	Ka hoʻomanawanui anawaena, ʻīniha d				ʻO ka hoʻomanawanui i waho o ka puni
	Paipu koe ka hopena a		Puka paipu a,b,c		Paipu koe ka Hope a	Pauna Paipu a,b,c
	Paipu SMLS	Paipu Weled	Paipu SMLS	Paipu Weled
< 2.375	-0.031 a i + 0.016		- 0.031 a i + 0.016		0.048	0.036
≥2.375 i ka 6.625	+/- 0.0075D		- 0.016 a i + 0.063		0.020D no Ma ka aelike no	0.015D no Ma ka aelike no
>6.625 i ka 24.000	+/- 0.0075D	+/- 0.0075D, akā ka nui o 0.125	+/- 0.005D, akā ka nui o 0.063		0.020D	0.015D
>24 a hiki i 56	+/- 0.01D	+/- 0.005D akā ka nui o 0.160	+/- 0.079	+/- 0.063	0.015D no ka nui o 0.060 No ka mea Ma ka ʻaelike no ka mea	0.01D no ka nui o 0.500 No ka mea Ma ka ʻaelike no ka mea
>56	E like me ka ʻae ʻana
ʻO ka hopena o ka paipu he 4 ka lōʻihi o ka ʻai ʻana i kēlā me kēia o nā ʻāpana paipu No ka paipu SMLS e pili ana ka hoʻomanawanui no t≤0.984in a ʻo nā ʻae no ka paipu mānoanoa e like me ka ʻaelike. No ka paipu ho'onui me D≥8.625in a no ka paipu ho'onui 'ole, hiki ke ho'oholo 'ia ke anawaena a me ka ho'omanawanui o waho me ka ho'ohana 'ana i ke anawaena o loko i helu 'ia a i 'ole 'ia ke anawaena o loko ma mua o ka OD i kuhikuhi 'ia. No ka hoʻoholo ʻana i ka mālama ʻana i ke anawaena, ua wehewehe ʻia ke anawaena paipu e like me ke anapuni o ka paipu i kēlā me kēia mokulele pōʻai i puʻunaue ʻia e Pi.

Mānoanoa pā t iniha	Hoʻomanawanui a iniha
Paipu SMLS b
≤ 0.157	+ 0.024 / – 0.020
> 0.157 a i < 0.948	+ 0.150t / – 0.125t
≥ 0.984	+ 0.146 a i ʻole + 0.1t, ʻoi aku ka nui - 0.120 a i ʻole – 0.1t, ʻoi aku ka nui
Paipu huila c,d
≤ 0.197	+/- 0.020
> 0.197 a i < 0.591	+/- 0.1t
≥ 0.591	+/- 0.060
Inā ʻoi aku ka liʻiliʻi o ka mānoanoa o ka pā ma mua o ke kumu kūʻai i hāʻawi ʻia ma kēia pākaukau, e hoʻonui ʻia ka ʻae ʻana no ka mānoanoa o ka pā e ka nui e mālama ai i ka laulā kūpono. No ka paipu me D≥ 14.000 i loko a me t≥0.984in, hiki ke ʻoi aku ka mānoanoa o ka pā ma ka ʻāina ma mua o ka hoʻohui ʻana no ka mānoanoa o ka pā me ka 0.05t hou aʻe inā ʻaʻole i ʻoi aku ka nui o ka hoʻomanawanui ʻana no ka nuipa. ʻAʻole pili ka ʻae ʻana no ka mānoanoa o ka pā i ka wahi weld E ʻike i ka kikoʻī API5L piha no nā kikoʻī piha