ASTM A790 PDF gratis

ki sa ki ASTM A790?

ASTM A790 se yon spesifikasyon estanda pou tiyo asye pur feritik / austenitic san pwoblèm ak soude. Tiyo ASTM A790 yo fabrike lè l sèvi avèk pwosesis soude san pwoblèm oswa otomatik san adisyon nan metal filler pandan soude. Analiz tèmik fèt pou detèmine pousantaj eleman espesifye yo. Pou satisfè egzijans espesifye yo, yo mande tès tansyon, tès redi, tès plat, tès idrostatik, ak tès elektrik ki pa -destriktif.

 

Ki klas materyèl pou ASTM A789 Duplex Steel?

Estanda Atik	ASTM A789		ASTM A790		EN 10216-5
Klas	S31803 S32205 S32750		S31803 S32205 S32750		1.4301 1.4307 1.4948 1.4315 1.4401 1.4404 1.4571 1.4541 1.4941 1.4845 1.4449 1.4438 1.4550 1.4912 1.4462 1.4410

 

ASTM A789 Duplex Steel Chimik Konpozisyon

UNS
Deziyasyon	C	Mn	P	S	Si	Ni	Kr	Mo	N	Cu	Lòt moun
S31803	0.030	2.00	0.030	0.020	1.00	4.5–6.5	21.0–23.0	2.5–3.5	0.08–0.20	. . .	. . .
S32205	0.030	2.00	0.030	0.020	1.00	4.5–6.5	22.0–23.0	3.0–3.5	0.14–0.20	. . .	. . .
S32550	0.04	1.50	0.040	0.030	1.00	4.5–6.5	24.0–27.0	2.9–3.9	0.10–0.25	1.50 –2.50	. . .
S32707	0.030	1.50	0.035	0.010	0.50	5.5–9.5	26.0–29.0	4.0–5.0	0.30–0.50	1.0 max	Ko 0.5 –2.0
S32750	0.030	1.20	0.035	0.020	0.80	6.0–8.0	24.0–26.0	3.0–5.0	0.24–0.32	0.50	. . .
S32760	0.030	1.00	0.030	0.010	1.00	6.0–8.0	24.0–26.0	3.0–4.0	0.20–0.30	0.50 –1.00	W 0.50 –1.00

Yon Maksimòm, sof si yo endike yon seri oswa yon minimòm. Kote elips (…) parèt nan tablo sa a, pa gen okenn minimòm epi analiz pou eleman an pa bezwen detèmine oswa rapòte.
B Deziyasyon etabli an akò ak Pratik E527 ak SAE J1086.
C % Cr + 3.3 × % Mo + 16 × % N $ 41.
D % Cr + 3.3 × % Mo + 16 × % N $ 40.

 

Fòs rupture ak kondisyon dite

Klas	Fòs rupture, min., ksi [MPa]	Fòs sede, min., ksi [MPa]	Elongasyon nan 2 pous, oswa 50mm, min, %	Dite, Max Brinell
S31803	90 [620]	65 [450]	25	290
S32205	95 [655]	70 [485]	25	290
S32750	116 [800]	80 [550]	15	310
S32760	109 [750]	80 [550]	25	300
S32950	100 [690]	70 [480]	20	290
S32520	112 [770]	80 [550]	25	310

 

ASTM A789 Duplex Steel OD tolerans

OD Tolerans (mm)	O.D.	ODTlerans	O.D.	ODTlerans	Klas tolerans OD
	D<12.7	+/-0.13	10.3 Mwens pase oswa egal a D Mwens pase oswa egal a 48.3	+0.40/-0.80	D3	+/-0.75% oswa +/-0.3mm
	12.7 Mwens oswa egal a D<38.1	+/-0.13	48.3<>	+0.80/-0.80
					kèlkeswa sa ki pi gwo
	38.1 Mwens oswa egal a D<88.9	+/-0.25	114.3<>	+1.60/-0.80	D4	+/-0.5% oswa +/-0.1mm
	88.9 Mwens oswa egal a D<139.7	+/-0.38	219.1<>	+2.40/-0.80
					kèlkeswa sa ki pi gwo

 

ASTM A789 Duplex Steel WT Tolerans

WT tolerans (mm)	O.D.	WTTolerans	O.D.	WTTolerans	Klas tolerans WT
	D<12.7	+/-15%	10.3 Mwens pase oswa egal a D Mwens pase oswa egal a 73.0	+20.0%/-12.5%	T3	+/-10% oswa +/-0.2mm
	12.7 Mwens oswa egal a D<38.1	+/-10%
			88.9 Mwens pase oswa egal a D Mwens pase oswa egal a 457.0 t/D mwens pase oswa egal a 5%	+22.5%/-12.5%	kèlkeswa sa ki pi gwo
	38.1 Mwens oswa egal a D<88.9	+/-10%			T4	+/-7.5% oswa +/-0.15mm
			88.9 Mwens pase oswa egal a D Mwens pase oswa egal a 457.0 t/D >5%	+15.0%/-12.5%
	88.9 Mwens oswa egal a D<139.7	+/-10%
					kèlkeswa sa ki pi gwo

 

Tretman Chalè

Deziyasyon UNS	Tanperati	Etenn
S31803	1870-2010 degre F [1020-1100 degre]	Rapid refwadisman nan lè oswa dlo
S32205	1870-2010 degre F [1020-1100 degre]	Rapid refwadisman nan lè oswa dlo
S31500	1800-1900 degre F [980-1040 degre]	Rapid refwadisman nan lè oswa dlo
S32750	1880-2060 degre F [1025-1125 degre]	Rapid refwadisman nan lè oswa dlo
S32760	2010-2085 degre F [1100-1140 degre]	Rapid refwadisman nan lè oswa dlo
S32950	1820-1880 degre F [990-1025 degre]	Rapid refwadisman nan dlo
S32520	1975-2050 degre F [1080-1120 degre]	Rapid refwadisman nan lè oswa dlo

 

ASTM A789 Duplex Steel ydrostatik Tès

Tès idrostatik	Tès idrostatik la dwe an akò ak ASTM A1016. Te kapab ranplase pa ECT.		Tès idrostatik la dwe an akò ak ASTM A999. Te kapab ranplase pa ECT.		Tès idrostatik la dwe fèt nan yon presyon tès 7MPa oswa nan yon presyon tès kalkile ak fòmil sa a P=2St/DS=70%Rp0.2
Tès Kowozyon Intergranular	Anjeneral itilize Pitting Kowozyon Tès.		Anjeneral itilize Pitting Kowozyon Tès.		EN ISO 3651-2 (Si ou vle)
Tès aktyèl Eddy	Kapab ranplase pa HT.		Kapab ranplase pa HT.		EN 10246-3

 

Ki diferans ki genyen ant ASTM A928 ak A790?
ASTM A790 presize eleman ak kondisyon pou fabrike tiyo san pwoblèm ak soude, pandan y ap ASTM A928 kouvri sèlman tiyo fizyon elektrik soude. ASTM A790 mande pou tiyo asye duplex ak super duplex dwe soude san yo pa ajoute nenpòt metal filler.