ASTM A 500 - Tianjin Lefin Industrial Co., Ltd.

ASTM A500 tus qauv yog North American specification uas npog cov kev cai rau txias - tsim welded thiab seamless carbon steel structural tubing nyob rau hauv round, square, thiab rectangular duab. Cov qauv no tau siv dav hauv Tebchaws Meskas thiab lwm thaj chaw raws li ASTM cov qauv, tshwj xeeb hauv kev tsim kho, kev tsim vaj tsev, kev tsim khoom, thiab kev siv cov qauv siv dav dav. ASTM A500 tubing paub txog nws lub zog zoo heev, weldability, thiab nqi -kev ua tau zoo.

ASTM A500 tau muab faib ua cov ntu tseem ceeb hauv qab no:

ASTM A500 - Txheem Specification rau Txias -Tsim Welded thiab Seamless Carbon Steel Structural Tubing nyob rau hauv Rounds thiab Shapes

Cov txheej txheem no qhia txog cov kev xav tau rau cov qauv tubing uas tsim los ntawm cov pa roj carbon steel thiab tsim ntawm qhov kub thiab txias, feem ntau tsis muaj kev kho cua sov tom qab. Nws suav nrog cov khoom siv, tshuaj lom neeg muaj pes tsawg leeg, kev ua haujlwm txhua yam, thiab qhov ntev ntev.

Yog tias koj ua haujlwm nrog square, duab plaub, lossis puag ncig hollow structural seem (HSS), tshwj xeeb tshaj yog nyob rau hauv North American kev tsim kho lossis engineering tej yaam num, nkag siab txog ASTM A500 yog qhov tseem ceeb los xyuas kom meej kev ua tau zoo, zoo, thiab kev ncaj ncees.

ASTM A500 Cov Qauv Tubing Specification
Txuj	ASTM A500 1
Txheej txheem	ERW, SMLS, SSAW, LSAW
Qhov ntev	13.7mm-2235mm
	1/4″ – 88″
	DN8 - DN400
Thickness	1.65mm-25.4 hli
	SCH 5S -SCH XXS
Unit Length	1.5-18 hli
Qib Steel	ASTM A500 Gr. A	ASTM A500 Gr. C
	ASTM A500 Gr. B	ASTM A500 Gr. D
Nto Txheej	Varnishing, Dub, Oiling, Kub Dip Galvanizing
Hom kawg	Square txiav, Bevelled, Threaded, Grooved
Txoj Kev Sib Koom	Haum, Flange, Coupling, Clamp, Yeeb Nkab Lub xub pwg, Vuam
Pipe Machining	Vuam, dabtsi yog khoov, qhov Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A500 Scope ntawm daim ntawv thov

ASTM A500 npog txias- ua welded thiab seamless carbon steel tubing siv nyob rau hauv cov ntaub ntawv siv. Nws siv rau puag ncig, square, thiab duab plaub thiab qhia txog cov kev xav tau ntawm cov qib steel, cov khoom siv kho tshuab, thiab kev kam rau siab. Cov tubing feem ntau yog siv rau hauv cov tsev, txuas hniav, yees, thiab ntau yam kev thauj khoom -cov kabmob.

Cov qauv no feem ntau hais txog cov qauv tsim qauv xws li AISC Steel Siv Phau Ntawv Qhia thiab feem ntau xav tau rau cov haujlwm hauv Tebchaws Meskas thiab Canada.

Steel Qib hauv ASTM A500

ASTM A500 txhais tau ntau qib ntawm cov hlau raws li cov khoom siv kho tshuab. Cov qhab nia uas feem ntau teev tseg yog:

Qib A

Tsawg zog, haum rau kev thov tsawg dua

Qib B

Feem ntau siv qib, muab qhov zoo sib npaug ntawm lub zog thiab formability

Qib C

Lub zog siab dua, siv rau hauv daim ntawv thov uas xav tau ntau dua load-cov kabmob muaj peev xwm

Qib D

Feem ntau xav tau rau kev siv seamless tubing

Piv txwv li:ASTM A500 Qib B

ASTM A500 1

Standard specification

Qib B

Yam tsawg kawg nkaus yield zog ntawm 46,000 psi (315 MPa) rau round tubing thiab 50,000 psi (340 MPa) rau zoo li tus tubing

Chemical Composition Requirements (los ntawm kev ntsuas kub)

Peb cov ASTM A500 hollow profiles ua raws li cov cai nruj heev thiab muaj cov carbon, manganese, phosphorus, sulfur thiab tooj liab. Xyuas kom meej tias cov tshuaj muaj pes tsawg leeg ntawm cov khoom ua tau raws li ASTM A500 cov qauv los xyuas kom meej nws lub zog thiab kav ntev.

Kev xav tau tshuaj
Lub ntsiab	Kev sib xyaw,%
	Qib B thiab D		Qib C
	Kub	Khoom	Kub	Khoom
	Kev tsom xam	Kev tsom xam	Kev tsom xam	Kev tsom xam
Cov pa roj carbon, maxA	0.26	0.3	0.23	0.27
Manganese, maxA	1.35	1.4	1.35	1.4
Phosphorus, max	0.035	0.045	0.035	0.045
Sulfur, max	0.035	0.045	0.035	0.045
tooj, minB	0.2	0.18	0.2	0.18
A Rau txhua qhov txo qis ntawm 0.01 feem pua ntawm cov ntsiab lus qis tshaj qhov tshwj xeeb tshaj plaws rau cov pa roj carbon, qhov nce ntawm 0.06 feem pua ntawm cov ntsiab lus siab tshaj qhov tshwj xeeb tshaj plaws rau manganese tau tso cai, mus txog qhov siab tshaj ntawm 1.50% los ntawm kev ntsuas kub thiab 1.60% los ntawm kev tshuaj xyuas khoom. B Yog tias tooj liab- muaj cov hlau yog qhia hauv daim ntawv xaj yuav khoom.

Mechanical Properties

Cov khoom siv kho tshuab ntawm LEFIN's ASTM A500 hollow profiles yog tsim los ua raws li ASTM cov qauv. Round, square, rectangular, thiab tshwj xeeb tubular duab qhia tau hais tias superior mechanical zog, xws li yield zog thiab elongation.

Tensile Requirements
Round, Square, Rectangular, thiab Tshwj Xeeb Tubular Shapes
	Qib B	Qib C	Qib D
Tensile zog, min, psi [MPa]	58 000	62 000	58 000
Tensile zog, min, psi [MPa]	[400]	[425]	[400]
Yield zog, min, psi [MPa]	46 000	50 000	36 000
Yield zog, min, psi [MPa]	[315]	[345]	[250]
Elongation hauv 2 nti. [50 mm], min, %C	23A	21B	23A
A Siv rau qhov tshwj xeeb phab ntsa thicknesses (t ) sib npaug los yog ntau dua 0. 180 nyob rau hauv. [4.57mm]. Rau qhov sib zog tshwj xeeb phab ntsa thicknesses, qhov tsawg kawg nkaus elongation qhov tseem ceeb yuav tsum tau xam los ntawm cov mis: feem pua elongation nyob rau hauv 2 in. [50 mm]=61t + 12, sib npaug mus rau qhov ze feem pua. Rau A500M siv cov qauv hauv qab no: 2.4t + 12, sib npaug mus rau qhov ze tshaj plaws.
B Siv rau qhov tshwj xeeb phab ntsa thicknesses (t ) sib npaug los yog ntau dua 0. 120 nyob rau hauv. [3.05mm]. Rau qhov sib zog tshwj xeeb phab ntsa thicknesses, qhov tsawg kawg nkaus elongation qhov tseem ceeb yuav tsum tau pom zoo nrog cov chaw tsim khoom. C Qhov tsawg kawg nkaus elongation qhov tseem ceeb tshwj xeeb tsuas yog siv rau cov kev ntsuam xyuas ua ntej xa cov tubing.

Dimensional Tolerances

Tolerances rau ASTM A500 structural tubing yog teev nyob rau hauv tus qauv thiab txawv ntawm cov duab thiab loj. Yam tseem ceeb ntawm kev kam rau siab muaj xws li:

Sab nraud txoj kab uas hla (rau round tubing)

Dav thiab qhov tob (rau square thiab rectangular tubing)

Phab ntsa thickness

Kev ncaj

Mass ib unit ntev

Corner radii (rau square thiab rectangular seem)

Cov kev tolerances no ua kom zoo sib xws thiab haum- nyob rau hauv cov qauv kev sib dhos thiab tseem ceeb heev rau kev tsim thiab tsim.

Dimension kam rau ua
Sau npe	Ua siab ntev		Cov duab
Sab nraud	>2 hauv [50 mm]	±1%	tag nrho
	Tsawg dua los yog sib npaug li 2 hauv [50 mm]	± 1/48 hauv [0.50 mm]
Phab ntsa Thickness	-10 %		tag nrho
Qhov hnyav	-3.5 %-+10%		tag nrho
Ntev (L)	Tsawg dua los yog sib npaug li 7m [22 ft]	-1/4 nyob rau hauv -+1/2 nyob rau hauv [-6 mm-+13 mm]	tag nrho
	7-14 m [22-44ft]	-1/4 nyob rau hauv -+3/4 nyob rau hauv [-6mm-+19 mm]
Kev ncaj	Lengths (L) yog ft: L / 40 (Qhov tshwm sim hauv nti); Lengths (L) yog m: 2L (Qhov tshwm sim hauv mm);		tag nrho
Squareness ntawm Sab	± 1 degree		square thiab rectangular
Radius ntawm Corners	txhua lub ces kaum sab nraud ntawm ntu yuav tsum tsis pub tshaj ob npaug ntawm teev phab ntsa thickness.		square, duab plaub, thiab tshwj xeeb cov duab
Twist	tsis txawv ntau tshaj 1/12 hauv [2.1 mm] ntxiv rau 1/144 in/ft [0.5mm/m]		square, duab plaub, thiab tshwj xeeb cov duab
Concavity thiab convexity	1% los ntawm sab nraud		square, rectangular, thiab sped cov duab

ASTM A500 Pipe Dimensions thiab Specifications Tables

Qhov ntau thiab tsawg rau ASTM A500 structural tubing muaj xws li:

Round HSS: 1.315 "OD rau 12.75" OD thiab loj dua

Square HSS: 1 "x 1" txog 12" x 12" thiab loj dua

Rectangular HSS: 2 "x 1" txog 20" x 12" thiab loj dua

Phab ntsa thicknesses li ntawm 0.065 "mus rau 0.625" nyob ntawm qhov loj thiab daim ntawv thov

Nominal Pipe Loj		Sab nraud txoj kab uas hla (mm)	Nominal Phab Ntsa Thickness Schedule
NPS	DN	OD	SCH 5	SCH 10	SCH 20	SCH 30	SCH Sth	SCH 40	SCH 60	SCH XS	SCH 80	SCH 100	SCH 120	TIAB SA 140
1月8日	6	10.3		1.24		1.45	1.73	1.73		2.41	2.41
1月4日	8	13.7		1.65		1.85	2.24	2.24		3.02	3.02
3月8日	10	17.1		1.65		1.85	2.31	2.31		3.2	3.2
1月2日	15	21.3	1.65	2.11		2.41	2.77	2.77		3.73	3.73
3月4日	20	26.7	1.65	2.11		2.41	2.87	2.87		3.91	3.91
1	25	33.4	1.65	2.77		2.9	3.38	3.38		4.55	4.55
1 1/4	32	42.2	1.65	2.77		2.97	3.56	3.56		4.85	4.85
1 1/2	40	48.3	1.65	2.77		3.18	3.68	3.68		5.08	5.08
2	50	60.3	1.65	2.77		3.18	3.91	3.91		5.54	5.54
2 1/2	65	73	2.11	3.05		4.78	5.16	5.16		7.01	7.01
3	80	88.9	2.11	3.05		4.78	5.49	5.49		7.62	7.62
3 1/2	90	101.6	2.11	3.05		4.78	5.74	5.74		8.08	8.08
4	100	114.3	2.11	3.05		4.78	6.02	6.02		8.56	8.56		11.13
5	125	141.3	2.77	3.4			6.55	6.55		9.53	9.53		12.7
6	150	168.3	2.77	3.4			7.11	7.11		10.97	10.97		14.27
8	200	219.1	2.77	3.76	6.35	7.04	8.18	8.18	10.31	12.7	12.7	15.09	18.26	20.62
10	250	273	3.4	4.19	6.35	7.8	9.27	9.27	12.7	12.7	15.09	18.26	21.44	25.4
12	300	323.8	3.96	4.57	6.35	8.38	9.53	10.31	14.27	12.7	17.48	21.44	25.4
14	350	355.6	3.96	6.35	7.92	9.53	9.53	11.13	15.09	12.7	19.05	23.83
16	400	406.4	4.19	6.35	7.92	9.53	9.53	12.7	16.66	12.7	21.44
18	450	457	4.19	6.35	7.92	11.13	9.53	14.27	19.05	12.7	23.83
20	500	508	4.78	6.35	9.53	12.7	9.53	15.09	20.62	12.7
22	550	559	4.78	6.35	9.53	12.7	9.53		22.23	12.7
24	600	610	5.54	6.35	9.53	14.27	9.53	17.48	24.61	12.7
26	650	660		7.92	12.7		9.53			12.7
28	700	711		7.92	12.7	15.88	9.53			12.7
30	750	762	6.35	7.92	12.7	15.88	9.53			12.7
32	800	813		7.92	12.7	15.88	9.53	17.48		12.7
34	850	864		7.92	12.7	15.88	9.53	17.48		12.7
36	900	914		7.92	12.7	15.88	9.53	19.05		12.7
38	950	965					9.53			12.7
40	1000	1016					9.53			12.7
42	1050	1067					9.53			12.7
44	1100	1118					9.53			12.7
46	1150	1168					9.53			12.7
48	1200	1219					9.53			12.7

Nominal Pipe Loj		Sab nraud txoj kab uas hla (mm)	Nominal Phab Ntsa Thickness
NPS	DN	OD	Nominal Phab Ntsa Thickness
52	1300	1321	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
56	1400	1422	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
60	1500	1524	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
64	1600	1626	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
68	1700	1727	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
72	1800	1829					12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
76	1900	1930					12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
80	2000	2032						14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
84		2134
88		2235

Square Hollow Tshooj
Thickness: 1.000 in. [25.4 mm] lossis tsawg dua
Loj (mm)
20 x 20	80 x 80	180 x 180
25 x 25	90 x 90	200 x 200
30 x 30	100 x 100	225 x 225
38 x 38	110 x 110	240 x 240
40 x 40	120 x 120	250 x 250
50 x 50	125 x 125	300 x 300
60 x 60	130 x 130	350 x 350
65 x 65	140 x 140	400 x 400
70 x 70	150 x 150	450 x 450
75 x 75	160 x 160	500 x 500

Rectangular Hollow Section Thickness: 1.000 in. [25.4 mm] lossis tsawg dua
Loj (mm)
20 x 30	120 x 40	250 x 75
40 x 20	120 x 50	250 x 100
40 x 25	120 x 60	250 x 150
40 x 30	120 x 80	250 x 200
50 x 25	120 x 100	300 x 100
50 x 30	140 x 60	300 x 150
50 x 40	140 x 80	300 x 180
60 x 30	150 x 50	300 x 200
60 x 40	150 x 75	400 x 200
70 x 50	150 x 100	400 x 300
80 x 40	160 x 60	400 x 350
80 x 50	160 x 80	450 x 250
80 x 60	180 x 120	500 x 200
90 x 60	180 x 140	500 x 300
100 x 40	200 x 50	500 x 400
100 x 50	200 x 60	600 x 200
100 x 60	200 x 80	600 x 300
100 x 80	200 x 100	600 x 400

LEFIN STEEL - Koj Trusted Partner for High -Quality Steel Tubes thiab Pipes