cruach carbóin tSín gan uaim agus cóimhiotal feadáin meicniúla Monaróir agus Soláthraí | Óir Sanon
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cruach carbóin gan uaim agus cóimhiotal feadáin meicniúla

Cur síos achomair:

Seamless steel tubes, Carbon steel pipe and alloy mechanical tubes ,mainly for mechanical in ASTM A519-2006 Standard,alloy mechanical tubes mainly include

1018,1026,8620,4130,4140 etc.


  • Payment: 30% deposit, 70% L/C or B/L copy or 100% L/C at sight
  • Min.Order Quantity: 1 PC
  • Supply Ability: Annual 20000 Tons Inventory of Steel Pipe
  • Lead Time: 7-14 days if in stock, 30-45 days to produce
  • Packing: Black Vanishing, bevel and cap for every single pipe; OD below 219mm need to pack in bundle, and each bundle no exceed 2 tons.
  • Sonraigh Táirge

    CC

    Táirge Clibeanna

    Forbhreathnú

    Caighdeán: ASTM A519-2006

    Grúpa Grád: 1018,1026,8620,4130,4140

    Tiús: 1 - 100 mm

    Seachtrach trastomhas (Babhta): 10-1000 mm

    Fad: Seasta fad nó fad randamach

    Rannóg Cruth: Babhta

    Cuir Origin: An tSín

    Deimhniúchán: ISO9001: 2008

     

    Alloy nó nach: Alloy nó Carbóin

    Feidhmchlár: tube Meicniúil

    Dromchla Cóireála: Mar riachtanas an chustaiméara

    Teicníocht: Te Iarchurtha nó Fuar Iarchurtha

    Teas chóireáil: Annealing / Normalú / Fóirithine Strus

    Pipe Speisialta: Tiubh Wall Pipe

    Úsáid: meicniúla

    Tástáil: ECT / UT

    Iarratais

    It Is Mainly Used for mechanical and used to make gas cylinders.include carbon and alloy steel seamless mechanical tubing,and covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3⁄4 in. (323.8 mm) outside diameter for round tubes with wall thicknesses as required.

    príomh Grád

    1018,1026,8620,4130,4140

    Comhpháirt Chemical

    Riachtanais TÁBLA 1 Ceimiceach na Ísealcharbóin steels

    Grád Teorainneacha Comhdhéanamh Cheimiceach,%
    Ainmniú Carbon A mangainéise B Fosfar, B Sulfar, B
        max max
    MT X 1015 0.10-0.20 0.60-0.90 0.04 0.05
    MT 1010 0.05-0.15 0.30-0.60 0.04 0.05
    MT 1015 0.10-0.20 0.30-0.60 0.04 0.05
    MT 1020 0.15-0.25 0.30-0.60 0.04 0.05
    MT X 1020 0.15-0.25 0.70-1.00 0.04 0.05

    B feidhm Teorainneacha le hanailís teasa; ach amháin mar a cheanglaítear le 6.1, tá anailísí táirgí atá faoi réir na tualaingí is infheidhme breise i dTábla 5.

    Riachtanais TÁBLA 2 Ceimiceach na steels Carbóin Eile

    Grád

    Teorainneacha Comhdhéanamh Cheimiceach,%A

    Ainmniú

    Carbon

    mangainéise

    Fosfar,

    Sulfar,

    max

    max

    1008

    0.10 max

    0.30-0.50

    0.040

    0.050

    1010

    0.08-0.13

    0.30-0.60

    0.040

    0.050

    1012

    0.10-0.15

    0.30-0.60

    0.040

    0.050

    1015

    0.13-0.18

    0.30-0.60

    0.040

    0.050

    1016

    0.13-0.18

    0.60-0.90

    0.040

    0.050

    1017

    0.15-0.20

    0.30-0.60

    0.040

    0.050

    1018

    0.15-0.20

    0.60-0.90

    0.040

    0.050

    1019

    0.15-0.20

    0.70-1.00

    0.040

    0.050

    1020

    0.18-0.23

    0.30-0.60

    0.040

    0.050

    1021

    0.18-0.23

    0.60-0.90

    0.040

    0.050

    1022

    0.18-0.23

    0.70-1.00

    0.040

    0.050

    1025

    0.22-0.28

    0.30-0.60

    0.040

    0.050

    1026

    0.22-0.28

    0.60-0.90

    0.040

    0.050

    1030

    0.28-0.34

    0.60-0.90

    0.040

    0.050

    1035

    0.32-0.38

    0.60-0.90

    0.040

    0.050

    1040

    0.37-0.44

    0.60-0.90

    0.040

    0.050

    1045

    0.43-0.50

    0.60-0.90

    0.040

    0.050

    1050

    0.48-0.55

    0.60-0.90

    0.040

    0.050

    1518

    0.15-0.21

    1.10-1.40

    0.040

    0.050

    1524

    0.19-0.25

    1.35-1.65

    0.040

    0.050

    1541

    0.36-0.44

    1.35-1.65

    0.040

    0.050

    A Na raonta agus teorainneacha atá tugtha sa tábla seo maidir le hanailís teasa; ach amháin mar a cheanglaítear le 6.1 , tá anailísí táirgí faoi réir an breise is infheidhme TOLER-Liúntais i dTábla Uimhir 5.

    Riachtanais TÁBLA 3 cheimiceacha do Alloy Steels

    NÓTA

    1-Na raonta agus na teorainneacha sa tábla seo maidir le cruach nach mó ná 200 in. 2(1290 cm 2) i limistéar thrasghearrthach.

    NÓTA

    Tá 2-Small cainníochtaí na n-eilimintí áirithe i láthair in chóimhiotail steels nach bhfuil sonraithe ná áirithe in teastáil. Tá na heilimintí a mheastar mar teagmhasacha

    agus a bheith i láthair leis na méideanna uasta seo a leanas: copar, 0.35%; nicil, 0.25%; cróimiam, 0.20%; molaibdéinim, 0.10%.

    NÓTA

    3-Na raonta agus teorainneacha atá tugtha sa tábla seo maidir le hanailís teasa; eisceadh mar a cheanglaítear le 6.1 , tá anailísí táirgí faoi réir an is infheidhme

    na lamháltais breise i dTábla Uimhir 5.

     

    GrádA , B Teorainneacha Comhdhéanamh Cheimiceach,%
    Designa-
    Carbon mangainéise Phospho- Sulfar, C , D Silicon Nicil Cróimiam Molybde-
    tion
    rus, C max max NUM
    1330 0.28-0.33 1.60-1.90 0.04 0.04 0.15-0.35 ... ... ...
    1335 0.33-0.38 1.60-1.90 0.04 0.04 0.15-0.35 ... ... ...
    1340 0.38-0.43 1.60-1.90 0.04 0.04 0.15-0.35 ... ... ...
    1345 0.43-0.48 1.60-1.90 0.04 0.04 0.15-0.35 ... ... ...
    3140 0.38-0.43 0.70-0.90 0.04 0.04 0.15-0.35 1.10-1.40 0.55-0.75 ...
    E3310 0.08-0.13 0.45-0.60 0.025 0.025 0.15-0.35 3.25-3.75 1.40-1.75 ...
    4012 0.09-0.14 0.75-1.00 0.04 0.04 0.15-0.35 ... ... 0.15-0.25
    4023 0.20-0.25 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.20-0.30
    4024 0.20-0.25 0.70-0.90 0.04 0.035-0.050 0.15-0.35 ... ... 0.20-0.30
    4027 0.25-0.30 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.20-0.30
    4028 0.25-0.30 0.70-0.90 0.04 0.035-0.050 0.15-0.35 ... ... 0.20-0.30
    4037 0.35-0.40 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.20-0.30
    4042 0.40-0.45 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.20-0.30
    4047 0.45-0.50 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.20-0.30
    4063 0.60-0.67 0.75-1.00 0.04 0.04 0.15-0.35 ... ... 0.20-0.30
    4118 0.18-0.23 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.40-0.60 0.08-0.15
    4130 0.28-0.33 0.40-0.60 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4135 0.32-0.39 0.65-0.95 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4137 0.35-0.40 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4140 0.38-0.43 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4142 0.40-0.45 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4145 0.43-0.48 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4147 0.45-0.50 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4150 0.48-0.53 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15-0.25
    4320 0.17-0.22 0.45-0.65 0.04 0.04 0.15-0.35 1.65-2.00 0.40-0.60 0.20-0.30
    4337 0.35-0.40 0.60-0.80 0.04 0.04 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30
    E4337 0.35-0.40 0.65-0.85 0.025 0.025 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30
    4340 0.38-0.43 0.60-0.80 0.04 0.04 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30
    E4340 0.38-0.43 0.65-0.85 0.025 0.025 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30
    4422 0.20-0.25 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.35-0.45
    4427 0.24-0.29 0.70-0.90 0.04 0.04 0.15-0.35 ... ... 0.35-0.45
    4520 0.18-0.23 0.45-0.65 0.04 0.04 0.15-0.35 ... ... 0.45-0.60
    4615 0.13-0.18 0.45-0.65 0.04 0.04 0.15-0.35 1.65-2.00 ... 0.20-0.30
    4617 0.15-0.20 0.45-0.65 0.04 0.04 0.15-0.35 1.65-2.00 ... 0.20-0.30
    4620 0.17-0.22 0.45-0.65 0.04 0.04 0.15-0.35 1.65-2.00 ... 0.20-0.30
    4621 0.18-0.23 0.70-0.90 0.04 0.04 0.15-0.35 1.65-2.00 ... 0.20-0.30
    4718 0.16-0.21 0.70-0.90 0.04 0.04 0.15-0.35 0.90-1.20 0.35-0.55 0.30-0.40
    4720 0.17-0.22 0.50-0.70 0.04 0.04 0.15-0.35 0.90-1.20 0.35-0.55 0.15-0.25
    4815 0.13-0.18 0.40-0.60 0.04 0.04 0.15-0.35 3.25-3.75 ... 0.20-0.30
    4817 0.15-0.20 0.40-0.60 0.04 0.04 0.15-0.35 3.25-3.75 ... 0.20-0.30
    4820 0.18-0.23 0.50-0.70 0.04 0.04 0.15-0.35 3.25-3.75 ... 0.20-0.30
    5015 0.12-0.17 0.30-0.50 0.04 0.04 0.15-0.35 ... 0.30-0.50 ...
    5046 0.43-0.50 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.20-0.35 ...
    5115 0.13-0.18 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    5120 0.17-0.22 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    5130 0.28-0.33 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.80-1.10 ...
    5132 0.30-0.35 0.60-0.80 0.04 0.04 0.15-0.35 ... 0.75-1.00 ...
    5135 0.33-0.38 0.60-0.80 0.04 0.04 0.15-0.35 ... 0.80-1.05 ...
    5140 0.38-0.43 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    5145 0.43-0.48 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    5147 0.46-0.51 0.70-0.95 0.04 0.04 0.15-0.35 ... 0.85-1.15 ...
    5150 0.48-0.53 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    5155 0.51-0.59 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    5160 0.56-0.64 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    52100E 0.93-1.05 0.25-0.45 0.025 0.015 0.15-0.35 0.25 max 1.35-1.60 0.10 max
    E50100 0.98-1.10 0.25-0.45 0.025 0.025 0.15-0.35 ... 0.40-0.60 ...
    E51100 0.98-1.10 0.25-0.45 0.025 0.025 0.15-0.35 ... 0.90-1.15 ...
    E52100 0.98-1.10 0.25-0.45 0.025 0.025 0.15-0.35 ... 1.30-1.60 ...
    cróm
    6118 0.16-0.21 0.50-0.70 0.04 0.04 0.15-0.35 ... 0.50-0.70 0.10-0.15
    6120 0.17-0.22 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.70-0.90 0.10 min
    6150 0.48-0.53 0.70-0.90 0.04 0.04 0.15-0.35 ... 0.80-1.10 0.15 min
    alúmanam Molybdenum
    E7140 0.38-0.43 0.50-0.70 0.025 0.025 0.15-0.40 0.95-1.30 1.40-1.80 0.30-0.40
    Nicil
    8115 0.13-0.18 0.70-0.90 0.04 0.04 0.15-0.35 0.20-0.40 0.30-0.50 0.08-0.15
    8615 0.13-0.18 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8617 0.15-0.20 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8620 0.18-0.23 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8622 0.20-0.25 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8625 0.23-0.28 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8627 0.25-0.30 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8630 0.28-0.33 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8637 0.35-0.40 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8640 0.38-0.43 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8642 0.40-0.45 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8645 0.43-0.48 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8650 0.48-0.53 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8655 0.51-0.59 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8660 0.55-0.65 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    8720 0.18-0.23 0.70-0.90 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30
    8735 0.33-0.38 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30
    8740 0.38-0.43 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30
    8742 0.40-0.45 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30
    8822 0.20-0.25 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.30-0.40
    9255 0.51-0.59 0.60-0.80 0.04 0.04 1.80-2.20 ... 0.60-0.80 ...
    9260 0.56-0.64 0.75-1.00 0.04 0.04 1.80-2.20 ... ... ...
    9262 0.55-0.65 0.75-1.00 0.04 0.04 1.80-2.20 ... 0.25-0.40 ...
    E9310 0.08-0.13 0.45-0.65 0.025 0.025 0.15-0.35 3.00-3.50 1.00-1.40 0.08-0.15
    9840 0.38-0.42 0.70-0.90 0.04 0.04 0.15-0.35 0.85-1.15 0.70-0.90 0.20-0.30
    9850 0.48-0.53 0.70-0.90 0.04 0.04 0.15-0.35 0.85-1.15 0.70-0.90 0.20-0.30
    50B40 0.38-0.42 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.40-0.60 ...
    50B44 0.43-0.48 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.40-0.60 ...
    50B46 0.43-0.50 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.20-0.35 ...
    50B50 0.48-0.53 0.74-1.00 0.04 0.04 0.15-0.35 ... 0.40-0.60 ...
    50B60 0.55-0.65 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.40-0.60 ...
    51B60 0.56-0.64 0.75-1.00 0.04 0.04 0.15-0.35 ... 0.70-0.90 ...
    81B45 0.43-0.48 0.75-1.00 0.04 0.04 0.15-0.35 0.20-0.40 0.35-0.55 0.08-0.15
    86B45 0.43-0.48 0.75-1.00 0.04 0.04 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25
    94B15 0.13-0.18 0.75-1.00 0.04 0.04 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15
    94B17 0.15-0.20 0.75-1.00 0.04 0.04 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15
    94B30 0.28-0.33 0.75-1.00 0.04 0.04 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15
    94B40 0.38-0.43 0.75-1.00 0.04 0.04 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15

    B Gráid thaispeántar sa tábla seo leis an litir B, cosúil le 50B40 is féidir, a bheith ag súil go mbeidh 0.0005% rialaithe íosta bórón.  Grades shown in this table with prefix letter E generally are manufactured by the basic-electric-furnace process. All others are normally manufactured by the basic-open-hearth process but may be manufactured by the basic-electric-furnace process with adjustments in phosphorus and sulfur.

     

    Is iad na teorainneacha fosfar sulfair do gach próiseas:

    foirnéis leictreach Bunúsach 0.025 max% Aigéad foirnéise leictreacha 0.050% max

    teallaigh oscailte Bunúsach 0.040 max% Aigéad teallaigh oscailte 0.050% max

    D íosta agus cion sulfair uasta ann Léiríonn steels resulfurized.

    E Is féidir leis an ceannaitheoir na huasmhéideanna seo a leanas a shonrú: copar, 0.30%; alúmanam, 0.050%; agus ocsaigin, 0.0015%.

     

    Maoin Meicniúil

    Tipiciúla teanntachta Airíonna, Cruas agus Teirmeach Coinníoll do roinnt de na Gráid Níos Coiteann na Carbóin agus Alloy steels

     

     

    CW-Fuar D'oibrigh SR-Strus Scaoileadh A-Annealed N-NormalizedA Is iad seo a leanas na sainmhínithe tsiombail le haghaidh na coinníollacha éagsúla: HR-te Rolle

    Grád leis coinníollacha Ultimate Toradh fadú Rockwell,
    Desig- tion A neart, neart, in 2 in. nó cruas
    náisiún 50 mm,% B Scála
    KSI MPA KSI MPA
    1020 HR 50 345 32 221 25 55
    CW 70 483 60 414 5 75
    SR 65 448 50 345 10 72
    A 48 331 28 193 30 50
    N 55 379 34 234 22 60
    1025 HR 55 379 35 241 25 60
    CW 75 517 65 448 5 80
    SR 70 483 55 379 8 75
    A 53 365 30 207 25 57
    N 55 379 36 248 22 60
    1035 HR 65 448 40 276 20 72
    CW 85 586 75 517 5 88
    SR 75 517 65 448 8 80
    A 60 414 33 228 25 67
    N 65 448 40 276 20 72
    1045 HR 75 517 45 310 15 80
    CW 90 621 80 552 5 90
    SR 80 552 70 483 8 85
    A 65 448 35 241 20 72
    N 75 517 48 331 15 80
    1050 HR 80 552 50 345 10 85
    SR 82 565 70 483 6 86
    A 68 469 38 262 18 74
    N 78 538 50 345 12 82
    1118 HR 50 345 35 241 25 55
    CW 75 517 60 414 5 80
    SR 70 483 55 379 8 75
    A 50 345 30 207 25 55
    N 55 379 35 241 20 60
    1137 HR 70 483 40 276 20 75
    CW 80 552 65 448 5 85
    SR 75 517 60 414 8 80
    A 65 448 35 241 22 72
    N 70 483 43 296 15 75
    4130 HR 90 621 70 483 20 89
    SR 105 724 85 586 10 95
    A 75 517 55 379 30 81
    N 90 621 60 414 20 89
    4140 HR 120 855 90 621 15 100
    SR 120 855 100 689 10 100
    A 80 552 60 414 25 85
    N 120 855 90 621 20 100

    d

    Tolerance

    Outside Diameter Tolerances for Round Hot-Finished TubingA , B, C

     

    Outside Diameter Size Range, Outside Diameter Tolerance, in. (mm)
    in. (mm)

    Over

    Under

    Up to 2.999 (76.17)

    0.020 (0.51)

    0.020 (0.51)

    3.000–4.499 (76.20–114.27)

    0.025 (0.64)

    0.025 (0.64)

    4.500–5.999 (114.30–152.37)

    0.031 (0.79)

    0.031 (0.79)

    6.000–7.499 (152.40–190.47)

    0.037 (0.94)

    0.037 (0.94)

    7.500–8.999 (190.50–228.57)

    0.045 (1.14)

    0.045 (1.14)

    9.000–10.750 (228.60–273.05)

    0.050 (1.27)

    0.050 (1.27)

     

    A Diameter tolerances are not applicable to normalized and tempered or quenched and tempered conditions.

    B The common range of sizes of hot finished tubes is 11⁄2 in. (38.1 mm) to 103⁄4 in. (273.0 mm) outside diameter with wall thickness at least 3 % or more of outside diameter, but not less than 0.095 in. (2.41 mm).

    C Larger sizes are available; consult manufacturer for sizes and tolerances.

     

    Wall Thickness Tolerances for Round Hot-Finished

    Tubing

     

     

    Wall Thickness

    Wall Thickness Tolerance,A  percent Over

    Range as Percent

    and Under Nominal

    of Outside

    Outside

    Outside

    Outside

    Diameter

    Diameter

    Diameter

    Diameter

    2.999 in.

    3.000 in.

    6.000 in.

    (76.19 mm)

    (76.20 mm)

    (152.40 mm)

    and smaller

    to 5.999 in.

    to 10.750 in.

    (152.37 mm)

    (273.05 mm)

    Under 15

    12.5

    10.0

    10.0

    15 and over

    10.0

    7.5

    10.0

    A Wall thickness tolerances may not be applicable to walls 0.199 in. (5.05 mm) and less; consult manufacturer for wall tolerances on such tube sizes.
    a more important dimension, then cold-worked tubing should be specified to inside diameter and wall thickness or outside diameter and inside diameter.
     Rough-Turned Mechanical Tubing—Variation in outside diameter and wall thickness shall not exceed the tolerance in Table. Table  covers tolerances as applied to outside diameter and wall thickness and applies to the specified size.
     Ground Mechanical Tubing—Variation in outside diam-eter shall not exceed the tolerances in Table. This product is normally produced from a cold-worked tube.
     Lengths—Mechanical tubing is commonly furnished in mill lengths, 5 ft (1.5 m) and over. Definite cut lengths are furnished when specified by the purchaser. Length tolerances are shown in Table .
    Straightness—The straightness tolerances for seamless round tubing shall not exceed the amounts shown in Table.

     

    tástáil Riachtanas

    1.Hardness Test
    When hardness limits are required, the manufacturer shall be consulted. Typical hardnesses are listed in Table .When specified, the hardness test shall be performed on 1 % of the tubes.

    2.Tension Tests
    When tensile properties are required, the manufacturer shall be consulted. Typical tensile properties for some of the more common grades and thermal conditions are listed in table.

    3.Nondestructive Tests
    Various types of nondestructive ultrasonic or electromagnetic tests are available. The test to be used and the inspection limits shall be established by manufacturer and purchaser agreement.

    4.Flaring Test
    When there are special requirements for steel cleanliness, the methods of test and limits of acceptance shall be established by manufacturer and purchaser agreement.

    Sonraigh Táirge


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