SS400 Steel yog dab tsi?
SS400 yog qib carbon structural steel tau teev tseg hauv Japanese Industrial Standard JIS G3101. Hauv kev xaiv, SS sawv cev rau cov qauv dav hlau dov hlau thiab 400 qhia tias lub zog tensile yam tsawg kawg nkaus ntawm 400 MPa. SS400 steel raj yog tib qib tsim rau hauv cov voj voog, square lossis cov duab plaub hollow seem thiab yog ib qho ntawm cov khoom siv hluav taws xob zoo tshaj plaws. Square thiab rectangular hollow seem ua los ntawm SS400 yog nrov nyob rau hauv lub tsev cov qauv, machinery thav duab, conveyors thiab racking vim hais tias lawv ua ke lub zog kwv yees nrog zoo weldability.
Tshuaj muaj pes tsawg leeg
SS400 yog qhov tseem ceeb ntawm cov pa roj carbon steel nrog me me ntxiv ntawm manganese. Cov kev txwv tshaj tawm tshaj tawm rau SS400 tau teev tseg hauv qab no; cov nqi tiag tiag rau ib yam khoom tshwj xeeb yog tswj hwm los ntawm JIS G3101 thiab tus muag khoom daim ntawv pov thawj zeb.
| Element | Maximum Limit (%) |
|---|---|
| Cov pa roj carbon (C) | 0.21 |
| Manganese (Mn) | 1.60 |
| Phosphorus (P) | 0.050 |
| Sulfur (S) | 0.050 |
Mechanical Properties
Rau cov khoom lag luam tiaj tus thiab cov qauv txheej txheem txog li 16 hli thickness, SS400 muaj qhov tsawg kawg nkaus ntawm 245 MPa thiab lub zog tensile ntawm 400 txog 510 MPa. Elongation yuav tsum nyob ntawm cov khoom daim ntawv thiab thickness, feem ntau yog li ntawm 17% mus rau 23% rau phaj thiab sawb. Rau cov seem hollow, cov khoom siv kho tshuab raug txheeb xyuas los ntawm kev ntsuas tensile ntawm cov raj tiav thiab tau sau rau ntawm daim ntawv pov thawj. Lub zog no suav nrog feem ntau ntawm cov qauv siv dav dav, thiab qib tsis yog tsim rau kev pabcuam siab lossis qis-tej dej kub.
Dimensions thiab Tolerances
SS400 square thiab rectangular raj yog muag nyob rau hauv ntau qhov ntau thiab tsawg. Feem ntau square raj sab ntev li ntawm 20 hli mus rau 400 hli, nrog phab ntsa thicknesses ntawm 1.5 hli mus rau 16 hli. Dimensional tolerances nyob rau sab nraud qhov ntev, phab ntsa thickness thiab straightness ua raws li cov khoom siv los yog cov neeg siv khoom pom zoo specifications, thiab cov tolerances yuav tsum tau paub tseeb hais tias nyob rau hauv lub ordering theem, tshwj xeeb tshaj yog rau raj npaj rau tsis siv neeg vuam los yog precision framing.
Kev kho saum npoo
Bare SS400 tube yog qhov ua rau xeb nyob rau sab nraum zoov lossis chaw ntub dej, yog li kev tiv thaiv kev kho mob ib txwm teev tseg. Kub-dip galvanizing muab kev tiv thaiv zoo tshaj plaws rau cov qauv sab nrauv thiab yog cov qauv xaiv rau sab nraum zoov thav duab thiab laj kab. Painting thiab hmoov txheej yog siv qhov zoo li qhov teeb meem lossis qhov chaw ib puag ncig me me corrosive. Kev xaiv kev kho mob yuav tsum sib npaug ntawm qhov chaw pabcuam, kev cia siab rau lub neej thiab kev siv nyiaj txiag.
Tej kev siv
SS400 steel tube yog siv rau hauv steel tsev thav duab, ru tsev trusses, Hoobkas qauv, chaw ntau pob chaw thav ntawv, tshuab hauv paus, khoom txhawb nqa, conveyor thav ntawv, racks, handrails thiab kev ua liaj ua teb. Rau welded fabrications qib welds yooj yim tsis preheat nyob rau hauv feem ntau seem, uas ua rau fabrication nqi tsawg.
Cov lus nug nquag
SS400 txhais li cas?
SS stands rau cov qauv hlau thiab 400 rau qhov tsawg kawg nkaus tensile lub zog ntawm 400 MPa nyob rau hauv lub JIS G3101 tsim system.
Puas yog SS400 weldable?
Yog lawm. SS400 yog ib qho qis- carbon structural steel nrog zoo weldability siv cov qauv zoo li MMA, MIG thiab TIG yam tsis muaj preheat rau feem ntau qhov ntau thiab tsawg.
Lub zog tawm los ntawm SS400 yog dab tsi?
Qhov tsawg kawg nkaus taw tes yog 245 MPa rau thicknesses txog 16 hli, nrog tensile zog ntawm 400 mus rau 510 MPa.
SS400 puas tuaj yeem siv rau cov kav dej siab?
Tsis yog. SS400 yog qib structural thiab tsis tau teev nyob rau hauv cov txheej txheem siab piping. Siv cov qib siab xws li JIS G3454 STPG370/410 lossis ASTM A106 rau kev pabcuam siab.
Qhov txawv ntawm SS400 thiab Q235 yog dab tsi?
Ob leeg yog cov qauv carbon steels. SS400 yog Japanese JIS G3101 qib nrog 400 MPa yam tsawg kawg nkaus tensile lub zog, thaum Q235 yog Suav GB / T 700 qib nrog 235 MPa yam tsawg kawg nkaus lub zog. Lawv feem ntau raug kho raws li qhov sib npaug ntawm kev siv yooj yim, tab sis kev hloov pauv yuav tsum ua raws li qhov project specification.