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| Customization: | Available |
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| Application: | Chemical Industry, Construction Industry, Oil and Gas Industry, Water Treatment Plants |
| Certification: | ISO9001 |
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Application: Used for manufacturing superheated pipelines, the steam pipe, boiling water tube, flue tube, small flue tube, etc.of low, mediam pressure boiler, the general industry boiler.
Out Diameter Torlerances
| Standard | Out Diameter | Tolerance |
| GB3087 | ≤180 | ±1.0%(min: ±0.5mm) |
| GB5310 | ≤50 | ±0.5mm |
| >50 | ±1.0% |
Wall Thickness Tolerances
| Standard | Wall Thickness(mm) | Tolerance |
| GB3087 | 3-20 | +15%,12.5% |
| >20 | ±12.5% | |
| GB5310 | <3.5 | +15%,-10% |
| 3.5-20 | +15%,-10% | |
| >20 | ±10% |
Chemical composition and mechanical properties
| Standard | Grade | Chemical composition(%) | Mechanical properties | ||||||
| C | Si | Mn | P | S | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) | ||
| DIN17175 | St35.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.030 | ≤0.030 | 360-480 | ≥235 | ≥25 |
| St45.8 | ≤0.21 | 0.10-0.35 | 0.40-1.20 | ≤0.030 | ≤0.030 | 410-530 | ≥255 | ≥21 | |
| Item | Details |
| Type | Seamless |
| Standard | ASTM A106.ASME SA106, 5L ,ASTM A53 ,ASME SA53,DIN17175,DIN1629/DIN2448,ASTM A179,ASME SA179,ASTM A192,ASME SA192,ASTM A210,ASME SA210,ASTM A335 BS3059,BS3059 PART II GR.360,440,GR.620-460,GR.622-490,629-470 |
| Grade | B,X42,X46,X52,X56,X60.ASME SA179,ASME SA192,ASME SA210 A1 C ASME SA335-P5,P9,P11,P12,P15,P21,P22,P23,P91,P92. ASME SA213-T2,T5,T9,T11,T12,T17,T21,T22,T23,T24,T36,T91,T92 DIN17175,ST35.8,ST45.8,17MN4,19MN5,15MO3,13CRMO44,10CRMO910,14MOV63 EN10216-1,.P195TR1,P195TR2,P235TR1,P235TR2,P265TR1,P265TR2. EN10216-2,P195GH,P235GH,P265GH,16MO3,25CRMO4 (TC1,TC2) GBT5310,20G.20MNG,25MNG,15MOG,20MOG,12CRMOG,15CRMOG, 12CR2MOG,12CR1MOVG, |
| OD | 17.1-914mm |
| WT | 1.5-100mm |
| Length | 1-12.9m random length,or Fixed length( 5.8m,5.85m,6m.11.8m.12m) |
| Min.Order quantity | We can accept 1 pcs/size if we have stock. |
| Surface | ,Clear oil varnish.or self color |
| Ends | Plain ends,Bevels. |
| Payment term: | TT or LC |
| Package | Bundles or loose |
| Delivery time | Depends on the specific orders,normally 45days |



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