Magnetic Materials
DIN1630 High Performance Seamless Circular Steel Tubes , Black Carbon Steel Pipe
DIN1630 High Performance
Description
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DIN1630 HIGH PERFORMANCE SEAMLESS CIRCULAR UNALLOYED STEEL TUBES
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Specifications:
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Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling
Ends: PE, ends caps
Marking: as per requirement
Delivery Condition: Annealed/Normalized/Tempered
Size:(mm)
? ? ? OD: ≤660mm ????????
?? or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length
Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement
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CHEMICAL COMPOSITION (%):
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CHEMICAL COMPOSITION (CAST ANALYSIS) IN% |
Grade | C≤ | Si≤ | Mn | P≤ | S≤ |
ST 37.4 | 1.0255 | 0.17 | 0.35 | ≥ 0.35 | 0.040 | 0.040 |
ST 44.4 | 1.0257 | 0.20 | 0.35 | ≥ 0.40 | 0.040 | 0.040 |
ST 52.4 | 1.0581 | 0.22 | 0.55 | ≤ 1.60 | 0.040 | 0.035 |
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MECHNICAL PROPERTIES:
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STEEL GRADE | Tensile Strength σb(Mpa) N/mm2 | Yield Strength σs(Mpa) (WT in mm) | Elongation????? δ(%) (L=5do) | IMPACT (DVM—TEST SAMPLE) |
≤16 | ＞16≤40 | ＞40≤65 | L | T | L | T |
(MIN) N/mm2 | % (MIN) | δ (MIN) |
ST 37.4 | 1.0255 | 350-480 | 235 | 225 | 215 | 25 | 23 | 43 | 27 |
ST 44.4 | 1.0257 | 420-550 | 275 | 265 | 255 | 21 | 19 | 43 | 27 |
ST 52.4 | 1.0581 | 500-650 | 355 | 345 | 335 | 21 | 19 | 43 | 27 |
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DIMENSION TOLERANCE:
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OD (mm) | Permissible daviation in OD |
Tube Barrel and tube ends | At tube ends, subject to particular agreement 1) |
≤ 100 | ±1% (value up to ±0.5mm are permitted) | ± 0.4 mm |
100 ? 200 | ±1% | ± 0.5%? |
> 200 | ±1% | ± 0.6% |
Length Tolerance (mm) |
≤6000 | 0 - +10 |
6000
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INSPECTION AND TEST:
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CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening,impact, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.
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Description:
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DIN1630 applies to seamless circular tubes and pipes made of unalloyed steels. These tubes are pradominantly used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purposes. They are designed to meet high performance requirements. Normally, there are no limiting values for the maximum permissible working pressure of these tubes. The permissible working temperature shall not exceed 300℃.
Top quality products
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Applications:
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Mainly used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purposes. And designed to meet high performance requirements, etc.?
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Competitive Advantage:
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Always put quality on first consideration makes us keep our qulity stable and good. Always put customer’s benefit before ours makes our good service and gain us good reputation.
Advanced equipments. Sincere , truth and careful attitude on communication and production.
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CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.
Carbon Steel Seamless Pipe,Seamless Boiler Tubes,Seamless Steel Pipe
Address: INDUSTRIAL ZONE, ZOUQU TOWN, WUJIN DIST., CHANGZHOU CITY, JIANGSU PROV., CHINA,
Changzhou, Jiangsu
China, 213000
Tel: 86-519-83830661
Fax: 86-519-83830662
