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High Pressure Unalloyed Carbon Steel Seamless Tube , Heat Temperature Resistant

Categories Carbon Steel Seamless Tube
Brand Name: CHANGZHOU RUIYUAN
Certification: ISO9001, ISO14001, PED, OHSAS 18001
Place of Origin: JIANGSU, CHINA
MOQ: 0.3 MT
Payment Terms: T/T, L/C, D/P, CASH, D/A, Western Union
Supply Ability: 6000MT/Month
Delivery Time: 20~30 days after order
Packaging Details: Ends caps, Hexagonal Bundles with steel strips and plastic bags wrapping outside/Wooden box/Steel frame/Or as per client’s requirement.
STANDARD: DIN
SHAPE: ROUND
CERTIFICATE: PED, ISO9001, ISO14001, OHSAS 18001
PLACE OF ORIGIN: JIANGSU, CHINA
SECONDARY OR NOT: BRAND NEW
PROCESSING: SEAMLESS
SURFACE: BARE, OIL, VARNISH, BLACK
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High Pressure Unalloyed Carbon Steel Seamless Tube , Heat Temperature Resistant

High Pressure Unalloyed Carbon Steel Seamless Tube , Heat Temperature Resistant


Specifications:


Surface Treatment:

Bare/Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling or as per required

Ends: PE, ends caps

Marking: as per requirement

Delivery Condition: Annealed/Normalized/Tempered

Size:(mm)
OD: 16~90mm WT: 1.5-12

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


CHEMICAL COMPOSITION (%):


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


MECHNICAL PROPERTIES:


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


DIMENSION TOLERANCE:


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<L≤12000

0 - +15

>12000

By Agreement


INSPECTION AND TEST:


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.


Description:


DIN1630 is a kind of high performance, seamless circular tubes, made of unalloyed steels, which containes three steel grade: ST37.4, ST44.4, ST52.4.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℃.


Applications:


1. construction of chemical plant

2. vessels

3. pipework

4. for general mechanical engineering purposes


Competitive Advantage:


1. Very competitive price with best quality

2. Best service: we take the whole responsiblity of our products and service. On-time delivery. Quality gurantee. etc.

3. Advanced equipment and continuesly developing technology.


Quality High Pressure Unalloyed Carbon Steel Seamless Tube , Heat Temperature Resistant for sale
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