zhengjiang Luomeisha Leather Product Co., Ltd.

zhengjiang Luomeisha Leather Product Co., Ltd.
Runhe Industry Company Limited is Zhenjiang Luomeisha Leather Products' branch export company in shanghai. Zhenjiang Luomeisha is founded in 1992 , mainly produce genuine leather wallets and sheepskin shoes. Now we can produce 20000 pcs wallets and 30000 pairs' shoes per month. All our products are exported to Euorpe and Korea. We are authorized factory for SAMSONITE and...    Read more

BS 3059-2 Gr 440 Seamless Carbon Steel Boiler Tubes

No. TEN5587419

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BS 3059-2 Gr 440 Seamless Carbon Steel Boiler Tubes
  • ( Total: 0)
  • 2010-10-08
  • 2010-10-15
  • Bulk
  • FOB
  • Negotiable
Brief Description
BS 3059 PART 2: STEEL BOILER AND SUPERHEATER TUBES CARBON ALLOY AND AUSTENITIC STAINLESS STEEL TUBES WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIESO.D: 125mm MAXO.D tolerance of S2 :±0.75% , ±0.30mm minW.T: 12.5mm MAXW.T. tolerance of S
Product Attributes

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Detailed Description

BS 3059 PART 2: STEEL BOILER AND SUPERHEATER TUBES CARBON ALLOY AND AUSTENITIC STAINLESS STEEL TUBES WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIES

 

O.D: 125mm MAX

O.D tolerance of S2 :±0.75% , ±0.30mm min

W.T: 12.5mm MAX

W.T. tolerance of S2 :±10%

Length Tolerance: Length ≤6 M : +3mm,-0mm.

6 M≤Length≤9 M: +4.5mm,-0mm.

9 M≤Length≤12 M: +6mm,-0mm.

 

Chemical Composition:

Grade

C

Si

Mn

P

S

Cr

Mo

Ni

 

360

≤0.17

0.10-0.35

0.40-0.80

≤0.035

≤0.035

 

 

 

 

440

0.12-0.18

0.10-0.35

0.90-1.20

≤0.035

≤0.035

 

 

 

 

243

0.12-0.20

0.10-0.35

0.40-0.80

≤0.035

≤0.035

 

0.25-0.35

 

 

620-460

0.10-0.15

0.10-0.35

0.40-0.70

≤0.030

≤0.030

0.7-1.1

0.45-0.65

 

 

622-490

0.08-0.15

≤0.50

0.40-0.70

≤0.030

≤0.030

2.0-2.5

0.90-1.20

 

 

629-470

≤0.15

0.25-1.00

0.30-0.60

≤0.030

≤0.030

8-10

0.90-1.10

 

 

629-590

762

0.17-0.23

≤0.50

≤1.00

≤0.030

≤0.030

10-12.5

0.80-1.20

0.2-0.8

 

 

Mechanical Properties:

Grade

Tensile (MPa)

Yield(MPa)

Elongation %

360

360—550

≥235

≥24

440

440—580

≥245

≥21

243

480—630

≥275

≥22

620-460

460—610

≥180

≥22

622-490

490—640

≥275

≥20

629-470

470—620

≥185

≥20

629-590

590--740

≥400

≥18

762

720--870

≥470

≥15

 

Test item: tensile test , flattening test , flaring test ( expansion test)

 

Heat Treatment: For cold drawn steel tubes

Grade

Delivery Condition

Heat Treatment Temperature °c

360,440

Normalized

880-940

243

Normalized

900-960

620-460

Normalized

900-960

622-490

Normalized and Tempered

900-960 Normalized 680-750Tempered

629-470

Annealed

850-950

629-590

Normalized and Tempered

900-1000 Normalized  700-800 Tempered

762

Normalized and Tempered

1020-1070 Normalized  730-780 Tempered

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