ন্যাশনাল টিউবস লিঃ বাংলাদেশ ইস্পাত ও প্রকৌশল করপোরেশন (বিএসইসি), শিল্প মন্ত্রণালয়
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সর্ব-শেষ হাল-নাগাদ: ২৫ অক্টোবর ২০১৮

আমাদের উৎপাদিত পণ্য সমূহ

No. Name Of Product Grade of Product Use of Product Technical Specification

Available Size,NB(mm)

Product Image
1. API Pipe API 5L Grade B/ASTM A53 B Used for Gas & Oil Transmission & Distribution line

Chemical composition :

C = 0.26 % Max, Mn = 1.20 % Max, S = 0.030 % Max,  P = 0.030 % Max, Cu ≤  0.50%, Ni≤ 0.50%,Cr ≤ 0.50% and Mo≤0.15% , Unless otherwise agreed, Nb + V ≤ 0.06% , Nb+V+Ti ≤ 0.15 %, No deliberate addition of B is permitted and the residual B ≤0.001%.

Physical properties (Minimum):

Ultimate tensile strength : 42.33 kgf/mm2, Yield strength : 25.0 kgf/mm2,

Elongation : 30 % on a test specimen of 2̋ gauge length   & 0.13 sq. inch cross-section.

200,150,100,

80,50,40,32,

25,20

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2. Marine Grade Pipe

410 HB,

As per

Bureau Veritas Standard , NR216

All type of piping works in Shipbuilding & Marine.

Chemical composition :

C = 0.21 % Max, Mn = 0.4-1.2 % , S = 0.040 % Max,  P = 0.040 % Max, Si=0.35 % Max, Cu ≤  0.25%, Ni≤ 0.30%,Cr ≤ 0.25% and Mo≤0.10% , Nb=0.05 % max and V=0.10 % max .

Physical properties (Minimum):

Ultimate tensile strength : 41.83 kgf/mm2Yield strength : 26.02 kgf/mm2,

Elongation : 22 % 

200,150,100,

80,65,50,40,

32,25,20,15

3. MS Pipe

'A' Class

as per BS-1387 & BDS-1031

All Type of process water,pnumatic &

continious flow piping works.Also used for structural works.

Chemical composition : C = 0.17-0.25%, Mn = 0.95-1.20%, S = 0.06 % Max,  P = 0.06 % Max,

Physical properties (Minimum):

Ultimate tensile strength: 32 kg/mm2, Yield strength: 19.2 kg/mm2, Elongation : 21 % on a test specimen of 2” gauge length   & 0.13 sq. inch cross-section,

100,80,65,

50,40,32,25,

20,15

4. GI Pipe

'A' Class

as per BS-1387, BDS-1031 & BS 729

GI Pipe is widely used in Water supply line. GI pipe is also used in pnumatic & industrial process piping line.

Chemical composition : C = 0.17-0.25%, Mn = 0.95-1.20%, S = 0.06 % Max,  P = 0.06 % Max,

Physical properties (Minimum):

Ultimate tensile strength: 32 kg/mm2Yield strength: 19.2 kg/mm2Elongation : 21 % on a test specimen of 2” gauge length   & 0.13 sq. inch cross-section,

100,80,65,

50,40,32,25,

20,15


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