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Quality Check
 

Quality Control - A Quest for perfection
MSP uses high-tech computer aided testing facilities in all its laboratories to carry all necessary tests accurately ● Size & Shape ● Ovality ● Grain Structure ● Ultimate Strength ● Elongation ● Proof Stress ● Bendability ● Re-Bendability ● Welbablity

Stages of Checking and quality Control at MSP

Receipt and checking of raw materials
The materials received from our Steel Melting Shops are tested for their chemical composition and surface defects. Only the accepted quality is forwarded to the re-heating furnace.

In-process quality checks
During rolling, the temperature of the bar is recorded at the time of entry into the mill till the finishing stand, which ensures rolling at optimum and controlled temperatures.

Product quality check
The finished bars are tested for their chemical composition material and undergo various physical tests like tensile strength, elongation etc. The material is cut as per the standard lengths and bundled for dispatch.

 
COMPARATIVE CHART WITH ISI STANDARD

ISI Standard

MSP Gold TMT standard

Size

Specified weight gm/m

Tolerance limit gm/m

Permissible Wt. variation gm/m

Indv. Sample % Variation

Weight Tolerance gm/m

Weight Variation gm/m

Indv. Sample % Variation

8mm 395

367-423

56

±7

370-402 32 ±4
10mm 617 574-660 86 ±7 578-616 38 ±3
12mm 888 844-932 88 ±5 856-892 36 ±2
16mm 1578 1500-1657 158 ±5 1528-1592 64 ±2
20mm 2470 2396-2544 148 ±3 2435-2485 50 ±1
25mm 3850 3735-3965 230 ±3 3798-3876 78 ±1
32mm 6310 6121-6499 378 ±3 6247-6373 126 ±1
40mm              
MECHANICAL PROPERTIES

Test

ISI Standard

MSP Gold TMT standard

  Fe 415 Fe 500 Fe 550 415 500 550

Yield Strength (0.2% proof test)

415 N/mnČ

500 N/mnČ 550 N/mnČ 480 N/mnČ 530 N/mnČ 575 N/mnČ

Tensile Strength (UTS)

485 N/mnČ 545 N/mnČ 585 N/mnČ 550N/mnČ 600 N/mnČ 660 N/mnČ

% Elongation Min.

14.5%

12%

8%

19% 18% 12%
   

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