Amazing Stainless World Pvt. Ltd

Our Process

At Amazing Stainless World Pvt Ltd, we follow the below in-house processes:

Automatic Tube GTA welding

At Amazing Stainless World Pvt Ltd, we use hygienic tubing with 2B cold rolling coil to guarantee full penetration and good welding performance, complying with sanitary tubing requirements.

Bright Annealing

Our on-line bright annealing process involves controlled heating between 1040°C-1080°C followed by cooling with quenching water. We utilize 99.999% pure hydrogen for a high-quality surface finish.

Bead Crush

Our bead crush process removes weld bead lines from both the outside and inside, resulting in a smooth surface and achieving better Surface R.A value as per international standards.

Mechanical Polishing Process Inside & Outside

Our mechanical polishing process ensures welding seam integrity with the base metal after heat treatment, resulting in a visible bright surface. Additionally, it creates a uniform and smooth surface that is easy to clean with no scale.

Electro-Polishing

Our electro polishing process involves significant material removal, resulting in an extremely smooth and glossy surface. This process achieves a quality of Ra ≤ 0.38 μm (15 μin).

Grade	Standard
TP304 / 304L / 1.4307 / 316 / 316L / 316Lcs / 1.4404	ASTM A270 S2 / EN 10217-07 / BS 4825 / ISO / SMS
316Lcs / 1.4404 / 1.4435	ASTM A270 S2 / ASME-BPE / EN 10217-07
TP304 / 304L / 316L / 904L / 1.4539 and duplex material	ASTM A249 / ASTM A688 / ASTM 269 / ASTM 789 / A790
Grade 1 / Grade 2	ASTM B 338

Product Range

OD mm		WT mm/inch		Length mm/feet
Min	12.7	0.5	0.02"	6000	20
Max.	101.6	4.0	0.15"	12000	40

Product Finish Specificaon

Process Designaon	Equivalent to	Surface Treatment		Surface Finish Value (Ra)
		Outer Surface	Inner Surface	µ-in	µ-m
BA - BA	SF0	Bright Annealed	Bright Annealed	-	-
MP - BA	SF3	Mechanical Polished	Bright Annealed	30	0.76
MP - MP	SF2	Mechanical Polished	Mechanical Polished	25	0.64
MP - MP	SF1	Mechanical Polished	Mechanical Polished	20	0.51
MP - EP	SF4	Mechanical Polished	Electro Polished	15	0.38
	SF5			20	0.51
	SF6			25	0.64

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