ASTM A778 Stainless Steel Welded Tubes
ASTM A778 Stainless Steel Welded Tubes
ASTM A778 Stainless Steel Welded Tubes
ASTM A778 Stainless Steel Welded Tubes

ASTM A778 Stainless Steel Welded Tubes

Name: China ASTM A778 Stainless Steel Welded Tubes Suppliers - Wholesale Service - Gnee Super
Brand: GNEE
SKU: 234481338

ASTM A778 316l SS pipe is preferred for use in sea water, marine and in food grade applications. The stainless steel tubes come with different pressure ratings, diameters and sizes. The outer diameter and the wall thickness of the pipes account for the different schedules and pressure ratings. The ASTM A778 tp304l can come in outer diameters ranging from ¼ inches to 60 inches depending on the specification, standards and application requirements. The production type can vary such as the ASTM A778 stainless steel Welded Tubes, seamless tubes, cold drawn or hot rolled tubes. There are also threaded, beveled and plain tubes. The material cannot be annealed or heat treated for hardening.

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Product Introduction

ASTM A778 stainless steel pipe is used in low to moderate temperature applications. The specification is for unannealed, welded stainless steel materials. There are different grades of materials used under this specification. The ASTM A778-304l is one of the most used materials. It is a low carbon variation of the 18/8 chromium nickel stainless steel. The chromium nickel composition provides better corrosion resistance and strength while the less carbon content provides ductility and better welding properties. the ASTM A778 tp316l is a low carbon version of the 316 chromium nickel molybdenum austenitic stainless steel. This has equal strength to the 304L material but with increased corrosion resistance.

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Standard Specification for Welded, Unannealed Austenitic Stainless Steel Tubular

Tube Sizes	3 In (75 mm) To 48 In (1200 Mm) Od – 0.062 In (1.5 Mm) To 0.5 In (12.5 Mm) Wall Thickness
Grades	ASTM A778 TP304L ASTM A778 TP316L ASTM A778 TP317L ASTM A778 TP321 ASTM A778 TP347
Length	10 Ft (3 M) Lengths Or Over.
Length Tolerances	No Tube Shall Be More Than 0.25 In (6 Mm) Over That Specified. No Tube Shall Be Shorter Than Specified.
Straightness	0.25 In (6 Mm) Max Deviation From 10 Ft (3 M) Straight Edge.

ASTM A778 Welded Tubing TolerancesPED approved ASTM A778 Grade 304 Tubing supplier in Mumbai, check available sizes and stock list in India

NPS	OUTSIDE DIAMETER (OD)1				WALL THICKNESS(T)2		OVALITY3 T< 3%OD
NPS	UNDER		OVER		UNDER	OVER	OVALITY3 T< 3%OD
	IN	MM	IN	MM	%	%	%
1/2to 11/2	0.031	0.8	0.015	0.4	12.5	12.5	1.5
>11/2 to 4	0.031	0.8	0.031	0.8	12.5	12.5	1.5
>4 to 8	0.031	0.8	0.062	1.6	12.5	12.5	1.5
>8 to 12	0.031	0.8	0.093	2.4	12.5	12.5	1.5
>12 to 18	0.031	0.8	0.093	2.4	12.5	12.5	1.5
>18 to 26	0.031	0.8	0.125	3.2	12.5	12.5	1.5
>26 to 34	0.031	0.8	0.156	4.0	12.5	12.5	1.5
>34 to 48	0.031	0.8	0.187	4.8	12.5	12.5	1.5

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GNEE Steel Group is China's professional one-stop supply chain enterprise for steel products. Its stainless steel pipe production technology has reached the world's average technical level. It has been recognized by dozens of project companies and has become a star enterprise in Asia.

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