ASTM 304 En1.4301 Stainless Steel Pipe
ASTM 304 En1.4301 Stainless Steel Pipe
ASTM 304 En1.4301 Stainless Steel Pipe
ASTM 304 En1.4301 Stainless Steel Pipe

ASTM 304 En1.4301 Stainless Steel Pipe

304/304H (UNS S30400/S30409) is the most widely used modification of "18-8" chromium nickel austenitic stainless steel. Control the carbon content within the range of 0.04-0.10% to increase strength at temperatures above 800 ° F (427 ° C). It is an economical and versatile corrosion-resistant alloy suitable for a wide range of universal applications.

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Product Introduction

Manufacturing data:
304/304H can be easily welded and processed in standard workshop manufacturing practices.
Cold forming:
This alloy has good ductility and is easy to form. Cold working operations will increase the strength and hardness of the alloy, and may make it slightly magnetic.
Hot forming:
For most hot working processes, it is recommended to operate at a temperature of 1652-2102 ° F (750-1150 ° C). To achieve maximum corrosion resistance, the material should be annealed at least 1900 ° F (1038 ° C) and quenched with water or rapidly cooled by other means after hot working.

304/304H Chemical Composition:
Weight % (all values are maximum unless a range is otherwise indicated)

Element	304	304H
Cr	18.0 - 20.0	18.0 - 20.0
Ni	8.0 - 10	8.0 - 10
C	0.08	0.04 - 0.1
Mn	2.0	2.0
P	0.045	0.045
S	0.03	0.03
Si	0.75	0.75
N	0.1	0.1
Fe	Balance	Balance

304/304H Mechanical Properties:

	Typical	304	304H
0.2% Offset Yield Strength, ksi	43	30 min	30 min
Ultimate Tensile Strength, ksi	91	75 min	75 min
Elongation in 2 inches, %	58	40 min	40 min
Reduction in Area, %	68	--	-
Hardness, Rockwell B	83	92 max	92 max