Alloy 625 Pipe

1. Standard: ASTM B444, ASME SB444, ASTM B474, ASME SB474
2. Sizes: 1/2” to 16”
3. Wall thickness: 0.5 - 20mm
4. Length: Single Random, Double Random & Cut Length

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Product Introduction

Alloy 625 pipe is a non-magnetic, corrosion-resistant, oxidation-resistant nickel-chromium-based solid solution hardened wrought high temperature alloy. Inconel 625 is extremely resistant to a variety of exceptionally severe corrosive environments, including high temperature corrosion effects such as carburization and oxidation. Due to the solid solution of refractory Co and Mo in the nickel-chromium matrix, 2.4856 alloy 625 has excellent strength and toughness in the high temperature range down to 2000°F (1093°C).

Nickel 625 Pipe Standard and Supplier:

ASTM B444: Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube

ASTM B474: Standard Specification for Electric Fusion Welded Nickel and Nickel Alloy Pipe

Suppliers: We also offer alloy 625 plates, sheets, tubes, fittings, flanges, bars, forgings, and welding rods.

Alloy 625 Pipe Specifications

Standard and Grades	ASTM B444 UNS N06625
625 Material types	Nickel-Chromium-Molybdenum-Columbium Alloys
Standard	ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB
Manufacturing types	Seamless hot rolled, annealed; Welded
Sizes	1/2" to 16"
Wall thickness	SCH10, SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160
Length	6 meters, 12 meters, or customized.

Alloy 625 Welded Pipes Chemical Structure

Grade		S	C	Cr	Mn	Al-Ti	Si	Fe	Ni
625	min.	–	–	20	–	–	–	–	58
625	max.	0.015	0.1	23	0.5	0.4	0.5	5	–

Advantages of Nickel Alloy 625

Resistant to pitting, crevice and intergranular corrosion;
Resistant to stress corrosion cracking caused by chlorides;
Good corrosion resistance to acids (such as nitric acid, phosphoric acid, sulfuric acid and hydrochloric acid) and alkalis
Good processing and welding properties;
Resistant to stress corrosion in salt spray atmosphere;

Inconel 625 Heat Treatment Two Grades:

Inconel 625 Grade 1 annealed material, for annealed heat-treated N06625 Grade 1 alloy (annealed ≥ 871°C/1600°F), is typically used at service temperatures up to 1100°F (593°C). Nickel 625 has a minimum tensile strength of 827 Mpa (120 ksi), a minimum yield strength of 414 Mpa 60 ksi, and a minimum elongation of 30%.
Inconel 625 Grade 2 solution annealed, TS 690 MPa (100 ksi) minimum, YS 276 MPa (40ksi) minimum, elongation 30% minimum. Nickel 625 pipe is typically used where operating temperatures are above 1100°F (593°C) and creep and fracture resistance are required.