NXF UNS S15700 15-7PH Fe/Cr15/Ni 7/Mo 2.25 DN15-1200 Class 3000-9000 Special Stainless Steel 15-7PH SW Coupling

2026-03-02 16:48 NXF-GROUP

Products Description

15-7PH Introduction

15-7PH, Product Name: 15-7PH (0Cr15Ni7Mo2Al), Product Characteristics: After heat treatment, it has higher hardness and better corrosion resistance. It is a precipitation hardening steel type with copper added. Product Usage: As springs, heat rings,instrument accessories, medical knives, and for oil drilling.

Coupling Introduction

Socket weld coupling is a forged fitting for high-pressure small-bore piping systems. It has socket ends at both sides, allowing two pipes of the same size to be inserted and connected by socket welding. Made of forged carbon steel, stainless steel or alloy steel, it features compact structure, high strength and reliable sealing. It is widely used in petroleum, chemical, power and gas high-pressure pipelines, conforming to GB/T 14383 and ASME B16.11 standards.

Socket-Welding Coupling Drawing

15-7PH Chemical Composition And Mechanical Properties

Specification

item	Coupling
Technic	Other
Connectivity	Welding
shape	Equal
head code	Round
place of origin	China
	Jiangsu
Surface Treatment	Smooth
Mounting hole diameter	0.25 in
Pipe Class	3000
warranty	3 Years
customized support	OEM, ODM, OBM
brand name	NXF
model number	NXF-Cross
Overall Length	3 in
Height	0.7
Pressure	High Pressure
System of Measurement	in
Pipe Features	Flexible, Corrosion-resistant, Chemical Resistant, Uv Resistant, No additional Features, underground rated
Application	plumbing & water supply, natural gas & petroleum industry, oil & gas industry, natural gas transportation, water supply and drainage systems
Product name	Coupling
Material	Special Stainless Steel 15-7PH
OD	DN15-1200
Working Pressure	Class3000-9000
Standard	ASTM BS DIN ISO JIS
MOQ	1 Piece
Application	Industry
Brand	NXF
Package	Wooden Box
Connection method	Socket Welding

Coupling Produce Processing

The main procedures are:
cutting raw round steel → heating and forging → heat treatment → rough machining →

finish machining of socket ends, end faces and sealing surfaces → surface treatment

(sand blasting / anti-rust treatment) → dimensional and hardness inspection →

hydrostatic test → final inspection and warehousing after passing.

Company Profile

New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals, machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories. Established in 1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." Our advantage as follow: 1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price. 2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality. 3. Our biggest advantage is 3S service. Small quantity, short time, special materials.