High-Quality Carbon Steel Pipe Nipples for Industrial Use Cangzhou Hongxin manufactures precision-engineered carbon steel pipe nipples with superior durability and threading accuracy. Our products meet ASTM A53/A106 standards, ensuring reliable performance in high-pressure oil, gas, water, and steam systems.  Key Features High-Grade Carbon Steel – Exceptional strength & corrosion resistance Precision NPT Threading – Leak-proof, secure connections Full Size Range – 1/8″ to 4″ NPT (custom sizes available) SCH 40 & SCH 80 Options – For different pressure requirements Competitive OEM/ODM Service – Custom lengths, coatings, and markings   Cangzhou Hongxin Pipe Nipple Dimension Chart (Standard ASME B36.10)

NPT SIZE	O.D（mm）	Sch40 wall thickness （inch）	Sch40 wall thickness （mm）	Sch80 wall thickness （inch）	Sch80 wall thickness （mm）
1/8	10.3	0.068	1.73	0.095	2.41
1/4	13.7	0.068	1.73	0.095	2.41
3/8	17.1	0.068	1.73	0.095	2.41
1/2	21.3	0.083	2.11	0.109	2.77
3/4	26.7	0.083	2.11	0.113	2.87
1	33.4	0.109	2.77	0.133	3.38
1 1/4	42.2	0.109	2.77	0.14	3.56
1 1/2	48.3	0.109	2.77	0.145	3.68
2	60.3	0.109	2.77	0.154	3.91
2 1/2	73	0.12	3.05	0.164	4.17
3	88.9	0.12	3.05	0.179	4.55
3 1/2	101.6	0.12	3.05	0.203	5.16
4	114.3	0.12	3.05	0.216	5.49
5	141.3	0.134	3.4	0.25	6.35
6	168.3	0.134	3.4	0.28	7.11
8	219.1	0.165	4.19	0.32	8.13
10	273	0.18	4.57	0.375	9.53

  Why Choose Cangzhou Hongxin?   20+ Years of Manufacturing Expertise – Trusted global supplier Strict QC Process – Hydrostatic testing, dimensional checks, threading inspection Export Experience – Regularly ship to USA, Europe, Middle East, and Southeast Asia Factory Direct Pricing – No middlemen, better value    Applications   Oil & Gas Pipelines Fire Protection Systems Power Plant Piping Water Treatment Infrastructure Industrial Machinery