Fertilizer specific seamless pipe

High-pressure seamless steel tubes for fertilizer applications are a specialized category of tubular products meticulously engineered to withstand the extreme operating conditions found in the modern fertilizer production industry. These tubes are critical components in the construction of key equipment such as synthesis converters, heat exchangers, condensers, and high-pressure piping systems.

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Detailed Description

Standards:
GB6479 —— China national standards

Uses:
For the Seamless steel pipes for highpressure chemical fertilizer processing equipment
Steel pipes No. of main production:
10、20、16Mn、10MoWVNb、15CrMo、1Cr5Mo、12 Cr2Mo ect.

Dimensional tolerance:

Pipe types	Outer-caliber（D）		Thickness（S）
	Pipe outer-caliber(mm)	Allowable warp(mm)	Pipe thickness(mm)	Allowable warp(mm)
Hot-rolled pipes	＞219	±1.0％	＞20	±10％

Mechanical Properties:

Standards	Steel pipes No.	Tensile strength（MPa）	Bend strength（MPa）	Elongation（％）	Impact energy（J）	Low temperature Impact Akv
GB6479	10	335～490	≥205	≥24	/	－20℃≥18
	20	410～550	≥245	≥24	≥39	－20℃≥18
	16Mn	490～670	≥320	≥21	≥47	－40℃≥21
	10MoWVNb	470～670	≥295	≥19	≥62
	15CrMo	440～640	≥235	≥21	≥47
	1Cr5Mo	390～590	≥195	≥22	≥94
	12 Cr2Mo	450～600	≥280	≥20	≥38

Chemical composition:

Standards	Steel pipes No.	Chemical composition（％）
Standards	Steel pipes No.	C	Si	Mn	P	S	Cr	Mo	Ni
GB 6479	10	0.07～0.14	0.17～0.37	0.35～0.65	≤0.030	≤0.030	/	/	/
	20	0.17～0.24	0.17～0.37	0.35～0.65	≤0.030	≤0.030	/	/	/
	16Mn	0.12～0.20	0.20～0.60	1.20～1.60	≤0.030	≤0.030
	10MoWVNb	0.07～0.13	0.50～0.80	0.50～0.80	≤0.030	≤0.030	/	0.60～0.90	/
	15CrMo	0.12～0.18	0.17～0.37	0.40～0.70	≤0.030	≤0.030	0.80～1.10	0.40～0.55	/
	1Cr5Mo	≤0.15	≤0.50	≤0.60	≤0.030	≤0.030	4.00～6.00	0.45～0.60	≤0.60
	12 Cr2Mo	0.80～0.15	≤0.50	0.40～0.70	≤0.030	≤0.030	2.0～2.50	0.90～1.20

Primary Applications:

Ammonia Synthesis Units: Used in the synthesis loop for high-pressure exchange piping and converter internals.

Urea Synthesis Plants: Ideal for urea reactors, high-pressure condensers, and strippers where resistance to corrosive carbamate solution is paramount.

Methanol Synthesis: Employed in similar high-pressure catalytic conversion processes.

Heat Exchangers and Condensers: Serve as the tubing for transferring heat under high pressure in various critical exchangers.