Online Exporter Round Pipe - Seamlless steel tubes for high-pressure chemical fertilizer processing equipments-GB6479-2013 – Sanonpipe

Product Detail

Overview

Application

Seamless steel pipe for high pressure fertilizer equipment is a high quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipeline.

Main Grade

Grade of high-quality carbon structural steel: 10#、20#

Chemical Component

Chemical Component/%
NO	C	Si	Mn	Cr	Mo	V	W	Nb	Ni	P S
										no more than
10	0. 07-0. 13	0. 17 -0. 37	0.35 -0. 65	-	-	-	-	-	-	0.025	0.015

20	0. 17 -0. 23	0.17 -0. 37	0. 35-0.65	-	-	-	-	-	-	0.025	0.015

Q345Ba	0. 12 -0. 20	0.20-0. 50	1.20-1.70	<0. 30	<0. 10	mis	-	<0.07	W0. 50	0.025	0.015

Q345C"	0. 12 -0. 20	0.20 -0. 50	1.20 -1. 70	W0. 30	<0. 10	<0. 15	-	W0.07	<0. 50	0.025	0.015

Q345D"	0. 12 -0. 18	0.20 -0. 50	1. 20~1.70	W0. 30	<0. 10	<0. 15	-	W0.07	<0. 50	0. 025	0.015

Q345Ea*b	0. 12 -0. 18	0. 20-0. 50	1. 20 -1.70	W0. 30	<0. 10	<0. 15	-	<0.07	<0. 50	0. 025	0.01

12CrMo	0. 08-0. 15	0.17 -0. 37	0. 40-0. 70	0. 40-0. 70	0. 40-0. 55	-	-	-	-	0. 025	0.015

15CrMo	0. 12 -0. 18	0. 17 -0. 37	0. 40-0. 70	0. 80-1. 10	0. 40-0.55	-	-	-	-	0. 025	0. 015

12Cr2Mo	0. 08-0. 15	<0. 50	0. 40-0.6	2.00-2. 50	0. 90-1. 13	-	-	-	-	0.025	0. 015

12Cr5Mo	<0. 15	<0.50	<0. 60	4. 00-6.00	0. 40-0. 60	-	-	-	<0. 60	0. 025	0. 015

lOMoWVNb	0. 07-0. 13	0. 50-0.8	0. 50-0.8	-	0. 60-0. 90	0. 30-0. 50	0. 50-0. 90	0. 06-0. 12	-	0.025	0.015

12SiMoVNb	0.08 -0. 14	0.50 -0.8	0. 60-0. 90	-	0. 90-1. 10	0. 30-0. 50	-	0. 04-0.08	-	0.025	0.015

awhen it is necessary to add fine grain elements, the steel shall contain at least one of Al, Nb, V and Ti. The added fine grain elements shall be indicated in the quality certificate. Ti content shall not be more than 0.20%
bAl content in steel shall not be less than 0.020%, or ala content in steel shall not be less than 0.015%

Mechanical Property

Grade	Mechanical Property
	Tensile MPa	Yield MPa			Elong after fracture A/%		Reduction of area Z/%	Shork absorption energy （KV2）/J
		Yield MPa						Shork absorption energy （KV2）/J
		Steel tube wall thickness/mm						Test temperature/℃	portrait	transver
		W16	>16 — 40	>40	portrait	transver			portrait	transver
		not less than							not less than
10	335〜490	205	195	185	24	22	一	一	—	一
20	410〜550	245	235	225	24	22	一	0	40	27
Q345B	490〜670	345	335	325	21	19	一	20	40	27
Q345C	490〜670	345	335	325	21	19	一	0	40	27
Q345D	490〜670	345	335	325	21	19	一	-20	40	27
Q345E	490〜670	345	335	325	21	19	—	-40	40	27
12CrMo	410~560	205	195	185	21	19	—	20	40	27
15CrMo	440〜640	295	285	275	21	19	一	20	40	27
12Cr2Moa	450〜60。	280			20	18	一	20	40	27
12Cr5Mo	390〜590	195	185	175	22	20	一	20	40	27
lOMoWVNb	470〜670	295	285	275	19	17	一	20	40	27
12SiMoVNb	2470	315	305	295	19	17	50	20	40	27
a 12Cr2Mo pipe，When D<30 mm and SW3 mm，the lower yield strength or specified plastic extension strength can be reduced by 10 MPa.

Test Requirement

In addition to ensuring the chemical composition and mechanical properties, the steel pipe directly rolled by ingot shall be subject to low power inspection, and eddy current inspection or magnetic flux leakage inspection can be used instead of hydraulic test.