Hot Selling for Alloy Pipe Stockist - Seamless steel tubes for high-pressure boilers in GB/T5310-2017 Standard – Sanonpipe

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Hot Selling for Alloy Pipe Stockist - Seamless steel tubes for high-pressure boilers in GB/T5310-2017 Standard – Sanonpipe Detail:

Overview

Application

It is mainly used to make high-quality carbon structural steel, alloy structural steel and stainless heat-resistant steel seamless steel pipes for high pressure and above steam boiler pipes.

Main Grade

Grade of high-quality carbon structural steel: 20g、20mng、25mng

Grade of alloy structural steel15mog、20mog、12crmog、15crmog、12cr2mog、12crmovg、12cr3movsitib, etc

Grade of rust-resistant heat-resistant steel1cr18ni9 1cr18ni11nb

Chemical Component

牌号	质量等级	化学成分(质量分数广小/%
		C	Si	Mn	P	S	Nb	V	Ti	Cr	Ni	Cu	Nd	Mo	B	Als”
		不大于														不小于
Q345	A	0.20	0.50	1.70	0.035	0.035				0.30	0.50	0.20	0.012	0.10	——	—
	B				0.035	0.035
	C				0.030	0.030	0.07	0.15	0.20							0.015
	D	0.18			0.030	0.025
	E				0.025	0.020
Q390	A	0.20	0.50	1.70	0.035	0.035	0.07	0.20	0.20	0.3。	0.50	0.20	0.015	0.10	—	—
	B				0.035	0.035
	C				0.030	0.030										0,015
	D				0.030	0.025
	E				0.025	0.020
Q42O	A	0.20	0.50	1.70	0.035	0.035	0.07	0.2。	0.20	0.30	0.80	0.20	0.015	0.20	——	——
	B				0.035	0.035
	C				0.030	0.030										0.015
	D				0.030	0.025
	E				0.025	0.020
Q46O	C	0.20	0.60	1.80	0.030	0.030	0.11	0.20	0.20	0.30	0.80	0.20	0.015	0.20	0.005	0.015
	D				0.030	0.025
	E				0.025	0.020
Q500	C	0J8	0.60	1.80	0.025	0.020	0.11	0.20	0.20	0.60	0.80	0.20	0.015	0.20	0.005	0.015
	D				0.025	0.015
	E				0.020	0.010
Q550	C	0.18	0.60	2.00	0.025	0,020	0.11	0.20	0.20	0.80	0.80	0.20	0.015	0.30	0.005	0.015
	D				0.025	0,015
	E				0.020	0.010
Q62O	C	0.18	0.60	2.00	0.025	0.020	0.11	0.20	0.20	1.00	0.80	0.20	0.015	0.30	0.005	0.015
	D				0.025	0.015
	E				0.020	0.010
¹除Q345A、Q345B牌号外，钢中应至少含有细化晶粒元素Al、Nb、V、Ti中的一种，根据需要，供方可添加其中一种或几种细化晶粒元素，最大值应符合表中规定。组合加入时，Nb+V+Ti<0.22%° * 对于 Q345、Q390、Q420 和 Q46O 牌号，Mo+Cr<0.30%_o °各牌号的Cr、Ni作为残余元素时，Cr、Ni含量应各不大于0.30%；当需要加入时，其含量应符合表中规定或由供需双方协商确定。 ^J如供方能保证氮元素含量符合表中规定，可不进行氮含量分析。如果钢中加入Al、Nb、V、Ti等具有固氮作用的合金元素，氮元素含量不作限制，固氮元素含量应在质量证明书中注明. ‘当采用全铝时，全铝含量AIt^0.020%_B

Mechanical Property

No	Grade	Mechanical Property
		Tensile MPa	Yield MPa	Extend L/T	Impect (J) Vertical/ Horizontal	Handness HB
1	20G	410- 550	≥ 245	24/22%	40/27	—
2	20MnG	415- 560	≥ 240	22/20%	40/27	—
3	25MnG	485- 640	≥ 275	20/18%	40/27	—
4	15MoG	450- 600	≥ 270	22/20%	40/27	—
6	12CrMoG	410- 560	≥ 205	21/19%	40/27	—
7	15CrMoG	440- 640	≥ 295	21/19%	40/27	—
8	12Cr2MoG	450- 600	≥ 280	22/20%	40/27	—
9	12Cr1MoVG	470- 640	≥ 255	21/19%	40/27	—
10	12Cr2MoWVTiB	540- 735	≥ 345	18/-%	40/-	—
11	10Cr9Mo1VNbN	≥ 585	≥ 415	20/16%	40/27	≤ 250
12	10Cr9MoW2VNbBN	≥ 620	≥ 440	20/16%	40/27	≤ 250

Test Requirement

In addition to ensuring chemical composition and mechanical properties, hydrostatic tests are performed one by one, and flaring and flattening tests are performed. . In addition, there are certain requirements for the microstructure, grain size, and decarburization layer of the finished steel pipe.

Supply Ability

Supply Ability: 2000 Tons Per Month Per Grade of GB/T5310-2017 Alloy Steel Pipe

Packaging

In Bundles And In Strong Wooden Box

Delivery

7-14 days if in stock, 30-45 days to produce

Payment

30% depsoit, 70% L/C or B/L copy or 100% L/C at sight

Product Detail

Seamless Steel Tubes For High-Pressure Boilers

GB/T5310-2017

ASME SA-106/SA-106M-2015

ASTMA210(A210M)-2012

ASME SA-213/SA-213M

ASTM A335/A335M-2018

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