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GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

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Payment Type:

L/C,T/T,D/P,Paypal,Money Gram,Western Union

Incoterm:

FOB,CFR,CIF,FCA,CPT

Min. Order:

5 Ton

Transportation:

Ocean,Land,Air

Port:

Shanghai,Ningbo

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Model No.: GB/T14975

Brand: Torich

Type: Seamless

Certification: UL

Application: Structure Pipe

Section Shape: Round

Surface Treatment: Varnishing

Usage: Construction & Decoration

Technique: Cold Rolled Hot Rolled Cold Drawn

Material: 200 Series/300 Series/400series

Shape: Round

Finish: Heat Treatment

WT: 0.5-50mm

Product Name: Torich GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

Surface: Pickling

OD: 3-420mm

Length: 1-12mm

Supply Ability & Additional Information

Packaging: In bundles with seaworthy packing

Productivity: 50000tons/year

Transportation: Ocean,Land,Air

Place of Origin: Zhejiang, China (Mainland)

Supply Ability: 60000 Ton per year

Certificate: ISO9001:2008 ISO14001:2008, TS16949

HS Code: 7306309000

Port: Shanghai,Ningbo

Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union

Incoterm: FOB,CFR,CIF,FCA,CPT

Packaging & Delivery

Selling Units:: Ton

Package Type:: In bundles with seaworthy packing

Product Name:Torich GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

Standard:GB/T14975

Size Range: OD: 3-420mm WT: 0.5-50mm Length: 1-12mm or according to customers' actual application and production.

Application:For Structural purposes

Steel Grade:

Technology:Cold Rolled Hot Rolled Cold Drawn

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

Table 1 The Tolerance of Nominal Outer Diameter and Wall Thickness Unit:mm

Hot Roll(Extrusion.Expansion)Steel Tube				Cold Drawn(Roll) Steel Tube
Diamension		Tolerance		Diamension		Tolerance
		Ordinary Level PA	High Level PC			Ordinary Level PA	High Level PC
Nominal Outer Diameter D	＜76.1	±1.25%D	±0.60	Nominal Outer Diameter D	＜12.7	±0.30	±0.10
	76.1~＜139.7		±0.80		12.7~＜38.1	±0.30	±0.15
	139.7~＜273.1	±1.5%D	±1.20		38.1~＜88.9	±0.40	±0.30
					88.9~＜139.7	±0.9%D	±0.40
	273.1~＜323.9		±1.60		139.7~＜203.2		±0.80
					203.2~＜219.1		±1.10
	≥323.9		±0.6%D		219.1~＜323.9		±1.60
					≥323.9		±0.5%D
Nominal Wall Thinckness S	All Wall Thickness	+15%S -12.52%S	±12.5%S	Nominal Wall Thinckness S	All Wall Thickness	+12.5%S -10%S	±10%S

Table 2 Tolerance of Minimum Wall Thickness Unit:mm

Production Method	Diamension	Tolerance
		Ordinary Level PA	High Level PC
Hot Roll(Extrusion.Expansion)Steel Tube W-H	S_min＜15	+27.5% S_min 0	+25% S_min 0
	S_min≥15	+35% S_min 0
Cold Drawn(Roll) Steel Tube W-C	All Wall Thickness	+22% S 0	+20% S 0

Table 3 Grade and Chemical Component

No.	Unified Digital Code	Grade	Chemical Component(Quality Fraction)/%
No.	Unified Digital Code	Grade	C	Si	Mn	P	S	Ni	Cr	Mo	Cu	N
1	S30210	12Cr18Ni9	0.15	1.00	2.00	0.040	0.030	8.00~10.00	17.00~19.00	-	-	0.10
2	S30408	06Cr19Ni10	0.08	1.00	2.00	0.040	0.030	8.00~11.00	18.00~20.00	-	-	-
3	S30403	022Cr19Ni10	0.030	1.00	2.00	0.040	0.030	8.00~12.00	18.00~20.00	-	-	-
4	S30458	06Cr19Ni10N	0.08	1.00	2.00	0.040	0.030	8.00~11.00	18.00~20.00	-	-	0.10~0.16
5	S30478	06Cr19Ni9NbN	0.08	1.00	2.50	0.040	0.030	7.50~10.50	18.00~20.00	-	-	0.15~0.30
6	S30453	022Cr19Ni10N	0.030	1.00	2.00	0.040	0.030	8.00~11.00	18.00~20.00	-	-	0.10~0.16
7	S30908	06Cr23Ni13	0.08	1.00	2.00	0.040	0.030	12.00~15.00	22.00~24.00	-	-	-
8	S31008	06Cr25Ni20	0.08	1.50	2.00	0.040	0.030	19.00~22.00	24.00~26.00	-	-	-
9	S31252	015Cr20Ni18Mo6CuN	0.02	0.80	1.00	0.030	0.010	17.50~18.50	19.50~20.50	6.00~6.50	0.50~1.00	0.18~0.22
10	S31608	06Cr17Ni12Mo2	0.08	1.00	2.00	0.040	0.030	10.00~14.00	16.00~18.00	2.00~3.00	-	-
11	S31603	022Cr17Ni12Mo2	0.030	1.00	2.00	0.040	0.030	10.00~14.00	16.00~18.00	2.00~3.00	-	-

Table 4 Mechnical Properties

No.	Serial number	Steel Grade	Mechnical Properties			Hardness
			tensile strength R_m/MPa	elongation strength R_p0.2/MPa	elongation after fracture A/%	HBW/HV/HRB
			≥			≤
1	S30210	12Cr18Ni9	520	205	35	192HbW/200HV/90HRB
2	S30438	06Cr19Ni10	520	205	35	192HbW/200HV/90HRB
3	S30403	022Cr19Ni10	480	175	35	192HbW/200HV/90HRB
4	S30458	06Cr19Ni10N	550	275	35	192HbW/200HV/90HRB
5	S30478	06Cr19Ni9NbN	685	345	35	-
6	S30453	022Cr19Ni10N	550	245	40	192HbW/200HV/90HRB
7	S30908	06Cr23Ni13	520	205	40	192HbW/200HV/90HRB
8	S31008	06Cr25Ni20	520	205	40	192HbW/200HV/90HRB
9	S31252	015Cr20Ni18Mo6CuN	655	310	35	220HbW/230HV/96HRB
10	S31608	06Cr17Ni12Mo2	520	205	35	192HbW/200HV/90HRB
11	S31603	022Cr17Ni12Mo2	480	175	35	192HbW/200HV/90HRB
12	S31609	07Cr17Ni12Mo2Ti	515	205	35	192HbW/200HV/90HRB
13	S31668	06Cr17Ni12Mo2N	530	205	35	192HbW/200HV/90HRB
14	S31653	022Cr17Ni12Mo2N	550	245	40	192HbW/200HV/90HRB
15	S31658	06Cr17Ni12Mo2N	550	275	35	192HbW/200HV/90HRB
16	S31688	06Cr18Ni12Mo2Cu2	520	205	35	-
17	S31683	022Cr18Ni14Mo2Cu2	480	180	35	-
18	S31782	015Cr21Ni26Mo5Cu2	490	215	35	192HbW/200HV/90HRB

Table 5 Testing items and sampling quantity of steel tubes

Number	Testing items	Sampling quantity
1	Chemical composition	1 sample from each furnace
2	Tensile test	1 sample from each of two steel tubes on each batch
3	Hardness test	1 sample from each of two steel tubes on each batch
4	Ultrasonic testing	ALL
5	Hydraulic test	ALL
6	Flattening test	1 sample from each of two steel tubes on each batch
7	Expansion test	1 sample from each of two steel tubes on each batch
8	Eddy current testing	ALL
9	Intergranular corrosion test	1 sample from each of two steel tubes on each batch