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TORICH GB/T 14975 Seamless Stainless Steel Tubes For Structure

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TORICH GB/T 14975 Seamless Stainless Steel Tubes For Structure

Name: TORICH GB/T 14975 Seamless Stainless Steel Tubes For Structure
Brand: TORICH
SKU: GB/14975
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (157 reviews)

Minimum Order Quantity :	1 Ton	Price :	negotiable
Packaging Details :	In plywood case,In wooden box.	Delivery Time :	30 days
Payment Terms :	L/C, D/A, D/P, T/T, Western Union, MoneyGram	Supply Ability :	30000 tons/year

Place of Origin:	China	Brand Name:	TORICH
Certification:	ISO 9001,ISO 14001,TS 16949	Model Number:	GB/14975

Detail Information
Keyword:	Seamless Stainless Steel Tubes For Structure	Type:	Seamless Stainless Steel Tubes
Surface:	Polish	Material:	304 316
Shape:	Round	Length:	4-12M
OD:	5-450mm	WT:	0.5-50mm
High Light:	stainless steel round tube , stainless tube steel

Product Description

TORICH GB/T 14975 Seamless Stainless Steel Tubes For Structure

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

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TORICH GB/T 14975 Seamless Stainless Steel Tubes For Structure

stainless steel round tube

stainless tube steel

stainless tube steel

stainless steel round tube

large diameter stainless steel tube

TORICH INTERNATIONAL LIMITED

The Steel Tube Maker

TORICH GB/T 14975 Seamless Stainless Steel Tubes For Structure

stainless steel round tube

stainless tube steel

TORICH INTERNATIONAL LIMITED The Steel Tube Maker

TORICH INTERNATIONAL LIMITED

The Steel Tube Maker