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GB/T 12770 Mechanical Structures Welded Stainless Steel Tubes

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Payment Type:

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

Incoterm:

FOB,CFR,CIF,FCA,CPT

Min. Order:

2 Ton

Transportation:

Ocean,Land,Air

Port:

Ningbo,Qingdao

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Model No.: GB/T 12770

Brand: TORICH

Shape: Round

Length: 2-12m

Type: Welded Steel Tube

Product Name: GB/T 12770 Mechanical Structures Welded Stainless Steel Tubes

Material: 12Cr18Ni9 06Cr19Ni10 022Cr19Ni10 022Cr17Ni12Mo2

Usage: Mechanical Structures

OD: 20-500mm

WT: 0.3-10mm

Supply Ability & Additional Information

Packaging: In hexagonal bundles or wooden box

Productivity: 60000 Tons per Year

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 60000 Tons per Year

Certificate: ISO9001:2008, ISO14001:2008, TS16949

HS Code: 7219340000

Port: Ningbo,Qingdao

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

Incoterm: FOB,CFR,CIF,FCA,CPT

Packaging & Delivery

Selling Units:: Ton

Package Type:: In hexagonal bundles or wooden box

GB/T 12770 Mechanical Structures Welded Stainless Steel Tubes

Size:

OD:20-500mm

WT:2-50mm

Length:2-12m

Application:

Electric heater fields like metal tube heater,hot runner,thermostat,heating apparatus,air conditioning,refrigerators and other household appliances,heating etc.Food and beverage,petroleum chemical industry,heat exchanger,condenser,marine environment,paper making,chemical fertilizer,instrumentation,medical,Automotive engineering,aerospace,pipe structure,priting textile and etc.

Surface condition:

Bright Annealed

Polished

Annealed&Pickled

Bright Annealed+Fine polishing

Electropolishing

Mechanical Properties of Steel Tube

Number	Grade	Required Tensile Strength of Plastics Rp0.2/ MPa	Tensile Strength Rm MPa		Elongation A/ %
			Tensile Strength Rm MPa		Heat Treatment State	Non-heat Treatment State
		Not Less Than
1	12Cr18Ni9	210		520	35	25
2	06Cr19Ni10	210		520
3	022Cr19Ni10	180		480
4	06Cr25Ni20	210		520
5	06Cr17Ni12Mo2	210		520
6	022Cr17Ni12Mo2	180		480
7	06Cr18Ni11Mo2	210		520
8	06Cr18Ni11Nb	210		520
9	022Cr22Ni5Mo3N	450		620	25	-
10	022Cr23Ni5Mo3N	485		655	25	-
11	022Cr25Ni7Mo4N	550		800	15	-
12	022Cr19Ti	180		360	20	-
13	019Cr19Mo2NbTi	240		410
14	06Cr13Al	177		410
15	022Cr11Ti	275		400	18	-
16	022Cr12Ni	275		400	18
17	06Cr13	210		410	20	-

Tolerance of OD

Classification	Nominal OD	Permissible Tolerance
Classification	Nominal OD	PC	PB	PA
H T	＜25	±0.20	±0.15	±0.10
	≥25~＜40	±0.30	±0.25	±0.20
	≥40~＜63	±0.50	±0.30	±0.25
	≥63~＜90	±0.60	±0.50	±0.40
	≥90~＜159	±0.80	±0.65	±0.50
	≥159~＜300	±0.8%D	±0.7%D	±0.5%D
	≥300~＜610	±0.1%D	±0.8%D	±0.6%D
	≥10	protocol	protocol	protocol
WC SP	＜25	±0.15	±0.12	±0.10
	≥25~＜40	±0.20	±0.15	±0.13
	≥40~＜50	±0.20	±0.18	±0.15
	≥50~＜60	±0.25	±0.20	±0.18
	≥60~＜90	±0.30	±0.28	±0.25
	≥90~＜100	±0.40	±0.35	±0.30
	≥100~＜200	±0.5%D	±0.4%D	protocol
	≥200	protocol	protocol	protocol