ASTM A249: Standard specification for welded austenitic steel boiler,superheater, heat-exchanger and condenser tubes.

ASTM A269:Standard specification for welded austenitic stainless steel tubing for general service

ASTM A688:Standard specification for welded austenitic stainless steel feedwater heater tubes.

ASTM A554:Standard specification for welded stainless steel mechanical tubing.

ASTM A268:Specification for seamless and welded Ferritic/Martensitic stainless steel tubing for General Service

ASTM A789:Specification for seamless and welded Ferritic/Austenitic stainless steel tubing for General Service

ASTM A312:Seamless/Welded austenitic stainless steel pipe

Germanic standards:

DIN17455:General purpose welded circular stainless steel tubes

DIN17457: Welded circular austenitic stainless steel tubes subject to special requirements; technical delivery conditions

European Standard:

EN 10217-7:Welded Steel Tubes for pressure purposes-Part 7 Stainless steel tubes

.  Good Quality: Your client satisfied on our quality. You can get good reputation from your market and obtain more orders.

.  Good Service: Our professional service before and after sale.

.  Good Reasonable Price:We have Advance and High Quality Equipments and 20' Years' Production Experience Which Assure the good reasonable Price.

Standard

ASME / ASTM / DIN / EN

Material Grade

Duplex  Grade:S32205

Outer Diameter

6mm-2032mm

Wall Thickness

0.8mm – 50mm

Length

Depends on Customers' Request

Tolerance

According to ASME / ASTM / DIN / EN

Leakage Test

ET  Or  Hydraulic Test Or Air Pressure Test Under Water

Main  process

Welding, Bright Annealing,Pickled

Certificate

ISO 9001:2008, Manufacture License Of Pressure Tube

Marking

Brand, Standard, Grade, Size, Length and Heat No. Or Depends On Customer.

Packing

Bundles With Plastic Bags, Wooden Box With Angle Steel Frame Or others

Payment Terms

T/T, L/C at sight

Delivery Time

Generally 15Days – 45Days Or Depends on the quantity and Customers' Request

Capacity

2000 Tons Per Month

Chemical Analysis

Test done as per required quality standards

Destructive / Mechanical Testing

Tensile | Hardness | Flattening | Flare | Flange

Reverse-bend and Re. flat tests

Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end

Eddy Current Testing

Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System

Hydrostatic Testing

100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s .

Air Under Pressure Test

To check any evidence of air leakage

Visual Inspection

After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections