Chinese Professional 306 321 Stainless Steel Tubing - Large diameter thin-walled stainless steel seamless pipe – Donghao Metal Group

We can supply high quality large diameter thin-walled stainless steel seamless tubes with SCH5/5S

Typical specifications:

219.1mm*3.76mm ,

273.1mm*4.19mm ，

323.9mm*4.57mm ,

355.6mm*4.78mm ,

406.4mm*4.78mm ,

457.2mm*4.78mm,

508mm*5.54mm ,

558.8mm*5.54mm ,

609.6mm*6.35mm ,

660.4mm* 7.92mm ,

711.2mm* 7.92mm,

Other sizes can be offered on request.

Delivery Condition: Annealed & Pickled, Annealed & Pickled + Polished, Bright Annealed 

Grades: TP304/304L, TP316/316L, TP317L, TP904L, Duplex, Other grades can be offered on request.

Standards:

ASTM A790/ASME SA790 Seamless and welded ferritic/austenitic stainless steel pipe

ASTM A312/ASME SA312 Seamless and welded austenitic stainless steel pipes

DIN 2448 Seamless steel pipes and tubes

GOST 8731 Seamless hot rolled steel pipes – technical requirements

JIS G3459 Stainless steel pipes

Test & Inspection:

1.100% PMI / SPECTRO CHEMICAL ANALYSIS TESTS

2.100% DIMENSION TESTS & 100% VISUAL EXAMINATION 

3.TENSION TEST, FLARING TESTS(FOR SEAMLESS TUBE/PIPE)/FLANGE TESTS(FOR WELDED TUBE/PIPE), HARDNESS TEST, REVERSED FLATTENING TEST(FOR WELDED TUBE/PIPE), FLATTENING TEST (FOR SEAMLESS TUBE/PIPE)

4.100% HYDROSTATIC TEST/100% NON-DESTRUCTIVE TESTS

Length: Random Length / Fixed Length