Standardhigh pressure boiler tube

ASTMA106 GRB /API5LGRB/ASTMA53GRB

Material

GRB 20# STEEL

OD

1/4"-24", 13mm-610mm

WT

SCH20, SCH40, SCH60, SCH80, SCH100, SCH120, SCH160, XXS

Usage

Boiler Use, water transport, Building, Machinery, Traffic, Aviation, Oil development ect.

OD Tollerance

D< 48.3mm, +-0.4mm/-0.79mm , D48.3-114.3MM, +-0.79%, D> 114.3MM ±1.59/-0.79mm

WT Tollerance

WT +-12.5%

Chemical

C: < 0.30%, Si: > 0.10%, MN: 0.29-1.06%, P: < 0.035%, S: < 0.035%, Cu: < 0.40%, Ni< 0.40%, Cr: < 0.40%, Mo: 0.15%, V: 0.08%

Tensile strength

415MPA

Yield Point

240MPA

Elong-Ation

30

other test

HY, ET 

Length

2-12m Random, 5.8M FIXED, 6M FIXED, 9M FIXED

Suface 

Black paint as rusty protect

Ends

2"below plain ends, 2" above beveled ends

Methord

140mm below cold drawn, 140mm above hot rolled, 273mm above hot expand

Packing

6 steel strip, bundles, Caps , plastic wrap, loading belt

Min Order

3tons, More quantity price very low